##### Table of Contents

---

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549



---

FORM 10-Q



---



|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------

For the quarterly period ended September 30, 2007

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from  to

Commission File Number: 000-50453



---

DISTRIBUTED ENERGY SYSTEMS CORP.

(Exact name of registrant as specified in its charter)



---



|                                                               |  |                                        
|-------------------------------------------------------------- |  | ---------------------------------------
|Delaware                                                       |  | 20-0177690                             
|(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification Number)

10 Technology Drive, Wallingford, CT 06492

(Address of registrants principal executive office)

(203) 678-2000

(Registrants telephone number, including area code)



---

Indicate by check mark whether the registrant
(1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has
been subject to such filing requirements for the past 90 days.    Yes  x    No ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated
filer (as defined in Rule 12b-2 of the Act).

Large accelerated filer ̈Accelerated filer  x    Non-accelerated filer ̈

Indicate by check mark whether the registrant is a shell company (as defined
in Rule 12b-2 of the Act).    YES ̈NO  x

The number of shares outstanding of the registrants common stock, par value $.01 per share, as of November 2, 2007 was
39,948,982.



---



---

##### Table of Contents

DISTRIBUTED ENERGY SYSTEMS CORP.

INDEX to FORM 10-Q



|                                                                                                                             |  |      
|---------------------------------------------------------------------------------------------------------------------------- |  | -----
|                                                                                                                             |  | Page 
|PART I. FINANCIAL INFORMATION                                                                                                |  |      
|                                                                                                                             | 
|Item 1 - Financial Statements (Unaudited)                                                                                    |  |      
|                                                                                                                             | 
|Condensed Consolidated Balance Sheets at September 30, 2007 and December 31, 2006                                            |  | 1    
|                                                                                                                             | 
|Condensed Consolidated Statements of Operations for the three-month and nine-month periods ended September 30, 2007 and 2006 |  | 2    
|                                                                                                                             | 
|Condensed Consolidated Statements of Cash Flows for the nine-month periods ended September 30, 2007 and 2006                 |  | 3    
|                                                                                                                             | 
|Notes to Condensed Consolidated Financial Statements                                                                         |  | 4-18 
|                                                                                                                             | 
|Item 2 - Managements Discussion and Analysis of Financial Condition and Results of Operations                               |  | 19-35
|                                                                                                                             | 
|Item 3 - Quantitative and Qualitative Disclosures about Market Risk                                                          |  | 35-36
|                                                                                                                             | 
|Item 4 - Controls and Procedures                                                                                             |  | 36   
|                                                                                                                             | 
|PART II. OTHER INFORMATION                                                                                                   |  |      
|                                                                                                                             | 
|Item 1 - Legal Proceedings                                                                                                   |  | 36-37
|                                                                                                                             | 
|Item 1A  Risk Factors                                                                                                       |  | 37-53
|                                                                                                                             | 
|Item 2  Unregistered Sales of Equity Securities and Use of Proceeds                                                         |  | 54   
|                                                                                                                             | 
|Item 4 - Submission of Matters to a Vote of Security Holders                                                                 |  | 54   
|                                                                                                                             | 
|Item 5 - Other Information                                                                                                   |  | 55   
|                                                                                                                             | 
|Item 6  Exhibits                                                                                                            |  | 55   
|                                                                                                                             | 
|Signatures                                                                                                                   |  | 55   
|                                                                                                                             | 
|Certifications                                                                                                               |  |      



---

##### Table of Contents

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)



|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|---------------------------------------------------------------------------------------------------------------------------------- |  | ----------------- | ------------ | - | ---------------- | - | ------------ | -
|                                                                                                                                   |  | September 30,2007 |              |   | December 31,2006 |  
|ASSETS                                                                                                                             |  |                   |              |   |                  |   |              |  
|Current assets:                                                                                                                    |  |                   |              |   |                  |   |              |  
|Cash and cash equivalents                                                                                                          |  | $                 | 6,622,132    |   |                  | $ | 4,911,704    |  
|Marketable securities                                                                                                              |  |                   |             |   |                  |   | 13,256,116   |  
|Current portion of restricted cash                                                                                                 |  |                   | 468,941      |   |                  |   | 794,705      |  
|Accounts receivable, less allowances of $1,672,043 and $688,778, respectively                                                      |  |                   | 8,339,839    |   |                  |   | 7,857,484    |  
|Costs in excess of billings on contracts in progress (Note 5)                                                                      |  |                   | 4,317,732    |   |                  |   | 4,102,573    |  
|Inventories, net (Note 5)                                                                                                          |  |                   | 5,734,261    |   |                  |   | 4,784,439    |  
|Deferred costs                                                                                                                     |  |                   | 1,226,362    |   |                  |   | 810,508      |  
|Interest receivable                                                                                                                |  |                   |             |   |                  |   | 100,798      |  
|Debt issuance costs, net (Note 4)                                                                                                  |  |                   | 176,595      |   |                  |   |             |  
|Other current assets                                                                                                               |  |                   | 893,775      |   |                  |   | 1,060,931    |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Total current assets                                                                                                               |  |                   | 27,779,637   |   |                  |   | 37,679,258   |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Fixed assets, net                                                                                                                  |  |                   | 19,261,955   |   |                  |   | 22,740,210   |  
|Long-term portion of restricted cash                                                                                               |  |                   | 1,266,568    |   |                  |   | 6,229,176    |  
|Intangible assets, net                                                                                                             |  |                   | 1,393,984    |   |                  |   | 3,012,321    |  
|Other assets, net                                                                                                                  |  |                   | 237,972      |   |                  |   | 228,657      |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Total assets                                                                                                                       |  | $                 | 49,940,116   |   |                  | $ | 69,889,622   |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|LIABILITIES AND STOCKHOLDERS EQUITY                                                                                               |  |                   |              |   |                  |   |              |  
|Current liabilities:                                                                                                               |  |                   |              |   |                  |   |              |  
|Current portion of long-term debt                                                                                                  |  | $                 | 1,476,882    |   |                  | $ | 1,379,460    |  
|Current portion of capital lease                                                                                                   |  |                   | 217,546      |   |                  |   | 208,556      |  
|Convertible debt, net of debt discount of $13,741,935 (Note 4)                                                                     |  |                   | 1,258,065    |   |                  |   |             |  
|Accounts payable                                                                                                                   |  |                   | 5,052,756    |   |                  |   | 6,099,536    |  
|Accrued expenses (Note 6 and 12)                                                                                                   |  |                   | 3,087,286    |   |                  |   | 2,035,599    |  
|Accrued compensation                                                                                                               |  |                   | 707,722      |   |                  |   | 2,122,068    |  
|Accrued taxes (Note 12)                                                                                                            |  |                   | 375,224      |   |                  |   | 348,050      |  
|Billings in excess of costs on contracts in progress (Note 5)                                                                      |  |                   | 243,943      |   |                  |   | 1,723,988    |  
|Deferred revenues                                                                                                                  |  |                   | 2,155,836    |   |                  |   | 836,607      |  
|Customer advances                                                                                                                  |  |                   | 108,821      |   |                  |   | 60,344       |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Total current liabilities                                                                                                          |  |                   | 14,684,081   |   |                  |   | 14,814,208   |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Long term liabilities:                                                                                                             |  |                   |              |   |                  |   |              |  
|Deferred revenues                                                                                                                  |  |                   | 168,076      |   |                  |   | 168,076      |  
|Long-term debt                                                                                                                     |  |                   |             |   |                  |   | 5,540,411    |  
|Long-term portion of capital lease                                                                                                 |  |                   | 2,481,233    |   |                  |   | 2,626,461    |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Total liabilities                                                                                                                  |  |                   | 17,333,390   |   |                  |   | 23,149,156   |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Commitments and contingencies (Note 12)                                                                                            |  |                   |              |   |                  |   |              |  
|Stockholders equity (Note 10):                                                                                                    |  |                   |              |   |                  |   |              |  
|Preferred stock, undesignated, $.01 par value per share; 5,000,000 shares authorized; no shares issued or outstanding              |  |                   |             |   |                  |   |             |  
|Common stock, $.01 par value; 250,000,000 shares authorized; 39,957,573 and 39,442,180 shares issued and outstanding,
respectively |  |                   | 399,575      |   |                  |   | 394,421      |  
|Additional paid-in capital                                                                                                         |  |                   | 261,639,314  |   |                  |   | 235,624,657  |  
|Accumulated other comprehensive loss (Note 2)                                                                                      |  |                   |             |   |                  |   | (9,115       | )
|Accumulated deficit                                                                                                                |  |                   | (229,432,163 | ) |                  |   | (189,269,497 | )
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Total stockholders equity                                                                                                         |  |                   | 32,606,726   |   |                  |   | 46,740,466   |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  
|Total liabilities and stockholders equity                                                                                         |  | $                 | 49,940,116   |   |                  | $ | 69,889,622   |  
|                                                                                                                                   |  |                   |              |   |                  |   |              |  

The accompanying notes are an integral part of the condensed consolidated financial statements.



---

##### Table of Contents

DISTRIBUTED ENERGY SYSTEMS CORP.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)



|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|------------------------------------------------------------------------------------------------------------------------------------------------------------ |  | -------------------------------- | ----------- | - | ------------------------------- | - | ---------- | ---- |  | - | ----------- | - |  | - | ----------- | -
|                                                                                                                                                             |  | Three Months Ended September 30, |             |   | Nine Months Ended September 30, |  
|                                                                                                                                                             |  | 2007                             |             |   | 2006                            |   |            | 2007 |  |   | 2006        |  
|Revenues                                                                                                                                                     |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Contract                                                                                                                                                     |  | $                                | 3,776,580   |   |                                 | $ | 7,407,614  |      |  | $ | 14,918,224  |   |  | $ | 17,680,417  |  
|Product                                                                                                                                                      |  |                                  | 1,263,328   |   |                                 |   | 5,644,028  |      |  |   | 2,578,099   |   |  |   | 8,583,934   |  
|Service                                                                                                                                                      |  |                                  | 2,103,363   |   |                                 |   | 1,703,661  |      |  |   | 4,898,836   |   |  |   | 5,540,519   |  
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Total revenues                                                                                                                                               |  |                                  | 7,143,271   |   |                                 |   | 14,755,303 |      |  |   | 22,395,159  |   |  |   | 31,804,870  |  
|                                                                                                                                                             |  |                                  |             |  
|Cost of revenues                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Contract                                                                                                                                                     |  |                                  | 5,414,737   |   |                                 |   | 7,135,277  |      |  |   | 18,550,729  |   |  |   | 17,125,439  |  
|Product                                                                                                                                                      |  |                                  | 1,123,192   |   |                                 |   | 5,262,627  |      |  |   | 2,235,381   |   |  |   | 8,272,588   |  
|Service                                                                                                                                                      |  |                                  | 3,247,246   |   |                                 |   | 1,850,167  |      |  |   | 6,444,774   |   |  |   | 5,365,823   |  
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Total cost of revenues                                                                                                                                       |  |                                  | 9,785,175   |   |                                 |   | 14,248,071 |      |  |   | 27,230,884  |   |  |   | 30,763,850  |  
|                                                                                                                                                             |  |                                  |             |  
|Gross margin                                                                                                                                                 |  |                                  | (2,641,904  | ) |                                 |   | 507,232    |      |  |   | (4,835,725  | ) |  |   | 1,041,020   |  
|                                                                                                                                                             |  |                                  |             |  
|Operating expenses:                                                                                                                                          |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Research and development:                                                                                                                                    |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Depreciation and amortization                                                                                                                                |  |                                  | 71,885      |   |                                 |   | 103,399    |      |  |   | 264,622     |   |  |   | 348,652     |  
|Other research and development (includes stock based compensation in the amount of $33,000, $55,000, $ 82,000 and $159,000
respectively)                     |  |                                  | 458,545     |   |                                 |   | 842,757    |      |  |   | 1,547,775   |   |  |   | 2,470,869   |  
|Restructuring costs                                                                                                                                          |  |                                  |            |   |                                 |   |           |      |  |   | 701,888     |   |  |   |            |  
|Selling, general and administrative:                                                                                                                         |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Depreciation and amortization                                                                                                                                |  |                                  | 383,755     |   |                                 |   | 387,183    |      |  |   | 3,535,051   |   |  |   | 1,104,185   |  
|Other selling, general and administrative (includes stock based compensation in the amounts of $395,000, $878,000 , $1,265,000 and $4,074,000,
respectively) |  |                                  | 5,901,336   |   |                                 |   | 5,722,482  |      |  |   | 23,043,568  |   |  |   | 18,105,477  |  
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Total operating expenses                                                                                                                                     |  |                                  | 6,815,521   |   |                                 |   | 7,055,821  |      |  |   | 29,092,904  |   |  |   | 22,029,183  |  
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Loss from operations                                                                                                                                         |  |                                  | (9,457,425  | ) |                                 |   | (6,548,589 | )    |  |   | (33,928,629 | ) |  |   | (20,988,163 | )
|Interest income                                                                                                                                              |  |                                  | 70,709      |   |                                 |   | 357,550    |      |  |   | 453,317     |   |  |   | 1,102,492   |  
|Interest expense                                                                                                                                             |  |                                  | (2,713,716  | ) |                                 |   | (195,259   | )    |  |   | (3,702,131  | ) |  |   | (534,389    | )
|Loss on extinguishment of debt                                                                                                                               |  |                                  | (3,258,919  | ) |                                 |   |           |      |  |   | (3,258,919  | ) |  |   |            |  
|Other income                                                                                                                                                 |  |                                  | 115,004     |   |                                 |   | 71,044     |      |  |   | 273,696     |   |  |   | 223,544     |  
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Net loss                                                                                                                                                     |  | $                                | (15,244,347 | ) |                                 | $ | (6,315,254 | )    |  | $ | (40,162,666 | ) |  | $ | (20,196,516 | )
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Basic and diluted net loss per share                                                                                                                         |  | $                                | (0.38       | ) |                                 | $ | (0.16      | )    |  | $ | (1.01       | ) |  | $ | (0.53       | )
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  
|Shares used in computing basic and diluted net loss per share                                                                                                |  |                                  | 39,886,213  |   |                                 |   | 39,062,609 |      |  |   | 39,767,026  |   |  |   | 38,394,530  |  
|                                                                                                                                                             |  |                                  |             |   |                                 |   |            |      |  |   |             |   |  |   |             |  

The accompanying notes are an integral part of the condensed consolidated financial statements.



2



---

##### Table of Contents

DISTRIBUTED ENERGY SYSTEMS CORP.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)



|                                                                              |  |                                 |             |   |      |   |             |  
|----------------------------------------------------------------------------- |  | ------------------------------- | ----------- | - | ---- | - | ----------- | -
|                                                                              |  | Nine Months Ended September 30, |            
|                                                                              |  | 2007                            |             |   | 2006 |  
|Cash flows from operating activities:                                         |  |                                 |             |   |      |   |             |  
|Net loss                                                                      |  | $                               | (40,162,666 | ) |      | $ | (20,196,516 | )
|Adjustments to reconcile net loss to net cash used in operating activities:   |  |                                 |             |   |      |   |             |  
|Depreciation and amortization                                                 |  |                                 | 4,424,796   |   |      |   | 1,899,499   |  
|Provision for bad debts                                                       |  |                                 | 1,096,613   |   |      |   | 134,376     |  
|Amortization (accretion) of premiums/discounts on marketable securities       |  |                                 | (47,021     | ) |      |   | (311,246    | )
|Impairment of intangible assets                                               |  |                                 | 1,113,753   |   |      |   |            |  
|Non-cash stock-based compensation                                             |  |                                 | 1,443,403   |   |      |   | 4,441,963   |  
|Amortization of debt discount                                                 |  |                                 | 2,151,098   |   |      |   |            |  
|Amortization of debt issuance costs                                           |  |                                 | 575,294     |   |      |   |            |  
|Loss on extinguishment of debt                                                |  |                                 | 3,258,919   |   |      |   |            |  
|Expense for warrants issued                                                   |  |                                 | 6,386,736   |   |      |   |            |  
|Loss from sale of marketable securities                                       |  |                                 | 2,175       |   |      |   |            |  
|(Gain)/loss on disposal of assets                                             |  |                                 | 21,294      |   |      |   | (18,930     | )
|Changes in operating assets and liabilities, excluding effect of acquisition: |  |                                 |             |   |      |   |             |  
|Accounts receivable                                                           |  |                                 | (1,578,968  | ) |      |   | (5,058,142  | )
|Costs in excess of billings                                                   |  |                                 | (215,159    | ) |      |   | 59,085      |  
|Inventories and deferred costs                                                |  |                                 | (1,365,676  | ) |      |   | 1,598,325   |  
|Other current and non-current assets                                          |  |                                 | 176,477     |   |      |   | 158,147     |  
|Accounts payable and accrued expenses                                         |  |                                 | (1,409,439  | ) |      |   | (681,464    | )
|Accrued taxes payable                                                         |  |                                 | 27,174      |   |      |   | (135,759    | )
|Billings in excess of costs                                                   |  |                                 | (1,480,045  | ) |      |   | 3,063,265   |  
|Deferred revenue and contract advances                                        |  |                                 | 1,367,706   |   |      |   | (4,286,506  | )
|                                                                              |  |                                 |             |   |      |   |             |  
|Net cash used in operating activities                                         |  |                                 | (24,213,536 | ) |      |   | (19,333,903 | )
|                                                                              |  |                                 |             |   |      |   |             |  
|Cash flows from investing activities:                                         |  |                                 |             |   |      |   |             |  
|Purchases of fixed assets                                                     |  |                                 | (381,089    | ) |      |   | (2,193,508  | )
|Proceeds from the sale of fixed assets                                        |  |                                 |            |   |      |   | 120,000     |  
|Cash paid for acquisition, including transaction costs, net of cash acquired  |  |                                 |            |   |      |   | (1,175,000  | )
|Purchases of marketable securities                                            |  |                                 |            |   |      |   | (26,863,012 | )
|Proceeds from maturities and sales of marketable securities                   |  |                                 | 13,310,077  |   |      |   | 27,976,632  |  
|Restricted cash                                                               |  |                                 | 5,288,372   |   |      |   | (5,947,287  | )
|                                                                              |  |                                 |             |   |      |   |             |  
|Net cash provided by (used in) investing activities                           |  |                                 | 18,217,360  |   |      |   | (8,082,175  | )
|                                                                              |  |                                 |             |   |      |   |             |  
|Cash flows from financing activities:                                         |  |                                 |             |   |      |   |             |  
|Borrowings from debt, net of debt issuance costs                              |  |                                 | 25,493,324  |   |      |   | 523,488     |  
|Debt principal payments                                                       |  |                                 | (18,079,226 | ) |      |   | (511,935    | )
|Proceeds from sale of common stock, net                                       |  |                                 | 97,016      |   |      |   | 7,860,295   |  
|Proceeds from exercise of stock options                                       |  |                                 | 195,490     |   |      |   | 317,437     |  
|Proceeds from exercise of warrants                                            |  |                                 |            |   |      |   | 274,947     |  
|                                                                              |  |                                 |             |   |      |   |             |  
|Net cash provided by financing activities                                     |  |                                 | 7,706,604   |   |      |   | 8,464,232   |  
|                                                                              |  |                                 |             |   |      |   |             |  
|Net increase (decrease) in cash                                               |  |                                 | 1,710,428   |   |      |   | (18,951,846 | )
|Cash and cash equivalents at beginning of year                                |  |                                 | 4,911,704   |   |      |   | 20,600,791  |  
|                                                                              |  |                                 |             |   |      |   |             |  
|Cash and cash equivalents at end of period                                    |  | $                               | 6,622,132   |   |      | $ | 1,648,945   |  
|                                                                              |  |                                 |             |   |      |   |             |  

The accompanying notes are an integral part of the condensed consolidated financial statements.



3



---

##### Table of Contents

DISTRIBUTED ENERGY SYSTEMS CORP.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

1. FORMATION AND OPERATIONS OF THE COMPANY

Distributed Energy Systems Corp. (the Company, we or Distributed Energy) was incorporated in Delaware on May 19, 2003 to create and deliver products and solutions to the new energy marketplace,
giving users greater control over their energy cost, quality, and reliability. Distributed Energy brings together two established businesses: Proton Energy Systems, Inc. (Proton) and Northern Power Systems, Inc. (Northern).
Together, as subsidiaries of Distributed Energy, Proton and Northern offer an array of practical energy technologies, including Protons advanced hydrogen generation products and Northerns renewable and fossil-fuel power systems.

To address our need to raise additional working capital, we entered into a securities purchase agreement (the Perseus Agreement), with Perseus
Partners VII, L.P. (Perseus) on May 10, 2007. Pursuant to the terms of the Perseus Agreement, on June 1, 2007 we closed on an initial $12.5 million loan by Perseus to us. In connection with this initial loan, we executed a
senior secured promissory note in favor of Perseus (the Initial Note), and issued to Perseus an initial investment warrant (the Initial Warrant). The Initial Note had an interest rate of 12.5% per annum, compounded
quarterly, payable in cash or in kind at our discretion, and was due on March 1, 2008. The loan was secured by a security interest on all of our assets and those of our material subsidiaries. The Initial Warrant is exercisable for five years
and gives Perseus the right to purchase up to 7,954,536 shares of our common stock at an exercise price of $0.80 per share.

On August 24, 2007,
pursuant to the terms of the Perseus Agreement, we closed on a subsequent $15.0 million loan by Perseus to us, or the subsequent funding. The net amount received by us was $2,140,411, after deduction of the amounts sufficient to repay in full the
principal and interest due on the Initial Note. In connection with this loan, the Initial Note was repaid and cancelled, and we executed a senior secured convertible promissory note in favor of Perseus (the Subsequent Convertible Note),
and issued to Perseus a subsequent investment warrant (the Subsequent Warrant).

The Subsequent Convertible Note has an original principal
amount of $15.0 million, bears interest at a rate of 12.5% per annum, compounded quarterly, and is due in full on November 30, 2008 or earlier upon an event of default, a change of control or liquidation or dissolution. We may choose to
pay the interest in cash or in kind by the issuance of additional senior secured convertible promissory notes (the Additional Convertible Notes). At Perseuss election, the principal and any unpaid interest under the Subsequent
Convertible Note are convertible immediately after issuance into shares of our common stock at a conversion price of $0.57 per share. Assuming that (a) we pay all interest expense in kind and (b) Perseus fully converts the Subsequent
Convertible Note of $15 million and all of the Additional Convertible Notes, Perseus would receive 30,779,675 shares of our common stock. The loan is secured by a security interest on all of our assets and those of its subsidiaries.

The Subsequent Warrant is exercisable for five years and gives Perseus the right to purchase up to 34,989,629 shares of our common stock at exercise prices ranging from
$0.80 to $3.00 per share.

Perseus, through its right to convert the Subsequent Convertible Note into our common stock and exercise the Initial Warrant and
the Subsequent Warrant, could acquire enough shares of our common stock to raise its ownership to greater than 50% of the our total outstanding common stock. In addition, under the terms of the Perseus Agreement, upon the closing of the Subsequent
Funding, we were obligated to reduce the size of our board of directors to five, and at that time Perseus became entitled to representation on our board of directors equal to at least its percentage ownership in our company, assuming exercise of its
warrants and conversion of the Subsequent Convertible Note. Based upon our current capitalization, Perseus now has the right under this provision to name a majority of the directors on our board.



4



---

##### Table of Contents

On August 24, 2007, we and Perseus entered into a letter agreement regarding Perseuss board representation
rights (the Letter Agreement). Pursuant to the Letter Agreement, (i) Perseus acknowledged that it had waived the requirement that we reduce the size of our board of directors to five, (ii) Perseus and we agreed to set the size
of the board at seven, and (iii) Perseus agreed to name two directors, rather than a majority, and we agreed to permit Perseus to send an observer to meetings of our board of directors. Perseus retains its rights to, at any time,
(a) require us to reduce the size of its board of directors to five and (b) name additional members of the board of directors to give Perseus representation on our board of directors equal to at least its percentage ownership in our
company, assuming exercise of its warrants and conversion of the Subsequent Convertible Note.

We have undertaken in the Perseus Agreement to use
commercially reasonable efforts to sell our Proton subsidiary, and we have engaged an investment bank to assist us in this process. We are in the process of providing information about Proton to prospective buyers. We expect to make a decision about
the sale of Proton, subject to Board and possibly shareholder approval, by the end of the year. Perseus is entitled to have an observer at our board meetings and also has the right to approve specified significant actions by us. We have also granted
to Perseus a right of first refusal to fund any future financing transactions we might pursue, with limited exceptions. In addition, we have agreed to register for resale all the shares issuable to Perseus. Refer to Note 4 for additional information
on the Initial Note and Subsequent Convertible Note.

We incurred significant operating losses and negative cash flows from operating activities in each of
the last three years and during the nine months ended September 30, 2007. Such circumstances raise substantial doubt about our ability to continue as a going concern even with the proceeds of the Perseus transaction. The realization of assets
and the satisfaction of liabilities in the normal course of business are dependent on, among other things, our ability to raise additional capital, sell the Proton subsidiary and certain operating assets, reduce our operating losses and operate
profitably, to generate cash flows from operations, as well as our ability to maintain credit under its current debt agreements adequate to conduct its business. If we became unable to continue as a going concern, we would have to reorganize or
liquidate our assets and we might receive significantly less than the value at which they are carried on our condensed consolidated financial statements.

While we recently obtained funding from Perseus as described above, we do not expect that our current capital resources will be sufficient to operate our business beyond the first quarter of 2008, and we expect that we will need to raise
additional capital no later than the end of the first quarter of 2008 to continue to operate. Our ability to continue our operations will be subject to a number of factors that pose additional risk and uncertainty, including:



| |  |  | Our ability to secure additional capital funding on terms acceptable to us or at all. Our ability to obtain additional funding will be subject to a number of
factors, including market conditions, our operating performance, the consent of our existing lenders and investor sentiment. These factors may make the timing, amount, terms and conditions of additional funding unattractive. If we issue additional
equity securities, existing stockholders may experience dilution or be subordinated to any rights, preferences or privileges granted to the new equity holders.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to enter into new contracts and receive sales orders that will generate contract, product and service revenues.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to achieve gross margins sufficient to cover our operating expenses and generate positive cash flow.
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to control operating expenses.
| | - |  | ------------------------------------------



5



---

##### Table of Contents

| |  |  | Our ability to complete a sale/leaseback transaction of our Wallingford, Connecticut facility and the willingness of Perseus to allow us to use the proceeds of such
a sale to fund our operations.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The potential acceleration of debt service payments by one or more of our lenders as the result of subjective acceleration clauses in our debt agreements.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------

2. BASIS OF PRESENTATION

The
condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries after elimination of significant intercompany transactions.

The condensed consolidated financial statements as of September 30, 2007 and for the three months and nine months ended September 30, 2007 and 2006 are unaudited. In the opinion of management, all
adjustments, which consist solely of normal recurring adjustments, necessary to present fairly in accordance with accounting principles generally accepted in the United States of America, the financial position, results of operations and cash flows
for all periods presented, have been made. The results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the full year.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United
States of America have been condensed or omitted. These condensed consolidated financial statements should be read in conjunction with the Companys audited financial statements and notes thereto included in the Companys Annual Report on
Form 10-K filed with the SEC on March 13, 2007.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting
periods. During the quarter and nine months ended September 30, 2007, our estimated costs related to one contract accounted for on a percent complete basis increased by approximately $1.0 million and $2.2 million, respectively.

Long-Lived Assets

We evaluate potential impairment of long-lived
assets and long-lived assets to be disposed of in accordance with SFAS No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets. SFAS No. 144 establishes procedures for the review of recoverability and measurement of
impairment, if necessary, of long-lived assets held and used by an entity. SFAS No. 144 requires that those assets be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be fully
recoverable. We would be required to recognize an impairment loss if the carrying amount of long-lived assets is not recoverable based on their undiscounted cash flows. The measurement of impairment loss is then based on the difference between the
carrying amount and the fair value of the asset. If actual results are not consistent with our assumptions and judgments used in estimating future cash flows and asset fair values, we may be exposed to additional impairment losses that could be
material to our results of operations.

As a result of our agreement to use commercially reasonable efforts to sell our Proton subsidiary, and since we
have engaged an investment bank to assist us in this process, we have assessed the carrying value of Protons long-lived assets for potential impairment. During the quarter ended September 30, 2007 we conducted an impairment review of its
long-lived assets and concluded there was no impairment on the basis that the carrying amount of its long-lived assets will be recoverable from the asset groupings expected undiscounted cash flows. This analysis requires us to make assumptions
and estimates regarding industry economic factors and the profitability of future business strategies. It is our policy to conduct impairment testing based on our current business strategy in light of present industry and economic conditions, as
well as future expectations. Changes in our assumptions and industry economic conditions may result in future changes to our assessment.

Intangible
Assets

Intangible assets subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying
amount of such assets may not be recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Measurement of any impairment loss for
intangible assets subject to amortization is based on the amount the carrying value exceeds the fair value of the asset.

We acquired the operations and
maintenance business of Crown Engineering and Construction Inc. (Crown) in April, 2006. In the third quarter of 2007, we determined that there were indications of impairment of the intangible assets related to the Crown acquisition
because of our intention to find a buyer for our service business. As a result of our impairment analysis, we determined that the value associated with the projected cash flows of acquired service contracts and non-compete agreements has decreased
resulting in the recognition of an impairment loss of approximately $1.1 million in the third quarter of 2007. The impaired intangible assets are reported in the Northern segment.

Comprehensive Loss

Comprehensive loss consists of net loss and other gains and losses affecting stockholders
equity that are not the result of transactions with owners. The following tables set forth the components of comprehensive loss resulting from our investment activities:



6



---

##### Table of Contents

|                                                                                                  |  |                                  |             |   |      |   |             |  
|------------------------------------------------------------------------------------------------- |  | -------------------------------- | ----------- | - | ---- | - | ----------- | -
|                                                                                                  |  | Three Months Ended September 30, |            
|                                                                                                  |  | 2007                             |             |   | 2006 |  
|Net loss                                                                                          |  | $                                | (15,244,347 | ) |      | $ | (6,315,254  | )
|Unrealized gains on marketable securities arising in the period                                   |  |                                  |            |   |      |   | 41,434      |  
|                                                                                                  |  |                                  |             |   |      |   |             |  
|Total comprehensive loss                                                                          |  | $                                | (15,244,347 | ) |      | $ | (6,273,820  | )
|                                                                                                  |  |                                  |             |   |      |   |             |  
|                                                                                                  | 
|                                                                                                  |  | Nine Months Ended September 30,  |            
|                                                                                                  |  | 2007                             |             |   | 2006 |  
|Net loss                                                                                          |  | $                                | (40,162,666 | ) |      | $ | (20,196,516 | )
|Reclassification adjustments for loss from the sale of marketable securities included in net loss |  |                                  | 2,175       |   |      |   | 13,688      |  
|Unrealized gains on marketable securities arising in the period                                   |  |                                  | 6,940       |   |      |   | 37,474      |  
|                                                                                                  |  |                                  |             |   |      |   |             |  
|Total comprehensive loss                                                                          |  | $                                | (40,153,551 | ) |      | $ | (20,145,354 | )
|                                                                                                  |  |                                  |             |   |      |   |             |  

Concentration of Risks

Concentration of credit risk exists with respect to cash and cash equivalents, restricted cash, accounts receivable, revenue and vendors. The Company maintains its cash and cash equivalents with high quality financial institutions. At
times, amounts may exceed federally insured deposit limits. In addition, certain critical product components are only available from one source and are subject to the sources proprietary rights.

For the quarters ended September 30, 2007 and 2006, sales to the Companys five largest customers accounted for approximately 37% and 40% of total revenues,
respectively. For the nine months ended September 30, 2007 and 2006, sales to the Companys five largest customers accounted for approximately 35% and 28% of total revenues, respectively. For the nine months ended September 30, 2007,
one customer accounted for approximately 11% of total revenue.

At September 30, 2007 and December 31, 2006, accounts receivable from
government-sponsored agencies accounted for approximately 11% and 8% of total Company accounts receivable, respectively. At September 30, 2007 and December 31, 2006, accounts receivable from international customers accounted for
approximately 27% and 35% of total Company accounts receivable, respectively. At September 30, 2007 and December 31, 2006 accounts receivable from our five largest customers accounted for approximately 45% and 39% of total accounts
receivables, respectively. One customer accounted for approximately 15% of total accounts receivable at September 30, 2007.

3. RECENT ACCOUNTING
GUIDANCE

The Company adopted the provisions of FASB Interpretation No. 48 Accounting for Uncertainty in Income Taxes (an interpretation of
FASB Statement No. 109) on January 1, 2007. As a result of the implementation of FIN 48, the Company performed a comprehensive review of any uncertain tax positions in accordance with recognition standards established by
FIN 48. In this regard, an uncertain tax position represents the Companys expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax
expense for financial reporting purposes. As a result of this review, the Company believes it has no uncertain tax positions and, accordingly, did not record any charges.



7



---

##### Table of Contents

The Company will recognize accrued interest and penalties related to uncertain tax positions in income tax expense. As of
January 1, 2007, the Company did not have any tax-related interest or penalties. The Company files income tax returns in the U.S. federal and various state jurisdictions. The Company is not currently under examination by The Internal
Revenue Service (IRS) or any other state jurisdictions. The tax years 2003-2005 remain subject to examination.

In February 2007, FASB issued SFAS No, 159,
The Fair Value Option for Financial Assets and Financial Liabilities-including an amendment of FASB Statement No.115 (SFAS 159). SFAS 159 expands the use of fair value accounting but does not affect existing standards which
require assets and liabilities to be carried at fair value. Under SFAS 159, a company may elect to use fair value to measure accounts and loans receivable, available-for-sale and held-to-maturity securities, equity method investments, accounts
payable, guarantees, issued debt and other eligible financial instruments. SFAS 159 is effective for fiscal years beginning after November 15, 2007. We are currently evaluating the potential impact of this statement.

In September 2006, the FASB issued Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157) which is
effective for fiscal years beginning after November 15, 2007 and for interim periods within those years. This statement defines fair value, establishes a framework for measuring fair value and expands the related disclosure requirements. Since
its initial issuance, the FASB has received considerable input regarding the implications of the standard on the valuation of non-financial assets and liabilities. As a result, the FASB is proposing to amend the scope of SFAS 157 to exclude its
application to lease accounting and clarify its disclosure requirements relative to pension and other post-retirement employee benefit assets and liabilities. In light of the changes being proposed and the underlying implications of the overall
pronouncement, we are currently evaluating its potential impact to our financial statements and results of operations.

4. DEBT

The Companys debt, excluding capital lease obligations, consists of the following:



|                                                                                     |  |                    |           |                   |   |          
|------------------------------------------------------------------------------------ |  | ------------------ | --------- | ----------------- | - | ---------
|                                                                                     |  | September 30, 2007 |           | December 31, 2006
|Webster Bank Wallingford, Connecticut facility mortgage                              |  | $                  |          |                   | $ | 5,342,182
|Perseus Senior Secured Convertible Promissory Note, net of $13,741,935 debt discount |  |                    | 1,258,065 |                   |   |         
|VEDA Barre, Vermont facility mortgage                                                |  |                    | 619,451   |                   |   | 638,861  
|Waring Investments, Inc. Barre, Vermont facility mortgage                            |  |                    | 857,431   |                   |   | 883,734  
|Merchants Bank equipment loan                                                        |  |                    |          |                   |   | 55,094   
|                                                                                     |  |                    |           |                   |   |          
|                                                                                     |  | $                  | 2,734,947 |                   | $ | 6,919,871
|Less current portion                                                                 |  |                    | 2,734,947 |                   |   | 1,379,460
|                                                                                     |  |                    |           |                   |   |          
|Long-term debt                                                                       |  |                    |          |                   | $ | 5,540,411
|                                                                                     |  |                    |           |                   |   |          

Loan with Webster Bank

During the second quarter of 2007, the Company paid the Webster Bank mortgage in full in the amount of $5,192,672.

Perseus Senior Secured
Promissory Note (Initial Note)

On June 1, 2007, pursuant to the terms of the Perseus Agreement, the Company closed on a $12.5 million loan by
Perseus to the Company. In connection with this loan, the Company executed the Initial Note and



8



---

##### Table of Contents

issued to Perseus the Initial Warrant. The Initial Note bore interest at a rate of 12.5% per annum, compounded quarterly, payable in cash or in kind at
the Companys discretion, and was due in full on March 1, 2008. As a result, the Company recorded approximately $1.2 million and $1.8 million of total interest expense related to the Initial Note for the three and nine months ended
September 30, 2007, respectively. The loan was secured by a security interest on all of the Companys assets and those of its material subsidiaries.

The Initial Warrant is exercisable for five years and gives Perseus the right to purchase up to 7,954,536 shares of the Companys common stock at an exercise price of $0.80 per share. The Company accounted for the Initial Note pursuant
to APB 14, Accounting for Convertible Debt and Debt Issued with Stock Purchase Warrants. The fair value of the Initial Warrant was determined to be approximately $3.7 million. The Company used the following assumptions to estimate
fair value of the warrants: expected term of five years; expected volatility of 80.8%; risk free rate of 4.92%; and no dividend yield. Accordingly, based on the relative fair values of the debt and the warrant at the time of issuance the Company
allocated approximately $2.9 million of the $12.5 million proceeds to the Initial Warrant. The amount attributed to the Initial Warrant resulted in a discount on the Initial Note. The debt discount was being amortized over the term of the
Initial Note and accordingly the Company recognized approximately $571,000 and $893,000 of debt discount costs within interest expense related to this amortization during the three and nine months ended September 30, 2007,
respectively. Additionally, the Company incurred approximately $1.8 million of debt issuance costs associated with this financing which was being amortized over the life of the debt and recorded approximately $358,000 and $559,000 of debt
issuance costs within interest expense during the three and nine months ended September 30, 2007, respectively.

On August 24, 2007, the Company
repaid and cancelled the Initial Note in connection with the issuance of the Subsequent Convertible Note. The Company accounted for this exchange of notes under EITF 96-19, Debtors Accounting for a Modification or Exchange of Debt
Instruments and EITF 06-06, Debtors Accounting for a Modification (or Exchange) of Convertible Debt Instruments. The exchange resulted in extinguishment accounting because the Subsequent Convertible Note contained a
substantial conversion feature not contained within the Initial Note. For the three and nine months ended September 30, 2007, the Company recognized a loss on extinguishment of approximately $3.3 million which represented the remaining
unamortized balance of debt discount of $2.0 million and deferred financing costs of $1.3 million, respectively, with respect to the Initial Note.

The
calculation of the loss at the time of exchange is as follows:



|                         |  |        |   |  |   |        |   |  |   |       
|------------------------ |  | ------ | - |  | - | ------ | - |  | - | ------
|Initial Note, at par     |  |        |   |  | $ | 12,500 |   |  |   |       
|                         |  |        |  
|Debt discount            |  | (2,897 | ) |  |   |        |   |  |   |       
|Accumulated amortization |  | 893    |   |  |   |        |   |  |   |       
|                         |  |        |   |  |   |        |   |  |   |       
|                         |  |        |   |  |   | (2,004 | ) |  |   |       
|Debt issuance costs      |  | (1,814 | ) |  |   |        |   |  |   |       
|Accumulated amortization |  | 559    |   |  |   |        |   |  |   |       
|                         |  |        |   |  |   |        |   |  |   |       
|                         |  |        |   |  |   | (1,255 | ) |  |   |       
|                         |  |        |   |  |   |        |   |  |   |       
|Initial Note, net        |  |        |   |  |   |        |   |  | $ | 9,241 
|Initial Note repaid      |  |        |   |  |   |        |   |  |   | 12,500
|                         |  |        |   |  |   |        |   |  |   |       
|Loss on extinguishment   |  |        |   |  |   |        |   |  | $ | 3,259 
|                         |  |        |   |  |   |        |   |  |   |       



9



---

##### Table of Contents

Perseus Senior Secured Convertible Promissory Note (Subsequent Convertible Note)

On August 24, 2007, the Company repaid the $12.5 million Initial Note and accrued interest of $0.4 million. In connection with this loan, the Initial Note was
cancelled, and the Company executed the Subsequent Convertible Note, and received additional cash of approximately $2.1 million after paying the Initial Note and issued to Perseus the Subsequent Warrant. The Subsequent Convertible Note has an
original principal amount of $15.0 million, bears interest at a rate of 12.5% per annum, compounded quarterly, and is due in full on November 30, 2008 or earlier upon an event of default, a change of control of the Company or the
liquidation or dissolution of the Company. As a result, the Company recorded approximately $1.5 million of total interest expense related to the Subsequent Convertible Note for the three and nine months ended September 30, 2007. The Company may
choose to pay the interest in cash or in kind by the issuance of additional senior secured convertible promissory notes, or the Additional Convertible Notes. Assuming that (a) the Company pays all interest expense estimated to be $2.3 million
in kind and (b) Perseus fully converts the Subsequent Convertible Note and all of the Additional Convertible Notes, Perseus would receive 30,779,675 shares of the Companys common stock.

The Subsequent Convertible Note is secured by a security interest on all of the Companys assets and those of its material subsidiaries. The Subsequent Warrant is
exercisable for five years and gives Perseus the right to purchase up to 34,989,629 shares of the Companys common stock at exercise prices ranging from $0.80 to $3.00 per share. The Company accounted for the Subsequent Convertible Note
pursuant to APB 14, Accounting for Convertible Debt and Debt Issued with Stock Purchase Warrants. The fair value of the Subsequent Warrant was determined to be approximately $13.2 million. The Company used the following assumptions
to estimate fair value of the Subsequent Warrants: expected term of five years; expected volatility of 81.4%; risk free rate of 4.42%; and no dividend yield. Accordingly, based on the relative fair values of the debt and the warrant at the time of
issuance the Company allocated approximately $7.0 million of the $15.0 million proceeds to the Subsequent Warrant. The amount attributed to the Subsequent Warrant results in a discount on the Subsequent Convertible Note. The debt discount is
amortized over the term of the Subsequent Convertible Note and accordingly the Company recognized approximately $590,000 as interest expense related to this amortization during the three and nine months ended September 30,
2007. Additionally, the Company incurred approximately $0.2 million of debt issuance costs associated with this Subsequent Convertible Note financing which is being amortized over the life of the debt and recorded approximately $16,000 as
interest expense during the three and nine months ended September 30, 2007.

At Perseuss election, the principal and any unpaid interest under
the Subsequent Convertible Note are convertible into shares of the Companys common stock at a conversion price of $0.57 per share compared to the Companys closing stock price of $0.74 at time the Subsequent Convertible Note was issued.
As a result, the Subsequent Convertible Note contains a beneficial conversion feature. The Company accounted for the beneficial conversion feature under EITF 00-27, Application of Issue No. 98-5, Accounting for Convertible Securities with
Beneficial Conversion Features, to Certain Convertible Instruments. After consideration of the allocation of the proceeds to the Subsequent Convertible Note and Subsequent Warrant in accordance with APB 14, the Company calculated the
Subsequent Convertible Note has an effective conversion price of $0.30 per share. This resulted in a beneficial conversion of $0.44 per share or approximately $11.5 million, however, the Company recorded approximately $8.0 million as a beneficial
conversion feature which represented the remaining debt proceeds available for such allocation. The beneficial conversion feature was recorded as a debt discount and an increase additional paid in capital. The debt discount is amortized over the
term of the Subsequent Convertible Note and accordingly the Company recognized approximately $668,000 within interest expense related to this amortization during the three and nine months ended September 30, 2007.

Classification of Debt

The Companys Vermont facility mortgage
with Waring Investments, Inc. (Waring) contains a material adverse change clause which allows Waring, at its option, to declare the loan to be in default and immediately payable if there has been a material adverse change in our
financial condition. The Companys loan agreements with Perseus and the Vermont Economic Development Authority (VEDA) each contain cross-default provisions which provide that any event of default in any secured borrowing would
result in the Perseus and VEDA loans being in default and immediately payable. Accordingly, the Waring loan, and the Perseus and VEDA loans with cross-default provisions, have been classified as short term. None of our lenders have accelerated our
scheduled loan payments as a result of these provisions.



10



---

##### Table of Contents

5. INVENTORIES AND COSTS AND BILLINGS ON CONTRACTS IN PROGRESS

Inventories are stated at the lower of cost or market value. Cost is determined by the average cost method.



|                |  |                   |           |                  |   |          
|--------------- |  | ----------------- | --------- | ---------------- | - | ---------
|                |  | September 30,2007 |           | December 31,2006
|Raw materials   |  | $                 | 3,073,962 |                  | $ | 3,732,561
|Work in process |  |                   | 2,420,903 |                  |   | 923,435  
|Finished goods  |  |                   | 239,396   |                  |   | 128,443  
|                |  |                   |           |                  |   |          
|                |  | $                 | 5,734,261 |                  | $ | 4,784,439
|                |  |                   |           |                  |   |          

The above inventory amounts are shown net of reserves for obsolescence and shrinkage of $674,214 and $493,951 at
September 30, 2007 and December 31, 2006, respectively.

The information on costs and billings on contracts in progress accounted for under the
percentage-of-completion method is as follows:



|                                                               |  |                   |            |   |                  |   |            |  
|-------------------------------------------------------------- |  | ----------------- | ---------- | - | ---------------- | - | ---------- | -
|                                                               |  | September 30,2007 |            |   | December 31,2006 |  
|Costs incurred and estimated earnings on contracts in progress |  | $                 | 34,692,098 |   |                  | $ | 20,969,341 |  
|Less: billings to date                                         |  |                   | 30,618,309 |   |                  |   | 18,590,756 |  
|                                                               |  |                   |            |   |                  |   |            |  
|Costs and earnings in excess of billings, net                  |  | $                 | 4,073,789  |   |                  | $ | 2,378,585  |  
|                                                               |  |                   |            |   |                  |   |            |  
|                                                               |  |                  
|                                                               |  | September 30,2007 |            |   | December 31,2006 |  
|Costs in excess of billings on contracts in progress           |  | $                 | 4,317,732  |   |                  | $ | 4,102,573  |  
|Billings in excess of costs on contracts in progress           |  |                   | (243,943   | ) |                  |   | (1,723,988 | )
|                                                               |  |                   |            |   |                  |   |            |  
|Costs and earnings in excess of billings, net                  |  | $                 | 4,073,789  |   |                  | $ | 2,378,585  |  
|                                                               |  |                   |            |   |                  |   |            |  



11



---

##### Table of Contents

6. ACCRUED EXPENSES

Accrued expenses consist of the following:



|                       |  |                    |           |                   |   |          
|---------------------- |  | ------------------ | --------- | ----------------- | - | ---------
|                       |  | September 30, 2007 |           | December 31, 2006
|Accrued warranty       |  | $                  | 612,889   |                   | $ | 813,445  
|Accrued purchases      |  |                    | 187,450   |                   |   | 455,099  
|Accrued project losses |  |                    | 1,561,077 |                   |   | 84,373   
|Other accruals         |  |                    | 725,870   |                   |   | 682,682  
|                       |  |                    |           |                   |   |          
|                       |  | $                  | 3,087,286 |                   | $ | 2,035,599
|                       |  |                    |           |                   |   |          

7. LOSS PER SHARE

Basic EPS is calculated by dividing income or loss attributable to common stockholders by the weighted average common shares outstanding. Diluted EPS is calculated by adjusting weighted average common shares outstanding by assuming
conversion of all potentially dilutive shares. In periods where a net loss is recorded, no effect is given to potentially dilutive securities because the effect would be antidilutive. Accordingly, no effect has been given to the assumed exercise of
611,818 and 2,117,943 common stock options outstanding for the quarters ended September 30, 2007 and 2006, respectively, nor the assumed exercise of 23,144,165 and 528,284 common stock warrants outstanding for the quarters ended
September 30, 2007 and 2006, respectively, since the effect would be antidilutive for the reporting periods.

8. STOCK-BASED COMPENSATION

On January 1, 2006, the Company adopted SFAS 123(R) using the modified prospective transition method. SFAS 123(R) requires the measurement and
recognition of compensation expense for all stock-based awards made to the Companys employees and directors including employee stock options, employee stock purchase plans, and other stock-based awards based on estimated fair values. As a
result, for the three months and nine months ended September 30, 2007 and 2006, our results of operations reflect compensation expense for new stock options and awards granted and vested under our stock incentive plans, and the unvested portion
of previous stock option and award grants which vested during the three months and nine months ended September 30, 2007 and 2006. Amounts recognized in the financial statements related to stock-based compensation were as follows:



12



---

##### Table of Contents

|                                    |  |                                  |         |                                 |   |           |  |      |           |  |   |          
|----------------------------------- |  | -------------------------------- | ------- | ------------------------------- | - | --------- |  | ---- | --------- |  | - | ---------
|                                    |  | Three Months Ended September 30, |         | Nine Months Ended September 30,
|                                    |  | 2007                             |         | 2006                            |   | 2007      |  | 2006
|Selling, General and Administrative |  | $                                | 395,000 |                                 | $ | 878,000   |  | $    | 1,265,000 |  | $ | 4,074,000
|                                    |  |                                  |         |                                
|Research and Development            |  |                                  | 33,000  |                                 |   | 55,000    |  |      | 82,000    |  |   | 159,000  
|                                    |  |                                  |         |                                
|Cost of revenue                     |  |                                  | 45,000  |                                 |   | 87,000    |  |      | 96,000    |  |   | 209,000  
|                                    |  |                                  |         |                                 |   |           |  |      |           |  |   |          
|Total non-cash stock compensation   |  | $                                | 473,000 |                                 | $ | 1,020,000 |  | $    | 1,443,000 |  | $ | 4,442,000
|                                    |  |                                  |         |                                 |   |           |  |      |           |  |   |          

CEO Awards

In
the first quarter of 2006 the Company granted its CEO, Mr. Schwallie 100,000 shares of restricted common stock at a price of $0.01 per share. The market value of these shares at the time of grant was $8.84 and vested one year from the date of
grant. In addition, the Company granted Mr. Schwallie 28,280 shares of restricted common stock at a price of $0.01 per share. The fair market value of these shares at the date of grant was $8.84 and vested immediately. Additionally, in
connection with the commencement of Mr. Schwallies employment, the Company granted Mr. Schwallie an option to purchase 500,000 shares of common stock at an exercise price of $8.84 per share. The option vests as to 25% of the original
number of shares on the first anniversary of the grant date and 25% of the original number of shares at the end of each successive year following the first anniversary of the grant date until the fourth anniversary of the grant date. The option
agreement also contained a termination of relationship clause resulting in accelerated vesting during the first year of employment. As a result of these restricted stock and stock option awards, the Company recorded non-cash stock-based compensation
charges of approximately $147,000 and $368,000 for the three months ended September 30, 2007 and 2006, respectively, as well as $442,000 and $2,106,000 for the nine months ended September 30, 2007 and 2006, respectively.

Mr. Schwallie also had the ability to earn up to 300,000 shares of restricted stock, contingent upon achievement of various company wide performance goals,
including certain revenue, cash flow and gross margin targets at various intervals through June 30, 2008. The shares subject to this agreement vest immediately upon the achievement of these performance goals. It is no longer possible to meet
the goals for 200,000 of these shares, and the Company determined that as of September 30, 2007 it was not probable that the remaining 100,000 restricted shares would be issued. Therefore, no compensation cost has yet been recognized. If a
change in control event, as described in our 2003 Stock Incentive Plan and meeting parameters to be determined by our board of directors, occurs, and Mr. Schwallie is still employed by the Company, the remaining restricted shares would be
granted to Mr. Schwallie unless it is no longer possible for the remaining target to be met.

On October 31, 2007 Mr. Schwallie resigned as the
companys chief executive officer.

Director Compensation

In January 2007, the Company granted a total of 75,040 shares of restricted common stock to its non-employee directors at a price of $3.63 per share, all shares vesting monthly over a one-year period. In May 2007, the Company granted 29,263
shares of restricted stock to Mr. Bernard H. Cherry in connection with his appointment as chairman of the board of directors. In August 2007, the Company granted 26,746 shares of restricted stock to Mr. John Fox and Mr. Michael
Miller in connection with their appointment to the board of directors. Mr. Fox and Mr. Miller were nominated by Perseus in accordance within its rights under the Perseus Agreement. Each of them hold these shares of restricted common stock as a
nominee of Perseus and disclaims beneficial ownership thereof, except to the extent he has any pecuniary interest in these shares. The non-cash stock compensation cost associated with these three restricted common stock grants of approximately
$77,000 and $214,000 for the three months and nine months ended September 30, 2007, respectively, is reflected in selling, general and administrative expenses.



13



---

##### Table of Contents

9. RESTRUCTURING AND RELATED COSTS

In January 2007, the Company announced that it was combining the Northern and Proton businesses under Distributed Energy. This change was aimed at reducing costs and strengthening systems sales, engineering,
production, service, and technology development. The Company also announced plans to exit the Waitsfield, Vermont facility and consolidate all of the Northern operations in the Barre, Vermont facility resulting in the elimination of about 60 jobs,
or 20% of the workforce. In May 2007, the Company completed another reduction of its workforce resulting in the elimination of approximately 25 additional jobs.

As a result, during the three months and nine months ended September 30, 2007, the Company recorded severance charges of approximately $0 and $702,000 respectively. These costs are accounted for under SFAS 146, Accounting for
Costs Associated with Exit or Disposal Activities, and were included as a charge to the results of operations for the three months and nine months ended September 30, 2007. Any subsequent changes to the estimates of executing the
currently approved plans of restructuring will be reflected in current results of operations.

The following table summarizes the severance provision, the
severance amount paid and remaining severance costs for the 2007 restructuring costs by segment:



|                              |  |          |          |   |        |   |         |       |  |   |         |   |  |   |          |  
|----------------------------- |  | -------- | -------- | - | ------ | - | ------- | ----- |  | - | ------- | - |  | - | -------- | -
|                              |  | Northern |          |   | Proton |   |         | Other |  |   | Total   |  
|Provision                     |  | $        | 559,803  |   |        | $ | 78,433  |       |  | $ | 63,652  |   |  | $ | 701,888  |  
|Amounts paid                  |  |          | (559,803 | ) |        |   | (78,433 | )     |  |   | (63,652 | ) |  |   | (701,888 | )
|                              |  |          |          |   |        |   |         |       |  |   |         |   |  |   |          |  
|Balance at September 30, 2007 |  | $        |         |   |        | $ |        |       |  | $ |        |   |  | $ |         |  
|                              |  |          |          |   |        |   |         |       |  |   |         |   |  |   |          |  

As a result of its decision to exit the Waitsfield facility and consolidate its Northern operations in Barre
Vermont by June 30, 2007, the Company revised the estimated useful life and estimated residual value of the Waitsfield facility and accelerated the related depreciation charges. Therefore, the Company recorded additional depreciation expense of
approximately $2.4 million, respectively, for the nine months ended September 30, 2007 to reduce the facility to its estimated net residual value of approximately $2.0 million. These depreciation charges are included in selling, general and
administrative expenses.

10. STOCKHOLDERS EQUITY

Changes in stockholders equity for the nine months ended September 30, 2007 were as follows (in thousands):



|                                                           |  |   |         |  
|---------------------------------------------------------- |  | - | ------- | -
|Balance at December 31, 2006                               |  | $ | 46,740  |  
|Net loss                                                   |  |   | (40,163 | )
|Issuance of common stock from exercise of stock options    |  |   | 195     |  
|Issuance of common stock from ESPP program exercises       |  |   | 97      |  
|Issuance of warrants                                       |  |   | 16,318  |  
|Beneficial conversion feature embedded in convertible debt |  |   | 7,968   |  
|Stock based compensation                                   |  |   | 1,443   |  
|Change in unrealized loss on marketable securities         |  |   | 9       |  
|                                                           |  |   |         |  
|Balance at September 30, 2007                              |  | $ | 32,607  |  
|                                                           |  |   |         |  



14



---

##### Table of Contents

11. JOINT VENTURE

On
March 7, 2007, the Company entered into a Joint Venture Agreement with Morgan Stanley Wind LLC (MSW), a subsidiary of Morgan Stanley. This agreement establishes a framework for the Company and Morgan Stanley to work together to
develop, finance, own and operate projects utilizing waste-to-energy technology, combined-heat-and-power technology and other advanced energy technologies. The agreement provides MSW the exclusive right, but not the obligation to provide financing
for projects. No projects subject to the terms of the joint venture agreement have been entered into to date. In connection with the execution of the Joint Venture Agreement and as an inducement for Morgan Stanley to enter into the agreement, the
Company issued to Morgan Stanley on March 7, 2007 a Common Stock Purchase Warrant entitling Morgan Stanley to purchase up to 10% of the Companys common stock outstanding from time to time, including shares of common stock issuable upon
the exercise of stock options, warrants and other convertible or exchangeable securities. The warrant may only be exercised in cash.

The warrant is
immediately vested as to 8% of the Companys common stock outstanding from time to time, at a purchase price equal to the lower of $2.25 per share or 80% of the fair market value of the common stock on the date of exercise, but in no event less
than $2.10 per share. This 8% tranche of the warrant is exercisable until the second anniversary of the grant date, except that the exercise period will be extended for an additional year if the fair market value of our common stock on such second
anniversary is not at least $2.25.

The warrant will vest in four subsequent tranches, each as to 0.5% of the Companys common stock outstanding from
time to time, at such time as MSW has funded (1) $21.25 million, (2) $42.5 million, (3) $63.75 million and (4) $85 million in the aggregate to projects developed under the Joint Venture Agreement or we have entered into
engineering, procurement and construction (EPC) or operation and maintenance (O&M) contracts with projects sourced by MSW with aggregate values equal to those thresholds. Each of these subsequent tranches will have a
purchase price equal to the lower of 80% of the fair market value of our common stock on the vesting date or 80% of the fair market value of the common stock on the date of exercise, but in no event less than $2.10 per share. Each subsequent tranche
will be exercisable until the second anniversary of the vesting date of that tranche, except that the exercise period will be extended for an additional year if the fair market value of our common stock on such second anniversary is not at least
equal to the fair market value on the vesting date.

The Company estimated the fair value of the warrant issued under this arrangement using a binomial
lattice model. The fair value of the first tranche of the warrants at March 7, 2007 was determined to be $1.51 per share. As a result the company recorded a non-cash charge of approximately $5,841,000 associated with 3,868,524 shares issuable
under this first tranche during the three months ended March 31, 2007. The fair value of the shares issuable upon exercise of the warrant that become available in the four subsequent tranches will be recorded when each respective funding level
is achieved.

In June 2007, as a result of the issuance of the Initial Warrant, the number of shares issuable upon the exercise of the warrants issued
under the first tranche to MSW was increased by 686,787 shares. The fair value of these additional shares was determined to be $0.17 per share which resulted in a non-cash charge of approximately $119,000 during the quarter ended June 30, 2007.

In August 2007, as a result of the issuance of the Subsequent Convertible Note and the Subsequent Warrant, the number of shares issuable upon the exercise
of the warrants issued under the first tranche to MSW was increased by 3,074,714 shares. The fair value of these additional shares was determined to be $0.14 per share which resulted in a non-cash charge of approximately $427,000 during the quarter
ended September 30, 2007.



15



---

##### Table of Contents

12. COMMITMENTS AND CONTINGENCIES

Contracts

The Company has agreements with two customers providing for construction of power systems that
utilize Stirling engine technology. On February 16, 2007, the Company was notified that the manufacturer of these engines, STM Power, Inc., (STM) had ceased operations.

The Company has informed its two customers that, due to STMs cessation of operations, it is likely that it would be unable to complete and maintain these power systems as planned. As of September 30, 2007
the Company has recorded estimated project losses of approximately $1.1 million, which represents its current best estimate of the costs required to resolve or settle the two contracts. The range of possible loss for the two matters is estimated to
be from $0.4 million to $1.8 million. Accordingly, should adverse resolutions related to these contracts occur, the Company estimates that it could incur additional losses beyond those currently recorded of approximately $0.7 million. On
October 18, 2007, one of the two customers commenced suit in the Superior Court of New Jersey seeking damages in the amount of $4.0 million that allegedly resulted from a contract to install a power system at their facility. We believe that the
amount of damages being sought by the plaintiff is without merit. The additional costs to the Company of defending any litigation or other proceedings, even if resolved in the Companys favor, could be substantial. The Company believes a
portion of these losses may be covered by its insurance policies; however, the losses have been recorded without any assumed insurance proceeds.

Warranty

The changes in the carrying amount of warranties for the nine months ended September 30, 2007 and 2006
are as follows:



|                            |  |      |          |   |      |   |          |  
|--------------------------- |  | ---- | -------- | - | ---- | - | -------- | -
|                            |  | 2007 |          |   | 2006 |  
|Balance as of December 31:  |  | $    | 813,445  |   |      | $ | 417,693  |  
|Warranties issued in period |  |      | 493,875  |   |      |   | 649,129  |  
|Adjustments to provision    |  |      | (69,004  | ) |      |   | 76,521   |  
|Warranty claims             |  |      | (625,427 | ) |      |   | (729,174 | )
|                            |  |      |          |   |      |   |          |  
|Balance as of September 30: |  | $    | 612,889  |   |      | $ | 414,169  |  
|                            |  |      |          |   |      |   |          |  

Sales and Use Tax Relief Program Recapture

In connection with the construction of its Wallingford facility, Proton entered into a Sales and Use Tax Relief Program Implementing Agreement (the Wallingford
Agreement) with the Connecticut Development Authority (the Authority). The Wallingford Agreement contains certain recapture clauses for relocation, early disposition/abandonment and employment threshold. The recapture clauses for
relocation and early disposition/abandonment expire October 15, 2010; whereby the Company could be required to pay back a portion of the sales tax relief received. The employment threshold clause was subject to review by the Authority in the
quarter ended December 31, 2006. The aggregate maximum dollar amount of all recaptured tax benefits and penalties payable by Proton to the Authority under the Wallingford Agreement shall not exceed $419,250 (the maximum sales and use tax
benefit possible under the terms of the Wallingford Agreement, plus a 7.5% penalty). Proton was required under the Wallingford Agreement to place $419,250 in escrow related to these recapture clauses. The Company did not meet the employment
threshold recapture clause by the compliance date of December 31, 2006 and accordingly had accrued $152,000 related to this matter. The Company paid $155,000 to the Authority in May 2007. As a result of the payment, the Authority agreed to
reduce the required escrow amount to $291,000 which is included within long term restricted cash at September 30, 2007. At this time all the other conditions that would require payment are remote and the Company has not accrued any additional
liability.



16



---

##### Table of Contents

State Income, Sales, Property and Franchise Tax Accruals

The Company has recorded, within current liabilities, tax accruals of approximately $375,000 and $348,000 for certain state income and sales tax contingencies for which
there may be exposure at September 30, 2007 and December 31, 2006, respectively. The determination of the amount of the accrual requires significant judgment. The assumptions used in determining the estimate of the accrual is subject to
change and the actual amount could be greater or less than the accrued amount.

Legal Proceedings

Between July 3, 2001 and August 29, 2001, four purported class action lawsuits were filed in the United States District Court for the Southern District of New
York against Proton and several of its officers and directors as well as against the underwriters who handled the September 28, 2000 initial public offering of common stock, or IPO. All of the complaints were filed allegedly on behalf of
persons who purchased Protons common stock from September 28, 2000 through and including December 6, 2000. The complaints are similar, and allege that Protons IPO registration statement and final prospectus contained
material misrepresentations and/or omissions related, in part, to excessive and undisclosed commissions allegedly received by the underwriters from investors to whom the underwriters allegedly allocated shares of the IPO. On April 19,
2002, a single consolidated amended complaint was filed, reiterating in one pleading the allegations contained in the previously filed separate actions, including the alleged class period of September 28, 2000 through and including
December 6, 2000. On July 15, 2002 Proton joined in an omnibus motion to dismiss the lawsuits filed by all issuer defendants named in similar actions which challenges the legal sufficiency of the plaintiffs claims, including those in
the consolidated amended complaint. Plaintiffs opposed the motion and the court heard oral argument on the motion in November 2002. On February 19, 2003, the court issued an opinion and order, granting in part and denying in part the
motion to dismiss as to Proton. In addition, in August 2002, the plaintiffs agreed to dismiss without prejudice all of the individual defendants from the consolidated complaint. An order to that effect was entered by the court in October 2002.

A special litigation committee of the board of directors has authorized Proton to negotiate a settlement of the pending claims substantially consistent
with a memorandum of understanding, which was negotiated among class plaintiffs, all issuer defendants and their insurers. The parties negotiated a settlement which is subject to approval by the court. On February 15, 2005, the court
issued an opinion and order preliminarily approving the settlement, provided that the parties agreed to a modification narrowing the scope of the bar order set forth in the original settlement. The parties agreed to a modification narrowing the
scope of the bar order, and on August 31, 2005, the court issued an order preliminarily approving the settlement. On December 5, 2006, the United States Court of Appeals for the Second Circuit overturned the District Courts
certification of the class of plaintiffs who are pursuing the claims that would be settled in the settlement against the underwriter defendants. Plaintiffs filed a Petition for Rehearing and Rehearing En Banc with the Second Circuit on
January 5, 2007 in response to the Second Circuits decision. On April 6, 2007, the Second Circuit denied plaintiffs Petition for Rehearing but clarified that the plaintiffs may seek to certify a more limited
class in the District Court.On June 25, 2007, the District Court signed an Order terminating the settlement. Proton believes it has meritorious defenses to the claims made in the complaints and intends to contest the lawsuits
vigorously. However, there can be no assurances that we will be successful, and an adverse resolution of the lawsuits could have a material adverse effect on our financial position and results of operation in the period in which the lawsuits
are resolved. Proton is not presently able to reasonably estimate potential losses, if any, related to the lawsuits. In addition, the costs to us of defending any litigation or other proceeding, even if resolved in our favor, could be
substantial.



17



---

##### Table of Contents

13. SEGMENT FINANCIAL DATA

Management has chosen to organize its enterprise around its two operating subsidiaries, Proton and Northern. Proton, our hydrogen generator and fuel cell business, develops and manufactures proton exchange membrane, or PEM, electrochemical
products. Northern, our distributed generation business, designs, builds and installs both stand-alone and grid-connected electric power systems for industrial, commercial and government customers. For management reporting and control, the Company
is divided into the operating segments as presented below. Each segment has general autonomy over its business operations.

Financial information as of and
for the three months and nine months ended September 30, 2007 and 2006, (in thousands) is summarized below.



|             |  |                                  |       |                                 |   |        |  |      |        |  |   |       
|------------ |  | -------------------------------- | ----- | ------------------------------- | - | ------ |  | ---- | ------ |  | - | ------
|             |  | Three Months Ended September 30, |       | Nine Months Ended September 30,
|             |  | 2007                             |       | 2006                            |   | 2007   |  | 2006
|Revenues:    |  |                                  |       |                                 |   |        |  |      |        |  |   |       
|Proton       |  | $                                | 3,268 |                                 | $ | 6,596  |  | $    | 7,741  |  | $ | 11,025
|Northern     |  |                                  | 3,875 |                                 |   | 8,159  |  |      | 14,654 |  |   | 20,780
|             |  |                                  |       |                                 |   |        |  |      |        |  |   |       
|Consolidated |  | $                                | 7,143 |                                 | $ | 14,755 |  | $    | 22,395 |  | $ | 31,805
|             |  |                                  |       |                                 |   |        |  |      |        |  |   |       

Included within Northerns revenues for the quarters ended September 30, 2007 and 2006 are sales to its
largest international customer totaling approximately 2% and 9% of consolidated revenues, respectively. The Company believes it has no risk of foreign dependence.



|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|---------------------- |  | -------------------------------- | ------- | - | ------------------------------- | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|                       |  | Three Months Ended September 30, |         |   | Nine Months Ended September 30, |  
|                       |  | 2007                             |         |   | 2006                            |   |         | 2007 |  |   | 2006    |  
|Loss from operations:  |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Proton                 |  | $                                | (755    | ) |                                 | $ | (1,647  | )    |  | $ | (3,240  | ) |  | $ | (5,849  | )
|Northern               |  |                                  | (6,727  | ) |                                 |   | (3,197  | )    |  |   | (18,992 | ) |  |   | (8,599  | )
|Eliminations and other |  |                                  | (1,975  | ) |                                 |   | (1,704  | )    |  |   | (11,697 | ) |  |   | (6,540  | )
|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Consolidated           |  | $                                | (9,457  | ) |                                 | $ | (6,548  | )    |  | $ | (33,929 | ) |  | $ | (20,988 | )
|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|                       |  |                                 
|                       |  | Three Months Ended September 30, |         |   | Nine Months Ended September 30, |  
|                       |  | 2007                             |         |   | 2006                            |   |         | 2007 |  |   | 2006    |  
|Net loss:              |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Proton                 |  | $                                | (731    | ) |                                 | $ | (1,644  | )    |  | $ | (3,204  | ) |  | $ | (5,826  | )
|Northern               |  |                                  | (6,778  | ) |                                 |   | (3,256  | )    |  |   | (19,173 | ) |  |   | (8,735  | )
|Eliminations and other |  |                                  | (7,735  | ) |                                 |   | (1,416  | )    |  |   | (17,786 | ) |  |   | (5,636  | )
|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Consolidated           |  | $                                | (15,244 | ) |                                 | $ | (6,316  | )    |  | $ | (40,163 | ) |  | $ | (20,197 | )
|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|                       |  |                                  |         |  
|                       |  | September 30, 2007               |         |   | December 31, 2006               |   |         |      |  |   |         |  
|Total assets:          |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Proton                 |  | $                                | 65,847  |   |                                 | $ | 73,488  |      |  |   |         |   |  |   |         |  
|Northern               |  |                                  | 20,935  |   |                                 |   | 25,380  |      |  |   |         |   |  |   |         |  
|Eliminations and other |  |                                  | (36,842 | ) |                                 |   | (28,978 | )    |  |   |         |   |  |   |         |  
|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Consolidated           |  | $                                | 49,940  |   |                                 | $ | 69,890  |      |  |   |         |   |  |   |         |  
|                       |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  

All assets of the Company are located in the United States.



18



---

##### Table of Contents

ITEM 2 - MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following
discussion should be read in conjunction with the Condensed Consolidated Financial Statements and Notes thereto appearing elsewhere in this Form 10-Q and with our Annual Report on Form 10-K filed for the fiscal year ended December 31, 2006.
This Form 10-Q contains forward-looking statements that involve substantial risks and uncertainties. You can identify these statements by forward-looking words such as anticipate, believe, could,
estimate, expect, intend, may, plan, potential, should, will, and would or similar words. You should read statements that contain these words
carefully because they discuss our future expectations and contain projections of our future results of operation or of our financial position or state other forward-looking information. However, there may be events in the future that we are unable
to predict accurately or control. The factors in the section captioned Critical Accounting Policies contained in our Annual Report on Form 10-K filed for the fiscal year ended December 31, 2006, and below in this Form 10-Q under the
Risk Factors and Legal Proceedings captions, provide examples of risks, uncertainties and events that may cause our actual results to differ materially from the expectations we describe in our forward-looking statements.

OVERVIEW

We provide products and services for
distributed, or on-site, power generation and storage. Using our systems, which produce energy at or near the place where it is used, our customers gain greater control over power quality, costs and management of their energy needs. We design,
integrate, construct and maintain power systems using a variety of technologies and energy sources both for grid-connected customers and for customers who need power solutions for remote locations or require more reliable or environmentally benign
alternatives to centrally distributed electricity. We also market our hydrogen generators, which produce hydrogen from electricity and water in a clean and efficient process, to domestic and international customers for industrial, utility and
research applications. We are developing additional technologies and products for the distributed energy market, including systems that provide backup power and energy storage, hydrogen generators that produce hydrogen for fuel cell vehicles, power
network architectures that link diverse power generating sources and advanced wind turbine generators.

Our distributed generation systems produce
electricity from conventional fuels and from cleaner, more sustainable sources such as wind, sunlight and biofuels, using reliable power generation technologies integrated with custom controls and power electronics. We have installed over 800
systems in more than 26 countries during over 30 years of operations. Our diverse customer base ranges from those who use our systems in remote applications, such as oil and gas pipelines and telecommunications facilities, to grid-connected
customers who use our systems for large commercial office buildings and manufacturing facilities. Our customers include Petróleos Mexicanos (PEMEX), S. C. Johnson & Son, Inc., Equity Office Properties Trust, The Timberland Company
and Honeywell International Inc.

Our hydrogen generator systems utilize proprietary proton exchange membrane, or PEM, electrochemical technology to
produce hydrogen through the electrolysis of water. Our hydrogen generators have been designed to address the existing demand for industrial hydrogen in a safer and more cost-effective manner than truck-delivered hydrogen. We have installed over 900
hydrogen generators in more than 40 countries over more than five years of operations. Our hydrogen generators are also being used in demonstration projects to supply fuel to fuel cell vehicles. We are developing core PEM technology to combine our
hydrogen generator technology with a fuel cell power generator to create an energy device that is able to produce and store hydrogen fuel that it can later use to generate electricity, which we refer to as a regenerative fuel cell system. In the
longer term, we believe our regenerative fuel cell systems will enable renewable energy solutions by facilitating the storage of energy produced by non-depleting, non-polluting energy sources, such as solar, wind and hydroelectric power.



19



---

##### Table of Contents

Update on our Financial Condition; Perseus Transaction

Since December 31, 2006, our financial condition has deteriorated significantly. We had anticipated that our previously announced revenue initiatives would improve
sales and margins, but our sales and gross margins in the quarter and the nine months ended September 30, 2007 were below our expectations. Our previously announced joint venture with Morgan Stanley Wind LLC has not generated any new business
to date. Accordingly, we have been required to raise additional funds and significantly cut our costs in order for our business to survive.

To address our
need to raise additional working capital, we entered into two loan transactions with Perseus Partners VII, L.P., or Perseus, which are described in more detail in Notes 1 and 4 to our condensed consolidated financial statements included in this
Quarterly Report on form 10-Q. On June 1, 2007, we closed on the first of these transactions, in which we borrowed $12.5 million from Perseus and issued to Perseus a warrant to purchase shares of our common stock. This loan bore interest at the
rate of 12.5% per annum and was secured by all of our assets and those of our material subsidiaries. On August 24, 2007, we closed on the second of the two transactions, in which we borrowed $15.0 million from Perseus, used a portion of
these proceeds to repay the principal and accrued interest on the initial loan and issued another warrant to Perseus to purchase additional shares of our common stock. The net amount we received in the second loan, after deducting the amount
necessary to repay the principal and accrued interest due on the initial note, was $2.1 million.

In connection with the loans from Perseus, we have agreed
with them to use commercially reasonable efforts to sell our Proton subsidiary, and we have engaged an investment bank to assist us in this process. We are in the process of providing information about Proton to prospective buyers and hope to
receive one or more bids in the near term. We expect to make a decision about the sale of Proton, subject to Board and possibly shareholder approval, by the end of the year.

On September 14, 2007 the Company received a notification from NASDAQ providing notification that, for the last 30 consecutive business days, the bid price of our common stock has closed below the minimum $1.00
per share requirement for continued inclusion under NASDAQ Marketplace Rule 4450(a)(5). The Company, in accordance with NASDAQ Marketplace Rule 4450(e)(2), has been provided 180 calendar days, or until March 12, 2008, to regain compliance. To
regain compliance, the bid price of the Companys common stock must close at $1.00 per share or more for a minimum of ten consecutive business days at any time before March 12, 2008. If we do not regain compliance, our common stock will be
delisted. If our common stock is delisted, the liquidity and marketability of shares of our common stock will decrease.

We incurred significant operating
losses and negative cash flows from operating activities in each of the last three years and during the quarter and the nine months ended September 30, 2007. Such circumstances raise substantial doubt about our ability to continue as a going
concern. The realization of assets and the satisfaction of liabilities in the normal course of business are dependent on, among other things, our ability to raise additional capital, sell the Proton subsidiary and certain operating assets, reduce
our operating losses and operate profitably, to generate cash flows from operations, as well as our ability to maintain credit under its current debt agreements adequate to conduct its business. If we became unable to continue as a going concern, we
would have to reorganize or liquidate our assets and we might receive significantly less than the value at which they are carried on our condensed consolidated financial statements.

While we recently obtained funding from Perseus as described above, we do not expect that our current capital resources will be sufficient to operate our business beyond the first quarter of 2008, and we expect that
we will need to raise additional capital no later than the end of the first quarter of 2008 to continue to operate. Our ability to continue our operations in the long term will be subject to a number of factors that pose additional risk and
uncertainty, including:



| |  |  | Our ability to secure additional capital funding or debt funding in the near future on terms acceptable to us or at all. Our ability to obtain additional funding
will be subject to a number of factors, including market conditions, our operating performance, the consent of our existing lenders and investor sentiment. These factors may make the timing, amount, terms and conditions of additional funding
unattractive. If we issue additional equity securities, existing stockholders may experience dilution or be subordinated to any rights, preferences or privileges granted to the new equity holders.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



20



---

##### Table of Contents

| |  |  | Our ability to enter into new contracts and receive sales orders that will generate contract, product and service revenues.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to achieve gross margins sufficient to cover our operating expenses and generate positive cash flow.
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to control operating expenses.
| | - |  | ------------------------------------------



| |  |  | Our ability to complete a sale/leaseback transaction of our Wallingford, Connecticut facility and the willingness of Perseus to make available to use the cash
proceeds of such a sale, in which proceeds Perseus has an ongoing security interest.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The potential acceleration of debt service payments by one or more of our lenders as the result of subjective acceleration clauses in our debt agreements.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------

CRITICAL ACCOUNTING JUDGMENTS AND ESTIMATES

Our discussion and analysis of our financial condition and results of operations is based upon our consolidated financial statements, which have been prepared by us in accordance with accounting principles generally accepted in the United
States. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and disclosure of contingent assets and liabilities. Our
estimates include those related to revenue recognition, depreciable lives of equipment, warranty obligations and contingency accruals. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable
under the circumstances. Actual results may differ from these estimates under different assumptions or conditions. For a complete description of our accounting policies, see Note 2 to our consolidated financial statements included in our Annual
report on Form 10-K for the fiscal year ended December 31, 2006. Our audit committee has discussed our critical accounting policies with management and our independent registered public accounting firm.

Our critical accounting policies include the following:

Revenue
RecognitionProduct Revenue

All of our product revenue is derived from the operations of our Proton segment. For product sales for which adequate
product warranty information exists, we record revenue when a firm sales agreement is in place, delivery has occurred, the sales price is fixed or determinable, and collectibility is reasonably assured. If customer acceptance of products is not
assured, revenue is recorded only upon formal customer acceptance. Customer acceptance provisions included in our product sales agreements may include written acceptance from the customer, acceptance upon servicing and installation of the equipment,
and acceptance after a period of time. Revenue for product sales to distributors, for which there are no rights of return or price adjustments on unsold inventory, is recognized on a gross basis upon shipment to the distributors, as they assume
title and risk of loss, subject to the deferral provisions below. For all product sales where adequate product warranty information does not yet exist to reasonably estimate warranty costs as required by accounting principles generally accepted in
the United States, we defer revenue and costs until the expiration of the product warranty period.



21



---

##### Table of Contents

During the third quarter of 2006, we determined that we had adequate product warranty information and experience to begin
recognizing product revenue related to our HOGEN H-series products.

We also earn revenue from the rental of our HOGEN products. We account for the
agreements as operating leases under the provisions of Statement of Financial Accounting Standards, or SFAS, No. 13, Accounting for Leases. The agreements are cancelable at any time by either party without penalty. Rental revenue is
recognized monthly over the term of the rental agreement.

Revenue RecognitionContract Revenue

We principally generate commercial contract revenue from projects in our remote infrastructure, on-site generation, and renewable energy field product lines at our
Northern Power segment. For projects with a duration of greater than three months where we have the ability to reasonably estimate total project costs to complete the contract, we recognize revenue utilizing the percentage-of-completion method as
prescribed by SOP 81-1, Accounting for Performance of Construction-Type and Certain Production-Type Contracts, or SOP 81-1, based on the relationship of costs incurred to total estimated contract costs. Where we do not have the ability
to estimate costs or the contract contains restrictive provisions, such as title not transferring until the end of the contract, we use the completed contract method under SOP 81-1. The selection of methods under SOP 81-1 in some circumstances can
be subject to our judgment. For the nine months ended September 30, 2007 and 2006, approximately 73% and 61% of our contract revenue, respectively, was recognized under the percentage-of-completion method.

We also derive contract revenues from government-sponsored research and development contracts and from commercial customers. For government-sponsored research and
development contracts that are fixed-price, we recognize revenue using the percentage-of-completion method under SOP 81-1. For fixed-price-incentive, or cost-reimbursement contracts that do not require us to meet specific obligations, we record
revenue as work is performed. For those research and development contracts that require us to meet specified obligations, including delivery and acceptance obligations, we recognize amounts advanced as contract liabilities until such obligations are
met. Once the obligations are met, we recognize the amounts as contract revenue. For all other commercial contracts, we recognize revenue under the completed contract method.

The recognition of revenue from contracts accounted for under SOP 81-1 requires significant judgment to estimate the costs to complete contracts in progress, which has a significant impact on the amount and timing of
recognition of revenue, cost of sales, gross margin and the recording of assets and liabilities. Contract costs may be incurred over a period of several months to several years and the long-term nature and complexity of these contracts can affect
our ability to estimate costs precisely. For example, delays, changes in scope, increases in labor and material costs or other unforeseen events could result in actual costs to complete being different from our original estimates, and those
differences could be material. During the three months ended September 30, 2007, we experienced increased estimated costs to complete on certain contracts which reduced or eliminated our estimated gross margin on these contracts. Change orders
that modify the scope of contracts are common in our business and often require significant judgment and estimation due to the uncertainty of negotiating with customers. We base our estimates on historical experience, vendor quotes, and other
projected costs we expect to incur over the term of the contract. We review and update our cost estimates on a quarterly basis or when circumstances change and warrant a modification to a previous estimate. If our estimates of the costs to complete
a contract exceed anticipated revenue on a contract, we immediately recognize a loss at the time the loss becomes anticipated. Estimates of costs to complete that are too low would result in revenue being recognized too early and gross margins being
too high at the onset of the contract. Our gross margin percentage for contract revenue may be affected by these changes in estimates and was (24)% and 3% for the nine months ended September 30, 2007 and 2006, respectively.



22



---

##### Table of Contents

Revenue RecognitionService Revenue

For service and repair contracts, we recognize revenue as work is performed. For operating and maintenance contracts where we have agreed to provide routine maintenance services over a period of time for a fixed
price, we recognize revenue ratably over the service period.

Warranty Costs

Our warranty to customers is limited to replacement parts and services and generally expires one year from the date of shipment or contract completion, except with respect to laboratory hydrogen generators, where the
warranty period is two years. We record estimated warranty obligations in the period in which we recognize the related revenue. We quantify and record an estimate for warranty related costs; this estimate is principally based on historical
experience. The accounting for warranties requires us to make assumptions and apply judgments when estimating product failure rates and expected material and labor costs. We make adjustments to accruals as warranty claim data and historical
experience warrant. If actual results are not consistent with the assumptions and judgments used to calculate our warranty liability, because either failure rates or repair costs differ from our assumptions, we may be exposed to gains or losses that
could be material. A 10% change in the warranty reserve at September 30, 2007 would have affected our pre-tax loss by approximately $61,000 for the nine months ended September 30, 2007.

Inventory

We record inventory at the lower of cost or market value.
We determine cost by the first-in, first-out method. This policy requires us to write down our inventory for the excess of the carrying value, which is typically the original cost, over the amount we expect to realize from the ultimate sale or other
disposal of the inventory based upon on our assumptions regarding forecasted consumer demand, market conditions, inventory aging and technological obsolescence. If any of our estimates are inaccurate, for example because of changes in technology
that affect demand for certain products in an unforeseen manner, we may be exposed to losses or gains in excess of our established reserve, and those gains and losses could be material. A 10% change in our inventory reserve as of September 30,
2007 would have affected our pre-tax loss by approximately $67,000 for the nine months ended September 30, 2007.

Intangible Assets

Intangible assets subject to amortization are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may
not be recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Measurement of any impairment loss for intangible assets subject to
amortization is based on the amount the carrying value exceeds the fair value of the asset.

We have assessed the useful lives of its other existing
intangible assets and believe that the estimated useful lives remain appropriate.

In the third quarter of 2007, we determined that there were indications
of impairment of the intangible assets related to the Crown acquisition because of our intention to find a buyer for service business. As a result of our impairment analysis, we determined that the value associated with the projected cash flows of
acquired service contracts and non-compete agreements has decreased resulting in the recognition of an impairment loss of approximately $1.1 million in the third quarter of 2007.



23



---

##### Table of Contents

Long-Lived Assets

We
evaluate potential impairment of long-lived assets and long-lived assets to be disposed of in accordance with SFAS No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets. SFAS No. 144 establishes procedures for
the review of recoverability and measurement of impairment, if necessary, of long-lived assets held and used by an entity. SFAS No. 144 requires that those assets be reviewed for impairment whenever events or changes in circumstances indicate
that the carrying amount of an asset may not be fully recoverable. We would be required to recognize an impairment loss if the carrying amount of long-lived assets is not recoverable based on their undiscounted cash flows. The measurement of
impairment loss is then based on the difference between the carrying amount and the fair value of the asset. If actual results are not consistent with our assumptions and judgments used in estimating future cash flows and asset fair values, we may
be exposed to additional impairment losses that could be material to our results of operations.

In January 2007, we announced that we were combining the
Northern and Proton businesses under Distributed Energy. This change was aimed at reducing costs and strengthening systems sales, engineering, production, service, and technology development. We also announced plans to exit the Waitsfield, Vermont
facility and consolidate all of the Northern operations in the Barre, Vermont facility. As a result of our decision to exit the Waitsfield facility and consolidate our Northern operations in Barre, Vermont by June 30, 2007, we revised the
estimated useful life and estimated residual value of the Waitsfield facility and accelerated depreciation charges. Therefore, we recorded additional depreciation expense of approximately $2.4 million for the nine months ended September 30,
2007.

Stock-Based Compensation

Stock-Based
Compensation  Employee Stock-Based Awards

On January 1, 2006, we adopted SFAS 123(R), Share-Based Payment, which requires the
measurement and recognition of compensation expense for all stock-based awards made to employees and directors including employee stock options and employee stock purchases under the Employee Stock Purchase Program, or the ESPP, based on estimated
fair values. SFAS 123(R) supersedes our previous accounting under APB 25, Accounting for Stock Issued to Employees for periods beginning in fiscal year 2006. In March 2005, the SEC issued SAB 107 providing supplemental
implementation guidance for SFAS 123(R). We have applied the provisions of SAB 107 in our adoption of SFAS 123(R).

SFAS 123(R) requires companies to
estimate the fair value of stock-based awards on the date of grant using an option pricing model. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods in our
Consolidated Statements of Operations. We adopted SFAS 123(R) using the modified prospective transition method which requires the application of the accounting standard starting from January 1, 2006. Our Condensed Consolidated Financial
Statements, as of and for the three-month and nine-month periods ended September 30, 2007 and 2006, reflect the impact of SFAS 123(R). Non-cash stock compensation expense for the three month ended September 30, 2007 and 2006 was
approximately $468,000 and $995,000, respectively. Non-cash stock compensation expense for the nine months ended September 30, 2007 and 2006, was approximately $1,423,000 and $4,370,000, respectively, which consisted primarily of stock-based
compensation expense related to employee stock options and restricted stock recognized under SFAS 123(R). In addition, stock-based compensation expense for the three-month period ended September 30, 2007 and 2006 of approximately $5,000 and
$25,000, respectively, were recognized related to our ESPP. Stock-based compensation expense for the nine-month period ended September 30, 2007 and 2006 of approximately $20,000 and $72,000, respectively, were recognized related to our ESPP.

Stock-based compensation expense recognized during a period is based on the value of the portion of stock-based awards that is ultimately expected to vest
during the period. Stock-based compensation



24



---

##### Table of Contents

expense recognized in the three months and nine months ended September 30, 2007 and 2006, included compensation expense for stock-based awards granted
prior to, but not yet vested as of December 31, 2005, based on the fair value on the grant date estimated in accordance with the pro forma provisions of SFAS 123, and compensation expense for the stock-based awards granted subsequent to
December 31, 2005, based on the fair value on the grant date estimated in accordance with the provisions of SFAS 123(R). Compensation expense for all stock-based awards granted will be recognized using the ratable single-option method. As
stock-based compensation expense recognized in our results for the first three quarters of 2007 is based on awards ultimately expected to vest, it has been reduced for estimated forfeitures. SFAS 123(R) requires forfeitures to be estimated at the
time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Prior to 2006, we accounted for forfeitures as they occurred for the purposes of pro forma information under SFAS 123, as disclosed in
our Notes to Consolidated Financial Statements for the related periods.

Upon adoption of SFAS 123(R), we selected the Black-Scholes option pricing model
as the most appropriate method for determining the estimated fair value for stock-based awards. The Black-Scholes model requires the use of highly subjective and complex assumptions which determine the fair value of stock-based awards, including the
options expected term and the price volatility of the underlying stock. The Company has determined that historical volatility is most reflective of the market conditions and the best indicator of expected volatility.

If factors change and we employ different assumptions in the application of SFAS 123(R) in future periods, the compensation expense that we record under SFAS 123(R) may
differ significantly from what we have recorded in the current period. Therefore, we believe it is important for investors to be aware of the high degree of subjectivity involved when using option pricing models to estimate share-based compensation
under SFAS 123(R). There is risk that our estimates of the fair values of our share-based compensation awards on the grant dates may bear little resemblance to the actual values realized upon the exercise, expiration, early termination or forfeiture
of those share-based payments in the future. Certain share-based payments, such as employee stock options, may expire worthless or otherwise result in zero intrinsic value as compared to the fair values originally estimated on the grant date and
reported in our financial statements. Alternatively, value may be realized from these instruments that is significantly in excess of the fair values originally estimated on the grant date and reported in our financial statements. There is currently
no market-based mechanism or other practical application to verify the reliability and accuracy of the estimates stemming from these valuation models, nor is there a means to compare and adjust the estimates to actual values. Although the fair value
of employee share-based awards is determined in accordance with SFAS 123(R) and the Securities and Exchange Commissions Staff Bulletin No. 107 (SAB 107) using an option pricing model, that value may not be indicative of the fair value
observed in a willing buyer/willing seller market transaction.

The following table highlights the impact that each of the various assumptions has on
determining the fair value of an option or award when using an option-pricing model:



|                                                      |  |                              |  |                 
|----------------------------------------------------- |  | ---------------------------- |  | ----------------
|Impact of Inputs to Value of Stock
Options           
|Volatility of Stock                                   |  | Higher the volatility        |  | Higher the value
|Expected Term                                         |  | Longer the term              |  | Higher the value
|Risk Free Rate                                        |  | Higher the rate              |  | Higher the value
|Dividend Yield                                        |  | Lower the yield              |  | Higher the value
|Exercise Price                                        |  | Lower the exercise price (A) |  | Higher the value
|Stock Price (fair value)                              |  | Higher the stock price       |  | Higher the value
|                                                     
|(A)   presumes exercise price is less than fair value

Also see Note 8 to the Condensed Consolidated Financial Statements on Stock-Based Compensation.



25



---

##### Table of Contents

Stock-Based Compensation  Non-Employee Stock Options

We account for stock-based compensation issued to non-employees in accordance with SFAS 123(R) and the consensus in Emerging Issues Task Force 96-18. These pronouncements
require the fair value of equity instruments given as consideration for services rendered to be recognized as a non-cash charge to income over the shorter of the vesting or service period. The equity instruments must be revalued on each subsequent
reporting date until performance is complete with a cumulative catch-up adjustment recognized for any changes in their fair value.

Recent Accounting
Guidance

We adopted the provisions of FASB Interpretation No. 48 Accounting for Uncertainty in Income Taxes (an interpretation of FASB
Statement No. 109) on January 1, 2007. As a result of the implementation of FIN 48, we performed a comprehensive review of any uncertain tax positions in accordance with recognition standards established by FIN 48. In this
regard, an uncertain tax position represents our expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting
purposes. As a result of this review, we believe we have no uncertain tax positions and accordingly, did not record any charges.

We will recognize accrued
interest and penalties related to uncertain tax positions in income tax expense. As of January 1, 2007, we did not have any tax-related interest or penalties. We file income tax returns in the U.S. federal and various state jurisdictions.
We are not currently under examination by The Internal Revenue Service (IRS) or any other state jurisdictions. The tax years 2003-2005 remain subject to examination.

In February 2007, FASB issued SFAS No, 159, The Fair Value Option for Financial Assets and Financial Liabilities-including an amendment of FASB Statement No.115, or SFAS 159. SFAS 159 expands the use of
fair value accounting but does not affect existing standards which require assets and liabilities to be carried at fair value. Under SFAS 159, a company may elect to use fair value to measure accounts and loans receivable, available-for-sales and
held-to-maturity securities, equity method investments, accounts payable, guarantees, issued debt and other eligible financial instruments. SFAS 159 is effective for fiscal years beginning after November 15, 2007. We are currently evaluating
the potential impact of this statement.

In September 2006, the FASB issued Statement of Financial Accounting Standards No. 157,
Fair Value Measurements (SFAS 157) which is effective for fiscal years beginning after November 15, 2007 and for interim periods within those years. This statement defines fair value, establishes a framework for measuring fair value
and expands the related disclosure requirements. Since its initial issuance, the FASB has received considerable input regarding the implications of the standard on the valuation of non-financial assets and liabilities. As a result, the FASB is
proposing to amend the scope of SFAS 157 to exclude its application to lease accounting and clarify its disclosure requirements relative to pension and other post-retirement employee benefit assets and liabilities. In light of the changes being
proposed and the underlying implications of the overall pronouncement, we are currently evaluating its potential impact to our financial statements and results of operations.



26



---

##### Table of Contents

Results of Operations

Comparison of the Three Months Ended September 30, 2007 and the Three Months Ended September 30, 2006

Revenues:



|             |  |                    |           |                    |   |                     |  |   |            |   |  |     |  
|------------ |  | ------------------ | --------- | ------------------ | - | ------------------- |  | - | ---------- | - |  | --- | -
|             |  | Quarter Ended      |           |                    |   |                     |  |  
|Net revenues |  | September 30, 2007 |           | September 30, 2006 |   | Increase (decrease) | 
|Contract     |  | $                  | 3,776,580 |                    | $ | 7,407,614           |  | $ | (3,631,034 | ) |  | -49 | %
|Product      |  |                    | 1,263,328 |                    |   | 5,644,028           |  |   | (4,380,700 | ) |  | -78 | %
|Service      |  |                    | 2,103,363 |                    |   | 1,703,661           |  |   | 399,702    |   |  | 23  | %
|             |  |                    |           |                    |   |                     |  |   |            |   |  |     |  
|Total        |  | $                  | 7,143,271 |                    | $ | 14,755,303          |  | $ | (7,612,032 | ) |  | -52 | %
|             |  |                    |           |                    |   |                     |  |   |            |   |  |     |  

The net decrease in contract revenues is a result of decreased revenue associated with our Northern subsidiary,
offset in part by increased revenue associated with our Proton subsidiary. Northern contract revenues decreased approximately $4.5 million in the third quarter of 2007 compared to the same period in 2006. This decrease primarily related to
approximately $1.9 million and $1.8 million associated with Northerns oil and gas and power distributor contracts. There were fewer new contracts in process compared to the prior years quarter. The decrease in Northerns revenue was
partially offset by an approximate $1.0 million increase in Protons contract revenue resulting from the increased number and size of contracts in the third quarter of 2007 compared to the third quarter of 2006.

The decrease in product revenue of $4.4 million in the third quarter of 2007 compared to the 2006 primarily relates to Proton H-series unit sales. In the third quarter
of 2006, we determined we had adequate warranty history on our HOGEN H-series generators to recognize revenue and establish an accurate warranty accrual upon shipment. Prior to the third quarter 2006, revenue on such H-series units was recognized at
the end of the warranty period, generally one year from the date of shipment. Accordingly, third quarter 2006 product revenue includes approximately $4.5 million of previously deferred H-series revenue. The decrease in product revenue in the third
quarter of 2007 compared to the same period in 2006, relates to decreased HOGEN S series revenue of approximately $0.3 million resulting from the shipment of fewer units. These decreases were partially offset by increased shipments of laboratory
generators and revenue associated with Protons new Stable Flow product.

The following table presents hydrogen generator unit shipment details:



|                                  |  |                    |  |                    |  |                     |  
|--------------------------------- |  | ------------------ |  | ------------------ |  | ------------------- | -
|                                  |  | Quarter Ended      |  |                    | 
|Hydrogen generator unit shipments |  | September 30, 2007 |  | September 30, 2006 |  | Increase (decrease) |  
|                                  |  |                   
|S series                          |  | 1                  |  | 6                  |  | (5                  | )
|H series                          |  | 6                  |  | 5                  |  | 1                   |  
|StableFlow                        |  | 4                  |  |                   |  | 4                   |  
|Laboratory generators             |  | 17                 |  | 13                 |  | 4                   |  
|                                  |  |                    |  |                    |  |                     |  
|Total                             |  | 28                 |  | 24                 |  | 4                   |  
|                                  |  |                    |  |                    |  |                     |  

The increase in service revenue relates to Northerns increased operating and maintenance business of
approximately $0.5 million. This is offset by a decrease of approximately $0.1 million associated with Northerns international field service business.



27



---

##### Table of Contents

As of September 30, 2007, our backlog was valued at approximately $12.7 million, consisting of contract and service
backlog valued at approximately $5.2 million for Northern and $4.5 million for Proton and product backlog for Proton valued at approximately $3.0 million.

Costs of revenue:



|                 |  |                    |           |                    |   |                     |  |   |            |   |  |     |  
|---------------- |  | ------------------ | --------- | ------------------ | - | ------------------- |  | - | ---------- | - |  | --- | -
|                 |  | Quarter Ended      |           |                    |  
|Cost of revenues |  | September 30, 2007 |           | September 30, 2006 |   | Increase (decrease) | 
|Contract         |  | $                  | 5,414,737 |                    | $ | 7,135,277           |  | $ | (1,720,540 | ) |  | -24 | %
|Product          |  |                    | 1,123,192 |                    |   | 5,262,627           |  |   | (4,139,435 | ) |  | -79 | %
|Service          |  |                    | 3,247,246 |                    |   | 1,850,167           |  |   | 1,397,079  |   |  | 76  | %
|                 |  |                    |           |                    |   |                     |  |   |            |   |  |     |  
|Total            |  | $                  | 9,785,175 |                    | $ | 14,248,071          |  | $ | (4,462,896 | ) |  | -31 | %
|                 |  |                    |           |                    |   |                     |  |   |            |   |  |     |  

Cost of contract revenues as a percentage of contract revenues increased from 96% in the third quarter of 2006 to
143% in the third quarter of 2007. Northerns costs of contract revenues as a percentage of revenues increased from 97% in the third quarter of 2006 to 195% in the third quarter of 2007. This increase in costs and decrease in gross margins is
due to additional cost overruns and loss provisions on contracts, particularly in its on-site power distributor business. The estimated costs to complete one of our on-site power distributor projects increased approximately $1.0 million during the
three months ended September 30, 2007 due to changing conditions and new developments associated with completing the project. Protons cost of contract revenue as a percentage of contract revenue decreased from 88% for the three months
ended September 30, 2006 to 71% for the comparable 2007 period. The increase in gross margin on Protons contracts was due to a change in contract mix from lower margin cost-share arrangements to higher margin fixed-price and
cost-plus-fixed-fee contracts.

Cost of product revenue as a percentage of product revenue decreased from 93% in the third quarter of 2006 to 89% in the
third quarter of 2007. The decrease in cost of product revenue as a percentage of revenue was primarily attributable to a reduction in warranty costs associated with Protons hydrogen generators in 2007 as compared to the 2006 period, offset in
part by a shift from high-margin S-series revenue to lower margin laboratory generators. Additionally, the third quarter 2006 product cost of revenue included approximately $4.1 million of previously deferred H- series costs of revenue that was
recognized at the end of warranty period.

Cost of service revenue as a percentage of service revenue increased from 109% in the third quarter of 2006 to
154% in the third quarter of 2007. The increase in cost of service revenue as a percentage of service revenue was due to approximately $0.2 million of infrastructure cost reductions related to our 2007 strategic reorganization (Refer to Note 9 of
the financial statements for information related to our 2007 strategic reorganization) and a change in Northerns mix of service contracts from higher margin international field service contracts to lower margin long-term domestic operating
and maintenance contracts. For the three months ended September 30, 2007, approximately 78% of Northerns service contract revenues were related to domestic operating and maintenance contracts compared to approximately 61% of service
contract revenues for the comparable 2006 period. In addition, we determined that there were indications of impairment of the intangible assets related to the Crown acquisition in the third quarter of 2007. As a result of our impairment analysis, we
determined that the value associated with the projected cash flows of acquired service contracts and non-compete agreements has decreased resulting in the recognition of an impairment loss of approximately $1.1 million in the third quarter of
2007.

Research and development expenses:

The
following chart reflects the amounts and percentage change of significant research and development items:



28



---

##### Table of Contents

|                              |  |                    |         |                    |   |                     |  |   |          |   |  |     |  
|----------------------------- |  | ------------------ | ------- | ------------------ | - | ------------------- |  | - | -------- | - |  | --- | -
|                              |  | Quarter Ended      |         |                    |   |                     |  |  
|Research and development      |  | September 30, 2007 |         | September 30, 2006 |   | Increase (decrease) | 
|Employee related              |  | $                  | 232,746 |                    | $ | 414,348             |  | $ | (181,602 | ) |  | -44 | %
|Project material              |  |                    | 18,694  |                    |   | 276,728             |  |   | (258,034 | ) |  | -93 | %
|Depreciation and amortization |  |                    | 71,885  |                    |   | 103,399             |  |   | (31,514  | ) |  | -30 | %
|Stock based compensation      |  |                    | 33,102  |                    |   | 54,570              |  |   | (21,468  | ) |  | -39 | %
|Other                         |  |                    | 174,003 |                    |   | 97,111              |  |   | 76,892   |   |  | 79  | %
|                              |  |                    |         |                    |   |                     |  |   |          |   |  |     |  
|Total                         |  | $                  | 530,430 |                    | $ | 946,156             |  | $ | (415,726 | ) |  | -44 | %
|                              |  |                    |         |                    |   |                     |  |   |          |   |  |     |  

Employee-related research and development costs and project material costs decreased as a result of fewer
employees, less developmental efforts associated with Protons hydrogen generators, and lower project material costs at Northern, related to development of its power distributor products. The increase in other research and development costs in
the third quarter of 2007 was attributed primarily to costs associated with the $0.1 million settlement agreement for a terminated development contract.

Selling, general and administrative expenses:

The following chart reflects the amounts and percentage change of significant selling,
general and administrative items:



|                                    |  |                    |           |                    |   |                     |  |   |           |   |  |     |  
|----------------------------------- |  | ------------------ | --------- | ------------------ | - | ------------------- |  | - | --------- | - |  | --- | -
|                                    |  | Quarter Ended      |           |                    |  
|Selling, general and administrative |  | September 30, 2007 |           | September 30, 2006 |   | Increase (decrease) | 
|Employee related                    |  | $                  | 2,037,456 |                    | $ | 2,861,657           |  | $ | (824,201  | ) |  | -29 | %
|Marketing and advertising           |  |                    | 206,064   |                    |   | 262,013             |  |   | (55,949   | ) |  | -21 | %
|Depreciation, amortization          |  |                    | 383,755   |                    |   | 387,183             |  |   | (3,428    | ) |  | -1  | %
|Stock based compensation            |  |                    | 395,226   |                    |   | 878,500             |  |   | (483,274  | ) |  | -55 | %
|Legal, consulting and accounting    |  |                    | 667,859   |                    |   | 557,684             |  |   | 110,175   |   |  | 20  | %
|Other                               |  |                    | 2,594,731 |                    |   | 1,162,628           |  |   | 1,432,103 |   |  | 123 | %
|                                    |  |                    |           |                    |   |                     |  |   |           |   |  |     |  
|Total                               |  | $                  | 6,285,091 |                    | $ | 6,109,665           |  | $ | 175,426   |   |  | 3   | %
|                                    |  |                    |           |                    |   |                     |  |   |           |   |  |     |  

The decrease in employee-related costs for the three months ended September 30, 2007 is directly related to
our 2007 strategic reorganization. The decrease in stock-based compensation primarily relates to the absence in 2007 of expenses in connection with restricted stock granted to our CEO in January 2006 as part of his employment arrangement. These
restricted stock awards vested over one year and accordingly $0.2 million was recorded in the third quarter of 2006. No amount was recorded in the third quarter of 2007 since these awards were fully vested. The additional decrease in stock based
compensation relates to fewer unvested stock options outstanding resulting from employee terminations. The increase in other expenses relates to an increase in bad debt expense of $0.7 million, primarily at Northern and $0.4 million of non-cash
charges associated with additional warrants earned by MSW, pursuant to our joint venture agreement.

Loss on extinguishment of debt:On
August 24, 2007, we closed on the $15.0 million subsequent convertible note. The net amount we received was $2.1 million, after deducting the amount necessary to repay the principal and interest due on the outstanding senior secured promissory
note issued by us to Perseus on June 1, 2007, or the initial note. In connection with this loan, the initial note was cancelled



29



---

##### Table of Contents

and the remaining unamortized portion of the related debt issuance costs and unamortized discount of approximately $1.2 million and $2.0 million,
respectively, relating to the initial note were written off, resulting in a loss on extinguishment of debt of approximately $3.3 million in the third quarter of 2007.

Interest income: Interest income decreased from $358,000 for the three months ended September 30, 2006 to $71,000 for the comparable period in 2007. The decrease is attributable to lower cash
balances and lower interest rates. The average interest rates for the three months ended September 30, 2007 and 2006 were approximately 3.2% and 5.2%, respectively. The average cash and marketable securities balances for the nine months ended
September 30, 2007 and 2006 were approximately $8.4 million and $27.6 million, respectively.

Interest expense:Interest expense
increased from $195,000 for the three months ended September 30, 2006 to $2.6 million for the comparable period in 2007. The increase was primarily the result of interest charges associated with our notes payable to Perseus described in the
Update on our Financial Condition section above. These charges include amortization of the debt discount, debt issuance costs, and beneficial conversion feature related to these notes.

Comparison of the Nine Months Ended September 30, 2007 and September 30, 2006

Revenues:



|             |  |                    |            |                    |   |                     |  |   |            |   |  |     |  
|------------ |  | ------------------ | ---------- | ------------------ | - | ------------------- |  | - | ---------- | - |  | --- | -
|             |  | Year To Date       |            |                    |  
|Net revenues |  | September 30, 2007 |            | September 30, 2006 |   | Increase (decrease) | 
|Contract     |  | $                  | 14,918,224 |                    | $ | 17,680,417          |  | $ | (2,762,193 | ) |  | -16 | %
|Product      |  |                    | 2,578,099  |                    |   | 8,583,934           |  |   | (6,005,835 | ) |  | -70 | %
|Service      |  |                    | 4,898,836  |                    |   | 5,540,519           |  |   | (641,683   | ) |  | -12 | %
|             |  |                    |            |                    |   |                     |  |   |            |   |  |     |  
|Total        |  | $                  | 22,395,159 |                    | $ | 31,804,870          |  | $ | (9,409,711 | ) |  | -30 | %
|             |  |                    |            |                    |   |                     |  |   |            |   |  |     |  

The decrease in contract revenue was the result of higher contract revenue of $2.5 million associated with Proton
contracts offset in part by a decrease in contract revenues of $5.1 million associated with Northern contracts. Protons contract revenue increased approximately $2.5 million, related to an increased number and size of contracts in the first
nine months of 2007 compared to the same period in 2006. The decrease in Northerns contract revenue relates primarily to decreases in its power distributor, oil and gas, and contract research and development businesses of approximately $0.6
million, $4.9 million and $2.0 million, respectively. Fewer contracts remained active during 2007 compared to the prior year. These decreases were partially offset by increases in Northerns wind businesses of approximately $2.4 million.

The decrease in product revenue of $6.0 million in the first nine months of 2007 compared to the 2006 period primarily relates to Proton H-series units.
Product revenue in 2006 includes approximately $5.2 million of previously deferred H-series revenue, which we recognized in the third quarter of 2006 as a result of our determination that we had adequate warranty history on our HOGEN H-series
generators to recognize revenue and establish an accurate warranty accrual upon shipment. The decrease in product revenue in the third quarter of 2007 compared to the comparable 2006 quarter also related to decreased HOGEN S series revenue of
approximately $1.3 million due to fewer unit shipments. These decreases were partially offset by increased revenue associated with higher shipments of laboratory generators and revenue associated with Protons new Stable Flow product.



30



---

##### Table of Contents

The following table presents hydrogen generator unit shipment details:



|                                  |  |                    |  |                    |  |                     |  
|--------------------------------- |  | ------------------ |  | ------------------ |  | ------------------- | -
|                                  |  | Year To Date       |  |                    | 
|Hydrogen generator unit shipments |  | September 30, 2007 |  | September 30, 2006 |  | Increase (decrease) |  
|S series                          |  | 7                  |  | 32                 |  | (25                 | )
|H series                          |  | 10                 |  | 14                 |  | (4                  | )
|StableFlow                        |  | 5                  |  |                   |  | 5                   |  
|Laboratory generators             |  | 50                 |  | 47                 |  | 3                   |  
|                                  |  |                    |  |                    |  |                     |  
|Total                             |  | 72                 |  | 93                 |  | (21                 | )
|                                  |  |                    |  |                    |  |                     |  

The $0.6 million decrease in service revenue during the nine months ended September 30, 2007 relates
primarily to Northerns international field service business.

As of June 30, 2007, our backlog was valued at approximately $12.7 million,
consisting of contract and service backlog valued at approximately $5.2 million for Northern and $4.5 million for Proton and product backlog for Proton valued at approximately $3.0 million.

Costs of revenues:



|                 |  |                    |            |                    |   |                     |  |   |            |   |  |     |  
|---------------- |  | ------------------ | ---------- | ------------------ | - | ------------------- |  | - | ---------- | - |  | --- | -
|                 |  | Year To Date       |            |                    |  
|Cost of revenues |  | September 30, 2007 |            | September 30, 2006 |   | Increase (decrease) | 
|Contract         |  | $                  | 18,550,729 |                    | $ | 17,125,439          |  | $ | 1,425,290  |   |  | 8   | %
|Product          |  |                    | 2,235,381  |                    |   | 8,272,588           |  |   | (6,037,207 | ) |  | -73 | %
|Service          |  |                    | 6,444,774  |                    |   | 5,365,823           |  |   | 1,078,951  |   |  | 20  | %
|                 |  |                    |            |                    |   |                     |  |   |            |   |  |     |  
|Total            |  | $                  | 27,230,884 |                    | $ | 30,763,850          |  | $ | (3,532,966 | ) |  | -11 | %
|                 |  |                    |            |                    |   |                     |  |   |            |   |  |     |  

Cost of contract revenues as a percentage of contract revenues increased from 97% in the first nine months of 2006
to 124% in the first nine months of 2007. Northerns costs of contract revenues as a percentage of revenues increased from 97% in the first nine months of 2006 to 146% in the first nine months of 2007. Protons cost of contract revenue as
a percentage of contract revenue decreased from 94% for the nine months ended September 30, 2006 to 70% for the comparable 2007 period. The increase in Northerns contract costs is partially due to the recording of loss reserves of
approximately $1.0 million associated with two contracts utilizing Stirling engine technology. On February 16, 2007, we were notified that the manufacturer of these engines, STM Power Inc., had ceased operations. These additional
costs are our current best estimate of the additional costs we will incur to resolve or settle these two contracts. Additionally, Northerns gross margins decreased due to additional cost overruns and loss provisions on contracts,
particularly in its on-site power distributor business as well as from fewer, less profitable contracts in its oil and gas and contract research and development businesses compared to the same period in 2006. The estimated costs to complete one
of our on-site power distributor projects increased approximately $2.2 million during the nine months ended September 30, 2007 due to changing conditions and new developments associated with completing the project. Protons cost of
contract revenue as a percentage of revenue decreased as a result of the increase in the number of active contracts as well as a change in contract mix from lower margin cost-share arrangements to higher margin fixed-price and cost-plus-fixed-fee
contracts.

Product cost of revenue as a percentage of product revenue decreased from 96% in the first nine months of 2006 to 87% in the first nine months
of 2007. The decrease in cost of product revenue as a percentage of revenue was primarily attributable to a reduction in warranty costs associated with Protons hydrogen



31



---

##### Table of Contents

generators in 2007 as compared to 2006. In addition, there was a shift from higher margin S-series revenue to lower margin laboratory generators.
Additionally, product cost of revenue during the first nine month of 2007 included approximately $5.2 million of previously deferred H- series costs of revenue that was recognized at the end of warranty period.

Service cost as a percentage of service revenue increased from 97% in the first nine months of 2006 to 132% in the first nine months of 2007. This increase in cost of
service revenue was attributable to a change in Northerns mix of service contracts from higher margin international field service contracts to lower margin long-term domestic operating and maintenance contracts. In the first nine months of
2007, 78% of Northerns service revenues were primarily from domestic field service and long-term operating and maintenance contracts compared to approximately 66% of service contract revenues for the comparable 2006 period. In addition, we
determined that there were indications of impairment of the intangible assets related to the Crown acquisition in the third quarter of 2007. As a result of our impairment analysis, we determined that the value associated with the projected cash
flows of acquired service contracts and non-compete agreements has decreased resulting in the recognition of an impairment loss of approximately $1.1 million in the third quarter of 2007.

Research and development expenses:

The following chart
reflects the amounts and percentage change of significant research and development items:



|                              |  |                    |           |                    |   |           |                     |  |   |            |   |  |     |  
|----------------------------- |  | ------------------ | --------- | ------------------ | - | --------- | ------------------- |  | - | ---------- | - |  | --- | -
|                              |  | Year To Date       |           |                    |   |           |                     |  |  
|Research and development      |  | September 30, 2007 |           | September 30, 2006 |   |           | Increase (decrease) | 
|Employee related              |  | $                  | 1,169,147 |                    | $ | 1,763,402 |                     |  | $ | (594,255   | ) |  | -34 | %
|Project material              |  |                    | 97,626    |                    |   | 830,085   |                     |  |   | (732,459   | ) |  | -88 | %
|Depreciation and amortization |  |                    | 264,622   |                    |   | 348,652   |                     |  |   | (84,030    | ) |  | -24 | %
|Stock based compensation      |  |                    | 82,376    |                    |   | 158,800   |                     |  |   | (76,424    | ) |  | -48 | %
|Other                         |  |                    | 198,626   |                    |   | (281,418  | )                   |  |   | 480,044    |   |  | 171 | %
|                              |  |                    |           |                    |   |           |                     |  |   |            |   |  |     |  
|Total                         |  | $                  | 1,812,397 |                    | $ | 2,819,521 |                     |  | $ | (1,007,124 | ) |  | -36 | %
|                              |  |                    |           |                    |   |           |                     |  |   |            |   |  |     |  

Employee-related research and development costs and project material costs decreased based on fewer employees,
less developmental efforts associated with Protons hydrogen generators, and lower project material costs at Northern, related to its power distributor products business. Other costs increased primarily due to the recognition of $0.5 million of
credits in 2006 from achieving specified milestones on Protons Connecticut Clean Energy Fund programs. Only $0.2 million of credits related to these programs were recognized in the comparable period of 2006. Additionally, other research and
development costs increased in the third quarter of 2007 due to costs associated with the execution of a $0.1 million settlement agreement for a terminated development contract.

Restructuring costs:

During the nine months ended September 30, 2007, we recorded severance charges of
approximately $702,000, resulting from our strategic re-organization announced in January 2007. The re-organization effort eliminated approximately 60 jobs in January and an additional 25 jobs in May. (Refer to Note 9 of the financial statements
for information related to our 2007 strategic reorganization)

General and administrative expenses:

The following chart reflects the amounts and percentage change of significant selling, general and administrative items:



32



---

##### Table of Contents

|                                    |  |                    |            |                    |   |                     |  |   |            |   |  |     |  
|----------------------------------- |  | ------------------ | ---------- | ------------------ | - | ------------------- |  | - | ---------- | - |  | --- | -
|                                    |  | Year To Date       |            |                    |   |                     |  |  
|Selling, general and administrative |  | September 30, 2007 |            | September 30, 2006 |   | Increase (decrease) | 
|Employee related                    |  | $                  | 7,647,088  |                    | $ | 8,568,878           |  | $ | (921,790   | ) |  | -11 | %
|Marketing and advertising           |  |                    | 602,168    |                    |   | 763,882             |  |   | (161,714   | ) |  | -21 | %
|Depreciation, amortization          |  |                    | 3,535,051  |                    |   | 1,104,185           |  |   | 2,430,866  |   |  | 220 | %
|Stock based compensation            |  |                    | 1,264,664  |                    |   | 4,074,315           |  |   | (2,809,651 | ) |  | -69 | %
|Legal, consulting and accounting    |  |                    | 2,366,642  |                    |   | 1,151,845           |  |   | 1,214,797  |   |  | 105 | %
|Other                               |  |                    | 11,163,006 |                    |   | 3,546,557           |  |   | 7,616,449  |   |  | 215 | %
|                                    |  |                    |            |                    |   |                     |  |   |            |   |  |     |  
|Total                               |  | $                  | 26,578,619 |                    | $ | 19,209,662          |  | $ | 7,368,957  |   |  | 38  | %
|                                    |  |                    |            |                    |   |                     |  |   |            |   |  |     |  

The decrease in employee-related costs for the nine months ended September 30, 2007 reflects the cost
reductions related to our 2007 strategic reorganization. The increase in depreciation and amortization of $2.4 million is the result of our decision to accelerate the depreciation related to our Waitsfield, VT facility based on our plan to exit that
facility by June 30, 2007. The decrease in stock-based compensation primarily relates to restricted stock charges of approximately $1.7 million recorded in the first nine months of 2006 associated with the employment agreement of our chief
executive officer. The additional $1.1 million decrease in stock based compensation relates to fewer unvested stock options outstanding as a result of employee terminations. The increase in legal, consulting and accounting expenses primarily relates
to the legal fees associated with the joint venture agreement with Morgan Stanley Wind, LLC and costs associated with financing efforts and real estate advice related to our Waitsfield building exit plan. The increase in other selling, general and
administrative expenses primarily relates to $1.0 million bad debt expense at Northern and $6.4 million of non-cash charges associated with warrants issued to Morgan Stanley Wind, LLC in connection with our joint venture agreement.

Loss on extinguishment of debt: In connection with our August loan from Perseus, the initial note was cancelled and the remaining unamortized portion of
the related debt issuance costs and unamortized discount of approximately $1.2 million and $2.0 million, respectively, were written off, resulting in a loss on extinguishment of debt of approximately $3.3 million in the third quarter
of 2007.

Interest income: Interest income decreased from $1.1 million for the nine months ended September 30, 2006 to $0.5 million for
the comparable period in 2007. The decrease resulted from lower cash balances. The average interest rates for the nine months ended September 30, 2007 and 2006 were relatively stable at 4.4% and 4.5%, respectively. The average cash and
marketable securities balances for the nine months ended September 30, 2007 and 2006 were approximately $10.2 million and $33.0 million, respectively.

Interest expense:Interest expense increased from $534,000 for the nine months ended September 30, 2006 to $3,630,000 for the comparable period in 2007. The increase was primarily the result of interest charges
associated with our notes payable to Perseus described in the Update on our Financial Condition section above. These charges included amortization of the debt discount, debt issuance costs, and beneficial conversion feature related to these notes.

LIQUIDITY AND CAPITAL RESOURCES

Since inception in
August 1996 through September 2007, we and our predecessor, Proton, have financed our operations through convertible preferred stock issuances, an initial public offering, an equity distribution agreement and debt that, in total, raised
approximately $222.7 million. As of September 30, 2007, we had $6.6 million in cash, cash equivalents and marketable securities.



33



---

##### Table of Contents

Cash used in operating activities was $24.2 million for the nine months ended September 30, 2007 and was primarily
attributable to our net loss, increases in inventories, increases in accounts receivable, and decreases in accounts payable and accrued expenses, partially offset by non-cash charges to income such as depreciation, amortization, amortization of debt
discount and financing costs, loss on extinguishment of debt, expense for warrants issued and stock compensation expense. Cash used in operating activities was $19.3 million for the nine months ended September 30, 2006 and was primarily
attributable to our net loss, increases in accounts receivable and decreases in deferred revenues and contract advances, partially offset by non-cash depreciation, amortization and stock compensation expense, and an increase in billings in excess of
costs.

Cash provided by investing activities was $18.2 million for the nine months ended September 30, 2007 and was primarily attributable to the
proceeds from the maturities and sales of marketable securities and the release of restricted cash related to our Webster Bank Mortgage. Cash used in investing activities was $8.1 million for the nine months ended September 30, 2006 and was
primarily attributable to the reservation of restricted cash as a result of our amended Webster Bank agreement, the acquisition of the operations and maintenance business of Crown Engineering and Construction, Inc in April, 2006 and the purchase of
fixed assets, partially offset by net proceeds from the maturity of marketable securities.

Cash provided by financing activities was approximately $7.7
million for the nine months ended September 30, 2007 and was primarily attributable to borrowings from Perseus and proceeds received from exercised incentive stock options offset by the payoff of our Wallingford mortgage. Cash provided by
financing activities was $8.5 million for the nine months ended September 30, 2006 and was primarily attributable to proceeds received in conjunction with the sale of stock, partially offset by payments under Protons and Northerns
debt agreements. In 2006, we sold an aggregate of 1,171,297 shares under an equity distribution agreement, at daily average prices ranging from $6.43 to $6.81 per share, resulting in net proceeds of approximately $7.5 million. Additional proceeds
were received from exercised incentive stock options and exercised common stock warrants

We incurred significant operating losses and negative cash flow
from operating activities in each of the last three years and during the nine months ended September 30, 2007. Such circumstances raise substantial doubt about our ability to continue as a going concern. The realization of assets and the
satisfaction of liabilities in the normal course of business are dependent on, among other things, our ability to raise additional capital, to reduce our operating losses and operate profitably, to generate cash flow from operations, as well as our
ability to maintain credit under our current debt agreements adequate to conduct our business. If we became unable to continue as a going concern, we would have to reorganize or liquidate our assets and we might receive significantly less than the
value at which they are carried on our consolidated financial statements.

Management has developed a plan to increase revenue, improve gross margin,
reduce expenses, potentially sell assets and raise additional capital in order to increase our cash balance. This plan includes the following elements:



| |  |  | We announced a 60 person (approximately 20%) reduction of our workforce on January 31, 2007 and an approximately 25 person reduction of our workforce in May
2007. We will make additional workforce reductions in the future if business conditions warrant.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | We have exited our Waitsfield, Vermont facility and combined our Vermont operations into our Barre, Vermont facility. We have engaged a commercial real estate
broker to sell our Waitsfield facility.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



34



---

##### Table of Contents

| |  |  | We are looking to raise additional capital.
| | - |  | -------------------------------------------



| |  |  | We have engaged an investment banker to assist us in the sale of our Proton subsidiary. If we are able to complete the sale of Proton, we would expect to use the
cash generated to fund operations and service our debt.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | We have engaged a commercial real estate broker to identify parties that would be interested in purchasing our Connecticut facility and leasing it back to us. If we
are successful in completing a sale of this facility, Perseus has a security interest in the cash proceeds and accordingly may not allow us to use these proceeds to fund our operations.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | We have redesigned our sales opportunity management and contract negotiation process and with such changes we hope to be more selective about the contracts we enter
into. In particular, we expect that revenues associated with our on-site business will continue to decrease as we focus on other areas of our business with more profit potential. To date we have not increased revenue.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

A number of factors however, pose risk and uncertainty in the execution of our plan, including:



| |  |  | Our ability to secure additional capital funding on terms acceptable to us or at all. Our ability to obtain additional funding will be subject to a number of
factors, including market conditions, our operating performance, the consent of our existing lenders and investor sentiment. These factors may make the timing, amount, terms and conditions of additional funding unattractive. If we issue additional
equity securities, existing stockholders may experience dilution or be subordinated to any rights, preferences or privileges granted to the new equity holders.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to successfully sell our Proton subsidiary.
| | - |  | -------------------------------------------------------



| |  |  | Our ability to enter into new contracts and receive sales orders that will generate contract, product and service revenues. We are working to win new Northern
contracts. Our plan will be adversely impacted if we do not secure those contracts.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to achieve gross margins sufficient to cover our operating expenses and generate positive cash flow.
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to control operating expenses.
| | - |  | ------------------------------------------



| |  |  | Our ability to complete a sale/leaseback transaction of our Wallingford, Connecticut facility and the willingness of Perseus to allow us to use the proceeds of such
a sale to fund our operations.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The potential acceleration of debt service payments by one or more of our lenders as the result of subjective acceleration clauses in our debt agreements.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------



|ITEM 3. | Quantitative and Qualitative Disclosures About Market Risk
|------- | ----------------------------------------------------------

Interest rate risk is the major price risk facing our investment portfolio. Such exposure can subject us to economic losses due to changes in the level or volatility of interest rates. Generally, as interest rates rise, prices for fixed
income instruments will fall. As rates decline the inverse is true. We attempt to mitigate this risk by investing in high quality issues of short duration. We do not expect any material loss from our marketable securities investments and believe
that our potential interest rate exposure is not material. Additionally, we are exposed to market risk due to variable interest rates under our financing arrangements.



35



---

##### Table of Contents

At September 30, 2007, we had $0.6 million outstanding under our ten-year term note that is subject to a variable
interest rate. The note bears interest at a variable rate equal to two percentage points less than the Vermont Economic Development Authoritys prevailing rate for taxable financing, which was 6.50% per annum at September 30, 2007,
with a maturity date of October 6, 2015. If our variable interest rate were to increase or decrease by 10%, we do not believe such a change would have a material impact on our financial position or results of operations.



|ITEM 4. | Controls and Procedures
|------- | -----------------------

(a) Evaluation of Disclosure Controls
and Procedures

Our management, with the participation of our principal executive officer and principal financial and accounting officer, evaluated the
effectiveness of our disclosure controls and procedures as of September 30, 2007. The term disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures
of a company that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the
SECs rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange
Act is accumulated and communicated to the companys management, including its principal executive and principal financial and accounting officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes
that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible
controls and procedures. Based on the evaluation of our disclosure controls and procedures as of September 30, 2007, our principal executive officer and principal financial and accounting officer concluded that, as of such date, our disclosure
controls and procedures were effective at the reasonable assurance level.

(b) Changes in Internal Control over Financial Reporting

No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the nine months ended
September 30, 2007 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II.

OTHER INFORMATION



|ITEM 1. | Legal Proceedings
|------- | -----------------

Between July 3, 2001 and
August 29, 2001, four purported class action lawsuits were filed in the United States District Court for the Southern District of New York against Proton and several of its officers and directors as well as against the underwriters who handled
the September 28, 2000 initial public offering of common stock, or IPO. All of the complaints were filed allegedly on behalf of persons who purchased Protons common stock from September 28, 2000 through and including
December 6, 2000. The complaints are similar, and allege that Protons IPO registration statement and final prospectus



36



---

##### Table of Contents

contained material misrepresentations and/or omissions related, in part, to excessive and undisclosed commissions allegedly received by the underwriters from
investors to whom the underwriters allegedly allocated shares of the IPO. On April 19, 2002, a single consolidated amended complaint was filed, reiterating in one pleading the allegations contained in the previously filed separate actions,
including the alleged class period of September 28, 2000 through and including December 6, 2000. On July 15, 2002 Proton joined in an omnibus motion to dismiss the lawsuits filed by all issuer defendants named in similar actions which
challenges the legal sufficiency of the plaintiffs claims, including those in the consolidated amended complaint. Plaintiffs opposed the motion and the court heard oral argument on the motion in November 2002. On February 19, 2003,
the court issued an opinion and order, granting in part and denying in part the motion to dismiss as to Proton. In addition, in August 2002, the plaintiffs agreed to dismiss without prejudice all of the individual defendants from the consolidated
complaint. An order to that effect was entered by the court in October 2002.

A special litigation committee of the board of directors
has authorized Proton to negotiate a settlement of the pending claims substantially consistent with a memorandum of understanding, which was negotiated among class plaintiffs, all issuer defendants and their insurers. The parties negotiated a
settlement which is subject to approval by the court. On February 15, 2005, the court issued an opinion and order preliminarily approving the settlement, provided that the parties agreed to a modification narrowing the scope of the bar
order set forth in the original settlement. The parties agreed to a modification narrowing the scope of the bar order, and on August 31, 2005, the court issued an order preliminarily approving the settlement. On December 5, 2006,
the United States Court of Appeals for the Second Circuit overturned the District Courts certification of the class of plaintiffs who are pursuing the claims that would be settled in the settlement against the underwriter defendants.
Plaintiffs filed a Petition for Rehearing and Rehearing En Banc with the Second Circuit on January 5, 2007 in response to the Second Circuits decision. On April 6, 2007, the Second Circuit denied
plaintiffs Petition for Rehearing but clarified that the plaintiffs may seek to certify a more limited class in the District Court. On June 25, 2007, the District Court signed an Order terminating the settlement. Proton believes it has
meritorious defenses to the claims made in the complaints and intends to contest the lawsuits vigorously. However, there can be no assurances that we will be successful, and an adverse resolution of the lawsuits could have a material adverse
effect on our financial position and results of operation in the period in which the lawsuits are resolved. Proton is not presently able to reasonably estimate potential losses, if any, related to the lawsuits. In addition, the costs to us
of defending any litigation or other proceeding, even if resolved in our favor, could be substantial.



|ITEM 1A. | Risk Factors
|-------- | ------------

The following important factors, among others, could
cause actual results to differ materially from those indicated by forward-looking statements made in this Quarterly Report on Form 10-Q and presented elsewhere by management from time to time.

RISKS RELATING TO OUR COMPANY

We will require funding in order to
continue to operate.

Our cash and marketable securities on hand as of September 30, 2007, together with our 2007 forecasted revenues and existing
backlog may not be sufficient to fund operations through December 31, 2007. Even though we raised additional funding from Perseus in June and August, we will need to raise additional funding in the near future to support our ongoing operations.

In addition, management may need to take additional actions to further reduce operating expenses. Sufficient funds may not be available to us thereafter
or on terms that we deem acceptable, if they are available at all.



37



---

##### Table of Contents

Management has developed a plan to increase revenue, improve gross margin, reduce expenses, potentially sell assets and
raise additional capital in order to increase our cash balance. However, a number of factors pose risk and uncertainty in the execution of our plan, including:



| |  |  | Our ability to enter into new contracts and receive sales orders that will generate contract, product and service revenues;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to achieve gross margins sufficient to cover our operating expenses and generate positive cash flow;
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to control operating expenses;
| | - |  | ------------------------------------------



| |  |  | Our ability to complete a sale/leaseback transaction of our Wallingford facility and the willingness of Perseus to allow us to use the proceeds of such a sale to
fund our operations;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The potential acceleration of debt service payments by one of our lenders as the result of subjective acceleration clauses in our debt agreements;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our ability to secure additional equity capital funding or debt funding in the near future on terms acceptable to us or at all. Our ability to obtain additional
funding will be subject to a number of factors, including market conditions, our operating performance, the consent of our existing lenders and investor sentiment. These factors may make the timing, amount, terms and conditions of additional funding
unattractive. If we issue additional equity securities, existing stockholders may experience dilution or be subordinated to any rights, preferences or privileges granted to the new equity holders.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our independent registered public accountants have modified their report for our fiscal year ended December 31, 2006 with respect to our ability to continue as a
going concern.

Our independent registered public accountants have modified their report for our fiscal year ended December 31, 2006 with respect
to our ability to continue as a going concern. This modification may negatively affect our stock price, our capital-raising efforts or our ability to enter into new contracts with customers. Even after our Perseus funding, there remains substantial
doubt about our ability to continue as a going concern. Our consolidated financial statements have been prepared on the basis of a going concern, which contemplates the realization of assets and the satisfaction of liabilities in the normal course
of business. If we became unable to continue as a going concern, we would have to liquidate our assets and we might receive significantly less than the values at which they are carried on our consolidated financial statements.

Our joint venture relationship with Morgan Stanley Wind LLC may not produce the benefits we hope for and could result in adverse accounting consequences.

As part of our strategy to provide project finance alternatives to our customers, we entered into a joint venture agreement with Morgan Stanley Wind
LLC, or MSW, in March 2007. Although this agreement contemplates that MSW will generally contribute 85% of the capital necessary to meet project financing requirements, MSW is not obligated to finance any particular projects or any projects at all.
Accordingly, we cannot assure you that this arrangement will provide the strategic benefits that we hope for. In addition, the agreement contemplates that we will generally contribute 15% of the capital necessary to meet project financing
requirements for those projects that MSW funds. Although we are not technically required to provide any financing to projects that we do not approve, if we do not do so MSW might determine not to fund projects or to fund fewer projects. Finally, we
are not able at this time to determine whether the joint venture company or any project companies formed and funded under this arrangement will be consolidated with us for purposes of preparing our financial statements. If these companies are
required to be consolidated with us, our financial statements may include assets, liabilities, revenues and expenses that we do not fully control.



38



---

##### Table of Contents

The warrant we issued to MSW allows them to purchase up to 10% of our common stock outstanding from time to time;
accordingly, any dilution resulting from future issuances of our common stock, options, warrants or other convertible securities will be increased by the effect of this warrant.

In connection with our execution of the joint venture agreement with MSW, we issued to MSW a warrant entitling them to purchase up to 10% of our common stock outstanding from time to time, including shares of common
stock issuable upon the exercise of stock options, warrants and other convertible or exchangeable securities. Accordingly, if we issue any new shares of our common stock, or issue any options or warrants to purchase our common stock or other
securities convertible into our common stock, this will trigger a right of MSW under its warrant to acquire additional shares equal to as much as 10% of the new issuance. This feature of the warrant has the effect of increasing the dilution to
current stockholders that would result from any issuances of our common stock or securities related to our common stock, including an issuance in connection with any financing transaction we may undertake.

Our revenue and results of operations may fluctuate significantly as a result of factors outside of our control, which could cause the market price of our common
stock to decline.

We expect our revenue and results of operations to vary significantly from quarter to quarter. As a result, quarterly comparisons of
our financial results are not necessarily meaningful and should not be relied on as an indication of our future performance. In addition, due to our stage of development, we cannot predict our future revenue or results of operations with a precise
degree of accuracy. As a consequence, our results may fall below the expectations of securities analysts and investors, which could cause the price of our common stock to decline. Factors that may affect our results include:



| |  |  | the status of development of our technology, products and manufacturing capabilities;
| | - |  | -------------------------------------------------------------------------------------



| |  |  | the cost and availability of raw materials and key components;
| | - |  | --------------------------------------------------------------



| |  |  | warranty and service cost for products in the field;
| | - |  | ----------------------------------------------------



| |  |  | the introduction, timing and market acceptance of new products introduced by us or our competitors;
| | - |  | ---------------------------------------------------------------------------------------------------



| |  |  | the development of strategic relationships and distribution channels;
| | - |  | ---------------------------------------------------------------------



| |  |  | general economic conditions, which can affect customers capital investments and the length of sales cycles;
| | - |  | ------------------------------------------------------------------------------------------------------------



| |  |  | the development of vehicular PEM fuel cells and renewable energy markets; and
| | - |  | -----------------------------------------------------------------------------



| |  |  | government regulation.
| | - |  | ----------------------

We expect to continue make
investments in all areas of our business, particularly in research and product development and in expanding our manufacturing and project finance capability. Because the investments associated with these activities are relatively fixed in the
short-term, we may be unable to adjust our spending quickly enough to offset any unexpected shortfall in our revenue growth. In addition, because we are in the very early stages of selling our products and have a limited number of customers, we
expect our order flow to be uneven from period to period.



39



---

##### Table of Contents

We have incurred, and expect to continue to incur, substantial losses, and we may never become profitable.

We have incurred substantial losses since we were founded and anticipate we will continue to incur substantial losses in the future. As of
September 30, 2007, we had an accumulated deficit of $229 million. We cannot predict when we will operate profitably, if ever. We expect to continue to incur expenses related to research and development activities, expansion of our
manufacturing capability and selling, general and administrative functions. As a result, we anticipate that we will continue to incur losses until we can achieve enough contract business at favorable margins and achieve high enough volumes to
cost-effectively produce and sell our hydrogen generators. Even if we achieve profitability, we may be unable to sustain or increase our profitability in the future.

Our future success is uncertain because of our limited commercial history selling many of our products.

We have
only been shipping commercial models of our hydrogen generators during the last five years and have not yet manufactured commercial regenerative fuel cell systems. We began shipping commercial models of our 100 kilowatt wind turbine in 2004.
Accordingly, there is only a limited basis upon which to evaluate our products, business and prospects, and our future success is uncertain. You should consider the challenges, expenses, delays and other difficulties typically involved in the
establishment of a new business, including the continued development of products, development of fully functioning manufacturing operations, refinement of processes and components for our commercial products, recruitment of qualified personnel,
ability to manufacture a product which meets cost, reliability and efficiency needs, and achievement of market acceptance for our products.

Our
distributed generation business is characterized by a long sales cycle, a relatively small number of projects each year and potential significant cost overruns on individual projects, which can lead to variability and unpredictability in this
business from period to period and financial losses on individual projects.

As an engineering, procurement and construction contractor, we design and
build a relatively small number of projects for a small number of customers each year. For many of these customers, we will deliver a single system with little or no opportunity for repeat business. Contracts for many of these large projects are
awarded by competitive bid. With multiple other bidders on most large project opportunities, we often cannot accurately assess the probability of winning the contract prior to its award by the customer. Sales cycles are very long and projects can be
delayed or cancelled for reasons beyond our control. Most large domestic distributed generation and hydrogen generation project opportunities are discretionary purchases for the customer, and, as a result, at the end of the sales cycle many such
projects may never materialize for reasons beyond our control. During this lengthy sales cycle, we may incur significant expense and expend significant management effort. Implementation of projects that we are awarded can sometimes take over twelve
months. During that time, numerous factors can contribute to cost overruns and schedule delays that affect profitability or result in a net loss. We have recently experienced significant cost overruns on several of our projects, and we expect some
ongoing project losses as we work to complete these projects. Generally accepted accounting principles may require us to defer revenue on a significant portion of our contracts until the project is completed, depending on contract terms. These
factors make it very difficult for us to generate firm backlog well in advance of the actual projects and to accurately forecast future sales. If our sales forecasts from a specific project or customer for a particular period are not realized in
that period, we may be unable to compensate for the shortfall, which could harm our results of operations. In addition, our revenue and results of operations may vary significantly from year to year and from quarter to quarter within a year.



40



---

##### Table of Contents

Our distributed generation business is dependent on a small number of customers, and termination of a project by one
or more of these customers could harm our business.

Typically, sales of our distributed generation systems are made to customers under single
contracts to provide highly specialized on-site power systems designed and built to meet customer specifications. For nine months ended September 30, 2007, our largest 5 customers accounted for 35% of our revenues and our largest 10 customers
accounted for 46% of our revenues. Because such a high percentage of our sales are concentrated in so few contracts, failure by us or our customers to perform or deliver on any one of these contracts could have a major impact on our annual results
of operations. In addition, most of our customer contracts are terminable on short notice. This high concentration of sales in a small number of customers also subjects us to a high degree of customer credit risk and risk of non-performance by our
vendors. A single vendors late delivery of a key component required for a project, for example, could significantly delay our completion of the project and might trigger liquidated or consequential damages or other penalties as may be
stipulated in our contracts with our customers.

In the past, we have experienced performance problems with our hydrogen generators.

In the past, we have experienced performance problems with some components of our hydrogen generators, specifically hydrogen sensor modules, power supplies and cell
stacks, which have required component replacement. We cannot guarantee that further problems related to these or other components or products will not occur and require additional corrective measures. If we are unable to solve these problems,
potential purchasers of our products may decline to purchase them, which could affect our ability to grow our revenues. We could also face liability to our customers and harm to our reputation as a result.

We may not be able to grow our business if we do not achieve widespread commercial acceptance of our hydrogen generators in the market for delivered hydrogen.

We market our hydrogen generators to small and medium volume users of delivered hydrogen. Our method of supplying hydrogen by producing it on-site using
PEM electrolysis represents a significant departure from conventional means of supplying hydrogen to end users. PEM electrolysis is a new technology in the markets we are targeting, and we do not know if our targeted customers will accept our
product. Our business depends on the widespread commercial acceptance of our hydrogen generators, and we may be unable to grow our business if our targeted customers do not purchase substantial numbers of our hydrogen generators. Our targeted
customers, or the distributors whom we intend to use to market to these customers, may not purchase our hydrogen generators at all or in sufficient quantities to support the growth of our business. Our hydrogen generators will require our target
customers to make a substantial initial investment.

We expect to incur significant expenses as we continue to expand our manufacturing production, and
we may not be successful in these efforts.

We have expanded our hydrogen generator and distributed generation manufacturing facilities in anticipation
of increased demand for our products. If this demand does not materialize, we will not generate sufficient revenue to offset the costs of maintaining, expanding and operating these facilities, which could increase our losses and prevent us from
growing our business. We expect to expand production and may experience delays or problems in our expected expansion that could compromise our ability to increase our sales and grow our business. Factors that could delay or prevent our expected
production expansion include:



| |  |  | the inability to purchase parts or components in adequate quantities or sufficient quality, including from sole source vendors;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------



| |  |  | the cost and availability of raw materials;
| | - |  | -------------------------------------------



41



---

##### Table of Contents

| |  |  | the failure to increase assembly and test operations;
| | - |  | -----------------------------------------------------



| |  |  | the failure to hire and train additional manufacturing personnel; and
| | - |  | ---------------------------------------------------------------------



| |  |  | the failure to develop and implement cost-efficient manufacturing processes and equipment.
| | - |  | ------------------------------------------------------------------------------------------

In addition, we may incur significant manufacturing costs and may experience unforeseen delays and expenses in our product design and manufacturing efforts. If the
commercialization of our products is delayed, potential purchasers may also decline to purchase them or choose alternative technologies, both of which could impair our ability to generate revenue in the future.

We may not be able to increase revenues in the future if we do not complete the development of new products and technologies.

We anticipate that a portion of our future revenue from our distributed generation business will be derived from the sale or licensing of regenerative fuel cell, wind
turbine and power electronics products and technologies which we are currently developing or have only recently made commercially available. Many of these new products and technologies are based on new and unproven designs, and it is difficult to
predict whether they will be commercially viable. If we fail to successfully develop and commercialize these products and technologies on the timetable we anticipate or at all, we will be unable to recover the investments we have made in their
development and will be unable to grow our revenue from their sale or licensing. In addition, we may not be successful in developing product designs and manufacturing processes that permit the manufacture of our hydrogen generators and fuel cell
systems in commercial quantities at commercially acceptable costs while preserving quality. Currently, we sell some of our products for less than it costs to produce them. New technology developments or cost reductions in existing technologies may
also delay or prevent the development or sale of some or all of our planned products or make our planned products uncompetitive or obsolete.

We rely on
third party suppliers and subcontractors for certain components and services, and we could suffer losses if these suppliers and subcontractors fail to fulfill our needs.

Many of the components in our distributed generation and hydrogen generation systems, including the proton exchange membrane material used in our PEM products, hydrogen purification system and custom-designed power
supplies used in our products, are available only from a limited number of suppliers and in some cases only a single supplier. Some of our suppliers are small- and medium-size companies that may not be able to increase production in an acceptable
time period or at acceptable prices or quality levels. In addition, to the extent these components are proprietary products of our suppliers, or the processes used by our suppliers to manufacture these components are proprietary, we may be unable to
obtain licenses on commercially reasonable terms or at all, and we may be unable to obtain comparable components from alternative suppliers. Often our suppliers custom engineer components to our specifications for use in our systems. Delayed
deliveries, poor quality and warranty issues can delay production of our products or completion of our projects, reduce our profits and damage our relationships with our customers.

We have agreements with two customers providing for construction of power systems that utilize Stirling engine technology. On February 16, 2007, we were notified that the manufacturer of these engines, STM
Power, Inc., had ceased operations. We have informed the customers that, due to STMs cessation of operations, we are likely unable to complete and maintain these power systems as planned. As of September 30, 2007 the Company has
recorded additional estimated project losses of approximately $1.1 million, which represents its current best estimate of the costs required to resolve the two contracts. Should an adverse resolution related to these contracts occur, the Company
estimates that it could incur additional losses of approximately $0.7 million, The additional costs to the Company of defending any litigation or other proceedings, even if resolved in the Companys favor, could be substantial.



42



---

##### Table of Contents

We rely heavily on electrical, mechanical, civil and structural subcontractors to build and install our distributed
generation systems at our customers facilities based on detailed specifications and drawings that we provide. Often these subcontracted services account for a high percentage of the overall project cost. Our subcontractors failure to
perform their services in a timely and quality manner can lead to significant schedule delays, increased costs and performance issues on our projects. These issues can trigger penalties in our contracts, expose us to claims for liquidated and
consequential damages, increase our warranty exposure, reduce our profits and damage our relationships with customers if not managed appropriately.

Market factors affect our costs and availability of materials.

Our products contain a number of materials, from metals to computer
components. In particular, platinum is a key component of our PEM fuel cells. Platinum is a scarce natural resource and we are dependent upon a sufficient supply of this commodity. Decreases in the availability or increases in the prices of the
commodities or other components of our products could impair our ability to acquire the materials necessary to meet our manufacturing requirements and result in significantly higher prices for those materials, either of which could cause delayed or
lost sales and an increase in our manufacturing costs.

We may be unable to sell our systems and products and generate revenue if we fail to establish
development, engineering, distribution or other strategic relationships.

We currently work with a number of other parties who facilitate and enhance
many aspects of our distributed generation systems business, including technology development, component supply, sales lead generation, engineering support and project installation. We must continue to expand these relationships and develop new
relationships in order to grow our current project-based business. Failure to do so would negatively affect our future sales growth and results of operations.

Because we intend to sell some of our products through third-party distributors or industrial gas companies, the financial benefits to us of commercializing our products will be dependent on the efforts of others. We intend to enter into
additional distribution agreements or other collaborative relationships to market and sell our products. If we are unable to enter into additional distribution agreements, or if our third-party distributors do not successfully market and sell our
products, we may be unable to generate revenue and grow our business. We may seek to establish relationships with third-party distributors who also compete with us. For example, we have signed agreements with industrial gas suppliers who act as
distributors of our hydrogen generators. Because industrial gas suppliers currently sell hydrogen in delivered form, adoption by their customers of our hydrogen generation products could cause them to experience declining demand for delivered
hydrogen. For this reason, industrial gas suppliers may not be motivated to promote our hydrogen generators. Also, these agreements may be terminated by either party with 90 days written notice. If these agreements are terminated, we may be unable
to generate revenue and grow our business. In addition, our third-party distributors may require us to provide volume price discounts and other allowances, or customize our products, either of which could reduce the potential profitability of these
relationships.

We cannot guarantee that we will be successful in our efforts to increase our business in the operations and maintenance of distributed
generation equipment, and we may incur additional risk and liability which could harm our business.

We intend to grow our operating and maintenance
business. This may include operations in less stable countries, which could expose us to unforeseen risks, including war, terrorism, flu pandemics, kidnapping and environmental hazards. Also, maintaining distributed generation equipment may expose
us to additional sources of liability, including performance of equipment, uptime availability of equipment, maintenance and warranty costs.



43



---

##### Table of Contents

We may not recognize revenue in the full amount of our backlog, which could harm our business.

Our backlog was approximately $12.7 million as of September 30, 2007. Our backlog includes orders under contracts that in some cases extend for several years. Our
estimate of the portion of the backlog as of September 30, 2007 from which we expect to recognize revenue in fiscal 2007 is likely to be inaccurate because the receipt and timing of any revenue is subject to various contingencies, many of which
are beyond our control. In addition, we may never realize revenue from some of the engagements that are included in our backlog. The actual accrual of revenue on engagements included in backlog may never occur or may change because a contract could
be reduced, modified or terminated early. If we fail to realize revenue from engagements included in our backlog as of September 30, 2007, our revenue and results of operations for fiscal 2007 as well as future reporting periods may be
materially harmed.

We depend on government contracts for a portion of our revenue and profits and to fund a portion of our research and development
relating to new products.

Our government contracts relate to research and development on renewable energy technologies, hybrid system architectures
and advanced power electronics. Changes in government policy toward distributed generation or budget restrictions may reduce or eliminate funding for these types of research and development activities. Generally, our U.S. government research and
development contracts are subject to the risk of termination at the convenience of the contracting agency and require us to obtain or produce components for our systems from sources located in the United States rather than foreign countries. There
can be no assurance that our current contracts will be fully funded or that we will be able to secure additional government contracts for similar activities in the future. If such funding were discontinued, we may not have sufficient internal
funding to continue with these development efforts and may therefore have to reduce our development of these products, delay their development or abandon them altogether. Discontinuation or delay in our development of proprietary products and
technology could limit our ability to execute our business plan and may have an adverse impact on our ability to increase revenues and generate a profit. We are also subject to annual audits of our incurred costs on government contracts by the
Defense Contracting Audit Agency, or DCAA. If our actual overhead cost included in our incurred costs is less than the allowable overhead costs billed on these contracts, we may be required to refund the excess overhead costs to the government upon
completion of the DCAA audit. Such a refund would negatively affect our financial position and our results of operations in the year in which such costs were incurred.

Further, no assurance can be given that the internal controls we have in place to oversee our government contracts are sufficient to prevent isolated violations of applicable laws, regulations and standards. If the
agencies determine that we or one of our subcontractors engaged in improper conduct, we may be subject to civil or criminal penalties and administrative sanctions, payments, fines and suspension or prohibition from doing business with the
government.

We currently face and will continue to face significant competition, which could cause us to lose sales or render our products and services
uncompetitive or obsolete.

The distributed generation market is highly competitive and evolving rapidly. We face a wide variety of competitors,
including equipment manufacturers, distributors, packagers, system integrators, general contractors, engineering firms, project developers and energy service companies. Many of our competitors are significantly larger and better capitalized than we
are and have greater access to financial and other resources, and therefore may be able to devote more resources to the following activities that may allow them to establish a competitive advantage in the marketplace:



| |  |  | sales and marketing of their products and services;
| | - |  | ---------------------------------------------------



| |  |  | seller financing for the sale of their products or services;
| | - |  | ------------------------------------------------------------



| |  |  | development and commercialization of new technologies;
| | - |  | ------------------------------------------------------



44



---

##### Table of Contents

| |  |  | partnering and other collaborative efforts with sales channel partners, vendors and technology providers;
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | adaptation to changes in customer requirements;
| | - |  | -----------------------------------------------



| |  |  | expanded design, engineering and other performance and service capabilities; and
| | - |  | --------------------------------------------------------------------------------



| |  |  | system and other infrastructure development that reduces costs.
| | - |  | ---------------------------------------------------------------

The markets for delivered hydrogen and reliable backup power are highly competitive. There are a number of companies located in the United States, Canada and abroad that deliver hydrogen, sell hydrogen generation
equipment or are developing PEM fuel cell technology. Many of these companies have substantially greater financial and other resources than we do, including a worldwide presence, name recognition and better historical performance. Each of these
companies has the potential to capture market share in the markets we intend to address, which could cause us to lose sales and prevent us from growing our business. New developments in technology may also delay or prevent the development or sale of
some or all of our products or make our products uncompetitive or obsolete. If this were to occur, we would not be able to generate sufficient revenue to offset the cost of developing our hydrogen generators and regenerative fuel cell systems.

Our regenerative fuel cell systems are one of a number of power technology products being developed today to provide high quality, highly reliable backup
power to the existing electric transmission system, or grid. These products include advanced batteries, ultracapacitors, microturbines, flywheels, internal combustion generator sets, superconducting magnetic energy storage devices, other fuel cell
types and fuel cells using alternative hydrogen supply applications. Improvements are also being made to the existing electric grid. Technological advances in power technology products and improvements in the electric grid may reduce the
attractiveness of our regenerative fuel cell systems.

We depend on our intellectual property, and our failure to protect it could enable competitors to
market products with similar features that may reduce demand for our products.

If we are unable to protect our intellectual property, our competitors
could use our intellectual property to market products similar to ours, which could reduce demand for our products. Our success depends substantially upon the internally developed technology that is incorporated in our products. We rely on patent,
trademark and copyright laws, trade secret protection and confidentiality or license agreements with our employees, customers, strategic partners and others to protect our intellectual property rights. The steps we take to protect our intellectual
property rights, however, may be inadequate. We may be unable to prevent unauthorized parties from attempting to copy or otherwise obtaining and using our products or technology. Policing unauthorized use of our technology is difficult, and we may
not be able to prevent misappropriation of our technology, particularly in foreign countries where the laws may not protect our intellectual property as fully as those in the United States. Others may circumvent the trade secrets, trademarks and
copyrights that we own, and any of the U.S. patents or foreign patents owned by us or subsequently issued to us may be invalidated, circumvented, challenged or rendered unenforceable. In addition, we may not be issued any patents as a result of our
pending and future patent applications, and even if any patents are issued, they may not protect our intellectual property rights, and third parties may challenge the validity or enforceability of issued patents. In addition, other parties may
independently develop similar or competing technologies designed around any patents that may be issued to us.

Most of our intellectual property is not
covered by any patent or patent application. We seek to protect this proprietary intellectual property, which includes intellectual property that may not be patented or patentable, in part by confidentiality agreements with our contactors,
distributors, employees and others. These agreements afford only limited protection and may not provide us with adequate remedies for any breach or prevent other persons or institutions from asserting rights to intellectual property arising out of
these relationships.



45



---

##### Table of Contents

Unauthorized parties may attempt to copy aspects of our products or to obtain and use our proprietary information.
Litigation may be necessary to enforce our intellectual property rights, to protect our trade secrets and to determine the validity and scope of the proprietary rights of others. Any litigation could result in substantial costs, the diversion of
resources and the distraction of management, with no assurance of success.

We could incur substantial costs defending against claims that our products
infringe on the proprietary rights of others.

The patent situation in the field of wind turbine, distributed generation and PEM fuel cell technology
is complex. A large number of patents, including overlapping patents, relating to this technology have been granted worldwide. We are aware of patents in the wind turbine and distributed generation fields held by potential competitors and other
third parties, including Ballard Power Systems Inc., General Electric Company, Asea Brown Boveri Ltd., Siemens AG, Gamesa Corporacion Tecnologica, S.A., ENERCON GmbH and Mitsubishi Corporation. We are also aware of patents in the fuel cell
architecture field held by potential competitors and other third parties, including Ballard Power Systems Inc., General Motors Corporation, Giner, Inc., Oronzio deNora Impianti Elettrochimici S.p.A., Parker-Hannifin Corporation, Hydrogenics
Corporation, Lynntech, Inc., Plug Power Inc., Shinko Pantec Co., Ltd., Siemens AG, Toyota Motor Corporation, United Technologies Corporation and Whatman Inc. Third parties could claim infringement by us with respect to these patents or other patents
or proprietary rights, and we may incur significant costs defending ourselves in such proceedings, and there is no assurance that we will prevail in any such proceeding.

While we have a limited license under a patent held by General Electric Company with respect to variable-speed wind turbines, if we incorporate this type of technology into future wind-related generation products and
are not able to design and engineer non-infringing technology, we may be required to extend or modify our license on this technology. If we are unsuccessful in developing non-infringing technologies, we may be required to cease or redirect our
development efforts or obtain licensing, royalty or other agreements. There can be no assurance that we can obtain such licensing or other agreements on favorable terms or at all, in which case our ability to execute our business plan, grow our
sales and generate a profit may be adversely affected.

In addition, some of our employees are parties to assignment of invention and nondisclosure
agreements with their former employers. These agreements generally grant the former employer rights to technology developed by the employee while employed by the former employer and prohibit disclosure of that technology or other employer
information to third parties. We cannot assure you that such employers will not assert claims against us or our employees alleging a breach of those agreements or other violations of their proprietary rights or alleging rights to inventions by our
employees, or that we would prevail in any such proceeding.

Any infringement claims against us, whether meritorious or not, could:



| |  |  | be time-consuming;
| | - |  | ------------------



| |  |  | result in costly litigation or arbitration and diversion of technical and management personnel; or
| | - |  | --------------------------------------------------------------------------------------------------



| |  |  | require us to develop non-infringing technology or to enter into royalty or licensing agreements.
| | - |  | -------------------------------------------------------------------------------------------------

We might not be successful in developing non-infringing technologies. Royalty or licensing agreements, if required, may not be available on terms acceptable to us, or at
all, and could significantly harm our business and results of operations. A successful claim of infringement against us or our failure or inability to license the infringed or similar technology could require us to pay substantial damages and could
harm our business because we would not be able to sell the affected product without redeveloping the product or incurring significant additional expense. In addition, to the extent we agree to indemnify customers or other third parties against
infringement of the intellectual property rights of others, a claim of infringement could require us to incur substantial time, effort and expense to indemnify these customers and third parties and could disrupt or terminate their ability to use,
market or sell our products.



46



---

##### Table of Contents

International intellectual property protection is particularly uncertain and costly, and we have not obtained or
sought patent or trademark protection in many foreign countries where our products and services may be developed, manufactured, marketed or sold.

Intellectual property law outside the United States is even more uncertain and costly than in the United States and is currently undergoing review and revision in many countries. Further, the laws of some foreign countries may not protect
our intellectual property rights to the same extent as U.S. laws. Moreover, we have not sought, obtained or maintained patent and trademark protection in many foreign countries in which our products and services may be developed, manufactured,
marketed or sold by us or by others.

We may be exposed to lawsuits and other claims if our products or systems malfunction or fail or we fail to
deliver services, which could increase our expenses, harm our reputation and prevent us from growing our business.

Our distributed generation systems
often use new and untested technologies. Many of these new technologies have not reached a level of maturity that allows for a predictable level of reliability and may be subject to malfunction or failure when subjected to prolonged use in non-test
conditions. Should these new technologies fail to perform as specified by their vendors, we may incur significant warranty and other costs and our relationships with our customers may suffer. Also, many vendors of these new technologies have limited
financial resources and may not be able to adequately support their products in the field. All these issues could reduce our growth and profitability. Many of our systems are also located in very remote locations with extremely harsh climates that
are difficult and expensive to access. The possibility of system failures could cause us to incur significant expense to redesign, reengineer, repair and/or replace defective systems or system components. In addition, as we expand our overhaul,
operations and maintenance services business, we may be subject to additional liability for maintaining distributed generation equipment, including performance of equipment, uptime availability of equipment, maintenance and warranty cost.

Because our products are power-producing devices, it is possible that consumers could be injured or killed by our products, whether by product
malfunctions, defects, improper installation or other causes. In particular, hydrogen is a flammable gas and can pose safety risks if not handled properly. We have experienced instances with our products where hydrogen appears to have caused a flame
that burned several components in the system. Further investigation of this unit revealed the presence of pinholes in the cell membranes, resulting in hydrogen leakage and cell failure. We cannot be certain that future similar instances will not
occur. In addition, our products may require modifications to operate properly under extreme temperatures. Potential customers will also rely upon our products for critical needs, such as backup power. A malfunction of our products could result in
significant tort or warranty claims. In addition, a well-publicized actual or perceived problem could adversely affect the markets perception of our products. This could result in a decline in demand for our products, which would reduce our
revenue and harm our business. In addition, since sales of our existing products have been modest and the products we are developing incorporate new technologies and use new installation methods, we cannot predict whether or not product liability
claims will be brought against us in the future or the effect of any resulting adverse publicity on our business. Moreover, we may not have adequate resources in the event of a successful claim against us. We have evaluated the potential risks we
face and believe that we have appropriate levels of insurance for product liability claims. We rely on our general liability insurance to cover product liability claims and have not obtained separate product liability insurance. The successful
assertion of product liability claims against us could result in potentially significant monetary damages, and if our insurance protection is inadequate to cover these claims, we could be required to make significant payments.



47



---

##### Table of Contents

We conduct business in many countries that are politically and economically unstable.

The potential for political unrest, acts of terrorism and war, and economic collapse exists in many countries in which we currently, or may in the future, do business.
The occurrence of any such events at or near the site of our projects could lead to delay, cancellation or significant damage to our projects or equipment. The occurrence of any such events could also cause harm, injury or death to our personnel
working on such projects. Any such events could expose us to significant liabilities and would therefore adversely affect our results of operations and growth.

We also subcontract work or may hire temporary and permanent employees in countries that are politically and economically unstable. It is more difficult to perform background checks on these foreign workers or to be sure that conduct and
performance are in the best interests of our company and in full compliance with applicable laws.

Our current or planned international operations
subject our business to additional risks, which could cause revenues to decline.

A large portion of our revenue is generated from sales of remote
power projects in the oil and gas and telecommunications markets. Many of these projects are sold to foreign entities and are delivered to locations outside of the United States, such as the Middle East, Eurasia, Africa and South America. In
addition, we intend to market our hydrogen generators to small- and medium-volume users of delivered hydrogen worldwide. Selling our services and products internationally exposes us to many additional costs, risks and potential liabilities, which,
if improperly managed, could limit our ability to grow in these markets and adversely affect our results of operations. These include:



| |  |  | exchange controls;
| | - |  | ------------------



| |  |  | complying with U.S. legal requirements for the exporting of goods;
| | - |  | ------------------------------------------------------------------



| |  |  | complying with the commercial, regulatory and legal requirements of foreign markets, particularly in developing countries;
| | - |  | --------------------------------------------------------------------------------------------------------------------------



| |  |  | obtaining and/or enforcing intellectual property protection;
| | - |  | ------------------------------------------------------------



| |  |  | overcoming trade barriers such as duties, tariffs and taxes;
| | - |  | ------------------------------------------------------------



| |  |  | enforcing contract terms and conditions;
| | - |  | ----------------------------------------



| |  |  | collecting receivables;
| | - |  | -----------------------



| |  |  | managing operations and staff across disparate geographic areas; and
| | - |  | --------------------------------------------------------------------



| |  |  | currency risks.
| | - |  | ---------------

In addition, a change in the value
of the U.S. dollar may make our services and products less competitive in international markets.

RISKS RELATING TO OUR INDUSTRY

We may not be able to grow our revenues in the future if a sustainable market for our distributed energy and hydrogen generation products and services does not
develop.

Our future growth will be based in part on increased use of distributed generation, on the development of a mass market, particularly in the
automobile industry, for PEM fuel cells that utilize our hydrogen generators as a fuel source and on growth in the use of renewable energy. These are emerging markets and it is difficult to predict the rate at which they will develop. If a
sustainable market for distributed energy technologies fails to develop or develops more slowly than we anticipate, our ability to grow and achieve profitability will be negatively affected. Many of the factors that influence the rate of adoption of
distributed energy and hydrogen generation technologies are out of our control. Some of these factors that we cannot control are:



| |  |  | utility electric rates;
| | - |  | -----------------------



48



---

##### Table of Contents

| |  |  | changes in federal, state and local regulatory requirements;
| | - |  | ------------------------------------------------------------



| |  |  | changes in federal and state incentives and subsidies;
| | - |  | ------------------------------------------------------



| |  |  | cost, quality, performance and availability of the alternative power generation technologies used or supported by our power systems and hydrogen generators;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | costs and availability of natural gas, diesel, hydrogen and other fuels used in distributed energy technologies;
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | changes in customers perceptions regarding distributed generation, PEM fuel cells and alternative energy;
| | - |  | ----------------------------------------------------------------------------------------------------------



| |  |  | customer reluctance to try new products and technology;
| | - |  | -------------------------------------------------------



| |  |  | availability of financing for distributed generation vendors, developers and users;
| | - |  | -----------------------------------------------------------------------------------



| |  |  | economic downturns and related reductions in capital spending;
| | - |  | --------------------------------------------------------------



| |  |  | demand for and valuation of emissions trading credits generated by distributed generation systems; and
| | - |  | ------------------------------------------------------------------------------------------------------



| |  |  | the emergence of newer, more competitive technologies.
| | - |  | ------------------------------------------------------

If we fail to retain key personnel and attract and retain additional qualified personnel, we may be unable to develop our products and generate revenue.

Our success depends upon the continued service of our executive officers and other key employees such as manufacturing and research and development personnel. The loss of any of our executive officers or key employees
could impair our ability to pursue our growth strategy. We do not have employment agreements with many of our key executives. We may not be able to attract, assimilate or retain additional highly qualified personnel in the future.

We may be affected by skilled labor shortages and labor disputes.

We require experienced engineers, technicians and machinists to conduct our business. No assurance can be given that the supply of these skilled persons will always be adequate to meet our requirements or that we will be able to attract an
adequate number of skilled persons. Labor disputes could also occur at our manufacturing facilities, which may affect our business. While our employees are not currently represented by labor unions or organized under collective bargaining
agreements, labor disputes could occur at any of our facilities.

Declines in the price of utility-delivered electricity or our inability to continue to
reduce the cost of our distributed generation systems could reduce demand for our services and products.

Our distributed generation systems compete
mainly on price per delivered kilowatt-hour of electricity to the end user. In the domestic market, we compete against the cost of electricity delivered by the local utilities through the electric grid. The cost of electricity varies widely from
utility to utility and from state to state and is subject to change based on factors beyond our control. We cannot accurately predict what future electricity rates will be and whether or not we can compete effectively against these rates.

The cost per delivered kilowatt-hour of electricity generated by our on-site power systems is also based primarily on the following three factors: the
cost of the underlying generating technologies, the cost of financing, and the cost of fuel. All these factors are outside of our control.



49



---

##### Table of Contents

| |  |  | Costs of alternative power generation technologies like solar panels and wind turbines have generally been falling over the past several years, but there can be no
assurance that they will continue to fall in the future. Without federal or state subsidies or incentives, the cost of these technologies is often not competitive with traditional generating technologies or the cost of utility power. If the costs of
these alternative technologies do not continue to fall or subsidies are no longer available, our ability to sell systems and services based on these technologies will be diminished.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Financing costs are critical to the cost competitiveness of renewable energy. Since fuel from the wind or sun is free, financing costs represent the single largest
operating cost. Financing costs are also highly variable and subject to change beyond our control. If financing costs increase, it could reduce demand for our products.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | For reciprocating engine or turbine-based power systems, fuel is the largest operating cost. The predominant fuel for these systems is natural gas. The price of
natural gas has been highly volatile and is currently projected to remain high for several years based on increased demand and limited domestic supply. Sustained high gas prices reduce the economic benefit of the on-site power systems we sell and
may therefore cause us to experience reduced sales and revenue growth.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Utility companies could place barriers to our entry into the
market, and we may not be able to effectively sell our products and systems.

Utility companies could place barriers on the installation of our
products and systems or their interconnection with the electric grid. Further, they may charge additional fees to customers who install on-site generation systems, thereby reducing the electricity they take from the utility, or who use power from
the grid for backup or standby purposes. These types of restrictions, fees or charges could impair the ability of our potential customers to install or effectively use our products and systems or increase the cost to our potential customers for
using our products and systems. This could make our products and systems less desirable, thereby adversely affecting our revenue and profitability potential.

Decreases in the price of oil and gas could reduce demand for our distributed generation systems, which would harm our ability to grow our business.

A large portion of our current revenue is generated from the sale of remote power systems to the international oil and gas industry for use on remote pipelines and offshore platforms. Demand for our power systems from
this market segment depends in part on the current and future commodity price of oil and gas. Higher oil and gas prices stimulate increased development of remote oil and gas fields and related infrastructure, which in turn stimulates increased
demand for remote power systems of the type we supply. Conversely, lower oil and gas prices would reduce demand for current systems and have a negative impact on our growth.

Most of our wind turbine products are sold for use in power systems used by remote communities to replace or augment internal combustion engines. Demand for our wind turbines from this market segment depends in part
on the current and future commodity prices of oil and gas. Higher oil and gas prices provide incentives for customers to invest in technologies such as wind turbines that reduce their need for petroleum-based fuels. Conversely, lower oil and gas
prices would tend to reduce the incentive for customers to invest in capital equipment to produce electrical power.

Continued uncertainty in domestic
and world economies and energy markets may limit our growth.

Current uncertainty among our target customers over the health of the economy and its
impact on their business has restricted their capital spending and made it harder for us to sell our distributed generation systems and services. Other market uncertainties that also affect our ability to increase sales include the



50



---

##### Table of Contents

future of deregulation of the domestic electricity market, the future price of oil and natural gas, political instability in the Middle East and other
regions where we do business, and domestic and international policy responses to environmental issues.

Because sales of our distributed generation
systems are reliant in part on federal and state subsidies and incentives, any reduction in federal or state subsidy programs could harm our business.

The domestic market for our distributed generation systems currently benefits from many federal and state programs designed to promote increased use of renewable and distributed generation technologies. The federal government, for example,
offers tax credits for energy produced by wind and solar generators. States like California, New York, New Jersey, Connecticut and Massachusetts offer cash incentives which reduce the initial capital cost to customers who invest in renewable and
distributed generation systems. All these federal and state incentive and subsidy programs have specific expiration dates and there can be no assurance that these programs will be extended. Termination of one or more of these programs may have an
adverse impact on our future growth. Additionally, there can be no assurance that new programs will be created. In an economic downturn, with resulting budget deficits, funding for many of the state programs may be at risk of being diverted to other
needs.

Government regulations may impair our ability to market and sell our products.

Our products and projects are potentially subject to federal, state, local and foreign laws and regulations governing, among other things, waste water discharge and air
emissions as well as laws relating to occupational health and safety. We may incur substantial costs or liabilities in complying with governmental regulations. Our potential customers must also comply with numerous laws and regulations, which could
affect their interest in our products and projects. We could incur potentially significant expenditures in complying with environmental and health and safety laws, regulations and requirements that may be adopted or imposed in the future.

Electricity generation and delivery are both heavily regulated by federal and state governments. While deregulation and restructuring of the U.S. power
industry may ultimately expand the market for distributed generation systems of the type that we sell, recent problems associated with deregulation in key domestic markets like California may impose additional barriers to distributed generation.
California and other states, for example, allow utilities to impose exit fees, standby charges and other penalties on customers who install distributed generation systems. Federal and state regulations regarding air quality and interconnection to
the utility grid also impose additional costs and potential liabilities on our business. Changes in these regulations could reduce or eliminate our access to certain of our target markets. Changes in regulatory standards or policies could reduce the
level of investment in the research and development of alternative power sources. Any reduction or termination of such programs can increase the cost to our potential customers, making our systems less desirable, and thereby adversely affecting our
revenue and results of operations.

Compliance with environmental regulations can be expensive, and noncompliance with these regulations may result in
adverse publicity and potentially significant monetary damages and fines.

We are required to comply with all federal, state, local and foreign
regulations regarding protection of the environment. If more stringent regulations are adopted in the future, the costs of compliance with these new regulations could be substantial. If we fail to comply with present or future environmental
regulations, we may be required to pay substantial fines, suspend production or cease operations. We use, generate and discharge toxic, volatile and otherwise hazardous chemicals and wastes in our research and development and manufacturing
activities. Any failure by us to control the use of, or to restrict adequately the discharge of, hazardous substances could subject us to potentially significant monetary damages and fines or suspensions in our business operations. In addition,
under some foreign, federal and state statutes and regulations, we may be deemed responsible for investigative and remedial costs at formerly owned or operated locations, or at third party sites at which our wastes were disposed.



51



---

##### Table of Contents

OTHER RISKS

Our
stock may be delisted, which would affect its ability to be readily traded

On September 14, 2007, we received a notification from
the NASDAQ Listing Qualifications Department providing notification that, for the last 30 consecutive business days, the bid price of our common stock has closed below the minimum $1.00 per share requirement for continued inclusion under NASDAQ
Marketplace Rule 4450(a)(5). In accordance with NASDAQ Marketplace Rule 4450(e)(2), we have been provided 180 calendar days, or until March 12, 2008, to regain compliance. To regain compliance, the bid price of our common stock must close at
$1.00 per share or more for a minimum of ten consecutive business days at any time before March 12, 2008. If we do not regain compliance, our common stock will be delisted. If our common stock is delisted, the liquidity and marketability of
shares of our common stock will decrease.

Our stock price is likely to be highly volatile and may result in substantial losses for investors purchasing
shares.

The market price of our common stock is likely to continue to be highly volatile. The stock market in general and the market for
technology-related stocks in particular, has been highly volatile. As a result, investors in our common stock may experience a decrease in the value of their common stock regardless of our operating performance or prospects. Our common stock may not
trade at the same levels as other technology-related stocks, and technology-related stocks in general may not sustain their current market prices. In addition, an active public market for our securities may not be sustained.

The trading price of our common stock could be subject to wide fluctuations in response to:



| |  |  | our perceived prospects;
| | - |  | ------------------------



| |  |  | variations in our operating results and achievement of key business targets;
| | - |  | ----------------------------------------------------------------------------



| |  |  | changes in securities analysts recommendations or earnings estimates;
| | - |  | ----------------------------------------------------------------------



| |  |  | the inclusion of a going concern modification in our independent registered public accountants audit report;
| | - |  | -------------------------------------------------------------------------------------------------------------



| |  |  | differences between our reported results and those expected by investors and securities analysts;
| | - |  | -------------------------------------------------------------------------------------------------



| |  |  | announcements of new products by us or our competitors;
| | - |  | -------------------------------------------------------



| |  |  | market sentiment toward power technology and alternative energy stocks in general or to us in particular;
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | trading of options or other derivatives on our common stock;
| | - |  | ------------------------------------------------------------



| |  |  | market reaction to any acquisition, joint venture or strategic investments announced by us or our competitors; and
| | - |  | ------------------------------------------------------------------------------------------------------------------



| |  |  | general economic or stock market conditions unrelated to our operating performance.
| | - |  | -----------------------------------------------------------------------------------

In the past, securities class action litigation has often been instituted against companies following periods of volatility in their stock price. This type of litigation could result in substantial costs and divert
managements attention and resources.



52



---

##### Table of Contents

Our executive officers, directors and their affiliates hold a large percentage of our stock and their interests may
differ from other stockholders.

Our directors, executive officers and individuals or entities affiliated with our directors as a group beneficially
own, approximately 5.5% of our outstanding common stock at November 2, 2007. The interests of these stockholders may differ substantially from the interests of other stockholders. If these stockholders choose to act or vote together,
they will have the power to significantly influence the election of our directors, and the approval of any other action requiring the approval of our stockholders, including any amendments to our certificate of incorporation and mergers or sales of
substantially all of our assets. In addition, without the consent of these stockholders, we could be prevented from entering into transactions that could be beneficial to us or our other stockholders. Also, third parties could be discouraged from
making a tender offer or bid to acquire us at a price per share that is above the then-current market price.

Provisions of our certificate of
incorporation and bylaws and Delaware law could inhibit a takeover that stockholders may consider favorable and diminish the voting rights of the holders of our common stock.

There are provisions in our certificate of incorporation and bylaws that make it more difficult for a third party to acquire, or attempt to acquire, control of us, even if a change in control may be considered
favorable by our stockholders. For example, our board of directors has the authority to issue up to 5,000,000 shares of preferred stock. The board of directors can fix the price, rights, preferences, privileges and restrictions of the preferred
stock without any further vote or action by our stockholders. The issuance of shares of preferred stock may delay or prevent a change in control transaction. As a result, the market price of our common stock and the voting and other rights of our
stockholders may be adversely affected. The issuance of shares of preferred stock may result in the loss of voting control to other stockholders.

Our
certificate of incorporation and bylaws contain other provisions that could have an anti-takeover effect, including:



| |  |  | only one of the three classes of directors is elected each year;
| | - |  | ----------------------------------------------------------------



| |  |  | stockholders have limited ability to remove directors;
| | - |  | ------------------------------------------------------



| |  |  | stockholders cannot take actions by written consent;
| | - |  | ----------------------------------------------------



| |  |  | stockholders cannot call a special meeting of stockholders; and
| | - |  | ---------------------------------------------------------------



| |  |  | stockholders must give advance notice to nominate directors or submit proposals for consideration at stockholder meetings.
| | - |  | --------------------------------------------------------------------------------------------------------------------------

In addition, we are subject to the anti-takeover provisions of Section 203 of the Delaware General Corporation Law, which regulates corporate acquisitions. These
provisions could discourage potential acquisition proposals and could delay or prevent a change in control transaction. They could also have the effect of discouraging others from making tender offers for our common stock. These provisions may also
prevent changes in our management.

Because we do not intend to pay dividends, stockholders will benefit from an investment in our common stock only if
it appreciates in value.

We anticipate that we will retain our earnings to support operations and to finance the growth and development of our
business and do not expect to pay cash dividends in the foreseeable future. As a result, the success of an investment in our common stock will depend upon any future appreciation in its value. There is no guarantee that our common stock will
appreciate in value or even maintain the price at which stockholders have purchased their shares.



53



---

##### Table of Contents

|ITEM 2. | Unregistered Sales of Equity Securities and Use of Proceeds
|------- | -----------------------------------------------------------

On
August 24, 2007, pursuant to the terms of the securities purchase agreement, we closed on a $15.0 million loan by Perseus to us. The net amount received by us was $2,140,411, after deduction of the principal and interest due on the outstanding
senior secured promissory note issued by us to Perseus on June 1, 2007, or the initial note. In connection with this loan, the initial note was repaid and cancelled, and we executed a senior secured convertible promissory note in favor of
Perseus, or the subsequent convertible note, and issued to Perseus a subsequent investment warrant, or the subsequent warrant. The subsequent convertible note has an original principal amount of $15.0 million, bears interest at a rate of
12.5% per annum, compounded quarterly, and is due in full on November 30, 2008 or earlier upon an event of default, a change of control of us or the liquidation or dissolution of us. We may choose to pay the interest in cash or in kind by
the issuance of additional senior secured convertible promissory notes, or the additional convertible notes. At Perseuss election, the principal and any unpaid interest under the subsequent convertible note are convertible immediately after
issuance into shares of our common stock at a conversion price of $0.57 per share. Assuming that (a) we pay all interest estimated to be $2,544,415 in kind and (b) Perseus fully converts the subsequent convertible note of $15 million and
all of the additional convertible notes, Perseus would receive 30,779,675 shares of our common stock. The loan is secured by a security interest on all of our assets and those of its subsidiaries. The subsequent warrant is exercisable for five years
and gives Perseus the right to purchase up to 34,989,629 shares of our common stock at exercise prices ranging from $0.80 to $3.00 per share. These issuances were made in a private placement in reliance upon an exemption from registration under
Section 4(2) of the Securities Act. Jefferies & Company, Inc., received a commission of $168,750 for acting as sole placement agent in connection with the transaction.



|ITEM 4. | Submission of Matters to a Vote of Security Holders
|------- | ---------------------------------------------------

At our annual meeting of stockholders held on August 21, 2007, our stockholders approved the following:

(1) To elect each of the following directors as a class I director for a three-year term to extend until our 2010 annual meeting of stockholders and until his successor is duly elected and qualified:



|                     |  |            |  |           |  |         |  |                 
|-------------------- |  | ---------- |  | --------- |  | ------- |  | ----------------
|Nominee              |  | For        |  | Withheld  |  | Abstain |  | Broker Non-Votes
|Paul F. Koeppe       |  | 31,966,787 |  | 2,496,240 |  |        |  |                
|Ambrose L. Schwallie |  | 31,593,342 |  | 2,869,685 |  |        |  |                

(2) To approve the issuance of more than 20% of the outstanding shares of common stock upon the
conversion of a proposed $15.0 million senior secured convertible promissory note and the exercise of a related warrant and any change of control that may result therefrom:



|           |  |           |  |         |  |                 
|---------- |  | --------- |  | ------- |  | ----------------
|For        |  | Against   |  | Abstain |  | Broker Non-Votes
|12,903,870 |  | 1,588,949 |  | 396,279 |  | 19,573,929      

(3) To approve an amendment to our certificate of incorporation to increase the authorized number
of common shares from 65,000,000 to 250,000,000:



|           |  |           |  |         |  |                 
|---------- |  | --------- |  | ------- |  | ----------------
|For        |  | Against   |  | Abstain |  | Broker Non-Votes
|30,295,537 |  | 3,788,010 |  | 379,480 |  |                

(4) To approve an amendment to our certificate of incorporation to authorize a reverse stock
split:



|           |  |           |  |         |  |                 
|---------- |  | --------- |  | ------- |  | ----------------
|For        |  | Against   |  | Abstain |  | Broker Non-Votes
|29,371,260 |  | 4,752,838 |  | 338,929 |  |                



54



---

##### Table of Contents

|ITEM 5. | Other Information
|------- | -----------------



|ITEM 6. | Exhibits
|------- | --------



|              |  |                                                                                                                                                                                                                                      
|------------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit   3.1 |  |  Third Amended and Restated Certificate of Incorporation of the Registrant (incorporated herein by reference to exhibit 3.1 of the
companys report on Form 8-K filed August 27, 2007)                                              
|              | 
|Exhibit 10.1  |  |  Senior Secured Convertible Promissory Note dated August 24, 2007 between the registrant and Perseus Partners VII, L.P. (incorporated
herein by reference to exhibit 10.1 of the companys report on Form 8-K filed August 27, 2007)
|              | 
|Exhibit 10.2  |  |  Subsequent Investment Warrant dated August 24, 2007 between the registrant and Perseus Partners VII, L.P. (incorporated herein by
reference to exhibit 10.2 of the companys report on Form 8-K filed August 27, 2007)             
|              | 
|Exhibit 10.3  |  |  Letter Agreement between the Registrant and Perseus Partners VII, L.P. (incorporated herein by reference to exhibit 10.3 of the
companys report on Form 8-K filed August 27, 2007)                                                
|              | 
|Exhibit 10.4  |  |  Form of Indemnification Agreement between the Registrant and Perseus Partners VII, L.P. (incorporated herein by reference to exhibit
10.4 of the companys report on Form 8-K filed August 27, 2007)                               
|              | 
|Exhibit 10.5  |  |  Amendment to Employment Agreement between the Registrant and Walter W. Schroeder (incorporated herein by reference to exhibit 10.1 of
the companys report on Form 8-K filed October 1, 2007)                                      
|              | 
|Exhibit 31.1  |  |  Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                            
|              | 
|Exhibit 31.2  |  |  Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                                                                                                            
|              | 
|Exhibit 32.1  |  |  Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                            
|              | 
|Exhibit 32.2  |  |  Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                                                                                                                                            

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.



|                       |  |                                  |  |                                
|---------------------- |  | -------------------------------- |  | -------------------------------
|Date: November 9, 2007 |  | DISTRIBUTED ENERGY SYSTEMS CORP.
|                       |  | (Registrant)                    
|                       |  |                                 
|                       |  | By:                              |  | /s/ Bernard H. Cherry          
|                       |  |                                  |  | Bernard H. Cherry              
|                       |  |                                  |  | Interim chief executive officer
|                       |  |                                  |  | (Principal Executive Officer)  
|                       |  |                                 
|                       |  | By:                              |  | /s/ Peter J. Tallian           
|                       |  |                                  |  | Peter J Tallian                
|                       |  |                                  |  | Chief Financial Officer        
|                       |  |                                  |  | (Principal Financial Officer)  



55