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UNITED STATES
SECURITIES AND EXCHANGE COMMISSIONWASHINGTON, DC 20549

FORM 10-K/A

|(Mark One)                                                   |                                                                                      
|------------------------------------------------------------ | -------------------------------------------------------------------------------------
|ý                                                            | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
|For the fiscal year ended December 31, 2002                 
|OR                                                          
|o                                                            | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE OF 1934
|For the transition period
from                            to

Commission File Number 0-15472

Environmental Power Corporation(Exact name of registrant as specified in its charter)

|Delaware(State or other jurisdiction of incorporation or organization) |  | 04-2782065(IRS Employer Identification No.)
|---------------------------------------------------------------------- |  | -------------------------------------------

One Cate Street, Portsmouth, New Hampshire 03801(Address of principal executive offices) (Zip code)

(603) 431-1780Registrant's telephone number, including area code

Securities
registered pursuant to Section 12(g) of the Act: Common Stock, $.01 par value

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 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 ý    No o

Indicate
by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of
registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-K or any amendment to the
Form 10-K. o

The
aggregate market value of voting stock (common stock, $.01 par value) held by non-affiliates, computed by reference to the closing price of such stock, was $4,526,317 on
June 28, 2002.

Indicate
by check mark whether the registrant is an accelerated filer (as defined in Exchange Act
Rule 12b-2). Yes o    No ý

Indicate
the number of shares outstanding of each of the registrant's classes of common stock, as of the last practicable date: On April 15, 2003 there were 21,791,279 outstanding
shares of Common Stock, $.01 par value, of the registrant.

DOCUMENTS INCORPORATED BY REFERENCE

None

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TABLE OF CONTENTS

|Description of Contents                                                 |  | Page #
|----------------------------------------------------------------------- |  | ------
|PART III:                                                               |  |       
|Item 10. Directors and Executive Officers                               |  | 2     
|Item 11. Executive Compensation                                         |  | 4     
|Item 12. Security Ownership of Certain Beneficial Owners and Management |  | 7     
|Item 13. Certain Relationships and Related Transactions                 |  | 9     
|Signature page                                                          |  | 10    

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PART III

Item 10. DIRECTORS AND EXECUTIVE OFFICERS

The following table sets forth the age and principal occupation of each of our directors during the past five years. Except for Mr. Blampied, who is a
director for Access Capital Strategies, 124 Mount Auburn Street, Cambridge, MA 02138 and a trustee for Northeast Investors Trust, 50 Congress Street, Boston, MA 02109, Mr. Weisberg who is a
trustee for Monterey Mutual Fund, 1299 Ocean Avenue, Suite 210, Santa Monica, California 90401, Mr. Thomas M. Matthews, who is a director of EOTT Energy Corp., 2000 W. Sam Houston Parkway,
Suite 400, Houston, TX 77042, and Mr. Knight who is a director of DBS Industries Inc., 100 Shoreline Hwy, Suite 190A, Mill Valley, CA 94941, Avista Corporation, PO Box 3727, Spokane, WA
99220, and Alaska Air Group, Seattle, Washington 98268-0947 none of the other directors holds any other directorships in any company subject to the reporting requirements of the Securities
Exchange Act of 1934 or in any company registered as an investment company under the Investment Company Act of 1940.

|Name                   |  | Age |  | Principal Occupation                                                                                                                                                                                                                                                                                                                                                                                                                                              
|---------------------- |  | --- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Joseph E. Cresci       |  | 60  |  | Chairman and Chief Executive Officer of EPC (1982present)                                                                                                                                                                                                                                                                                                                                                                                                        
|Donald A. Livingston   |  | 60  |  | President and Chief Operating Officer of EPC (1991present); President of Microgy (July 2001present)                                                                                                                                                                                                                                                                                                                                                             
|Peter J. Blampied      |  | 60  |  | Trustee, Northeast Investors Trust (2000 to present); President, Corcoran Management Company (1998present); Director, Access Capital Strategies (1997present); Director, Nellie Mae (1982present); CEO, Boston Five Bancorp
(19891993); Director, A.W. Perry, Inc. (1998present); Director, Citizens Bank of Massachusetts (19961999); Director, Citizens Financial Group, Inc. (19941996)                                                                 
|Robert I. Weisberg     |  | 57  |  | President and Chief Executive Officer, Alco Financial Services, LLC (1997present); Trustee, Monterey Mutual Fund (1998present); President and Chief Executive Officer, Pro-Care Financial Group, Inc. (19941997)                                                                                                                                                                                                                                               
|Thomas M. Matthews     |  | 59  |  | Chief Executive Officer, Chairman and Director, EOTT Energy Corp. (2002present); Director, Global Water Technologies, Inc. (19992002); Chairman and Chief Executive Officer, Avista Corporation (19982001); President and Director, NGC
Corporation (19961998); Vice President, Texaco, Inc. (19891996)                                                                                                                                                      
|August Schumacher, Jr. |  | 63  |  | Managing Director, Washington D.C. Operations, SJH and Co., (2001present); Consultant, W.K.K. Kellogg Foundation (2001present); Under Secretary of Farm and Foreign Agricultural Service, U.S. Dept of Agriculture (19972001);
Administrator, Foreign Agricultural Service, U.S. Dept. of Agriculture (19941997); Senior Agricultural Project Manager, World Bank (19901994); Commissioner of Food and Agriculture, Commonwealth of Massachusetts (19841990)
|Jessie J. Knight, Jr.  |  | 52  |  | President and Chief Executive Officer, San Diego Regional Chamber of Commerce (1998Present); Executive Vice President, Navillus Associates, LLC (1998Present); Director, Avista Corporation (1999Present); Director Alaska Air Group
(2002Present); Managing Commissioner, Electric, Gas and Telecommunications, California Public Utilities Commission (19931998)                                                                                           

2

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Pursuant
to the Share Exchange Agreement under which we acquired control of Microgy in July 2001, our Board of Directors was enlarged from five to eight members
and the three resulting vacancies were filled by designees of the Principal Microgy Shareholders, as defined in the Share Exchange Agreement. Such designees, including replacements or substitutes
similarly designated, are referred to as the Microgy Designees. The current Microgy Designees on the Board are Thomas M. Matthews, August Schumacher, Jr., and Jessie J. Knight, Jr.

In
connection with the Share Exchange Agreement, EPC, the Principal Microgy Shareholders, Joseph E. Cresci, and Donald A. Livingston entered into a Stockholders' Agreement dated
July 23, 2001. Messrs. Cresci and Livingston, referred to in the Stockholders' Agreement as the Majority Stockholders, are directors, officers, and principal stockholders of EPC. The
five existing directors as of July 23, 2001, including any replacements or substitutes designated by the majority Stockholders, are referred to as the Incumbent Directors. The Stockholders'
Agreement, which terminates on June 30, 2003, provides, among other things, that the parties will take all lawful action, including voting the shares they own or control, to cause the
proportion of Microgy Designees to Incumbent Directors to remain at approximately 3:5 and for the election of the Microgy Designees and the Incumbent Directors. There is currently a vacancy among the
Incumbent Directors.

EPC's
executive officers, who are elected annually by the Board of Directors and serve at the discretion of the Board, are listed in Item 4A of this Report on
Form 10-K.

Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Securities Exchange Act of 1934, as amended, requires our Officers and Directors, and persons who own more than ten percent of a
registered class of our equity securities, to file initial statements of beneficial ownership (Form 3), and statements of changes in beneficial ownership (Forms 4 or 5), of Common Stock and
other equity securities of EPC with the Securities and Exchange Commission, or SEC. Officers, directors and greater than ten percent stockholders are required by SEC regulation to furnish us with
copies of all such forms they file.

We
believe, based solely on our review of the copies of forms we have received, or written representations from certain reporting persons, that no additional forms were required for
those persons and that our officers, directors and greater than ten-percent beneficial owners complied with all filing requirements applicable to them for 2002, except that Form 3
for Mr. Macartney was filed 5 days late, Form 3s for Messrs. Schumacher, Matthews and Knight were filed 36 days late, a Form 4 for Mr. Cresci reporting
a 5,000 share purchase was filed 62 days late and a Form 4 for Mr. Weisberg, reporting options for 10,000 shares granted under the 1993 Directors Option Plan, was filed
5 days late.

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Item 11. EXECUTIVE COMPENSATION

Compensation of Executive Officers

Summary Compensation Table:The following table sets forth certain information with respect to the annual and
long-term compensation of our Chief Executive Officer, Chief Operating Officer and each other executive officer earning in excess of $100,000 in salary and bonus in 2002 for the three
fiscal years ended December 31, 2002. Such persons are referred to as the Named Executives.

|                                                                 |  |                |  |     |                         |  |   | Long-Term Compensation
|---------------------------------------------------------------- |  | -------------- |  | --- | ----------------------- |  | - | ----------------------
|
|
|
|Joseph E. Cresci
Chairman, Chief Executive Officer and Secretary |  | 2002
2001
2000 |  | $$$ | 400,000
285,417
150,000 |  | $ | 

350,000           
|Donald A. Livingston
President and Chief Operating Officer       |  | 2002
2001
2000 |  | $$$ | 400,000
285,417
150,000 |  | $ | 

350,000           
|R. Jeffrey Macartney(1)
Chief Financial Officer and Treasurer    |  | 2002
2001
2000 |  | $   | 109,333

             |  |   | 

                 

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Stock Option Grants:The following table contains information concerning the grant of stock options made during 2002 under
the Company's 2001 Stock Incentive Plan to the Named Executives:

Option Grants in 2002

|Name                 |  | Number of Securities
Underlying Options Granted |     | % of Total Options Granted to
Employees in 2002 |   | Exercise
Price ($/Sh) |      | Expiration
Date |           | Value of Option at
Time of Issue |  
|-------------------- |  | ----------------------------------------------- | --- | ----------------------------------------------- | - | --------------------- | ---- | --------------- | --------- | -------------------------------- | -
|Joseph E. Cresci     |  | 0                                               |     | 0.00                                            | % | $                     |     |                 | 0         |                                  | $
|Donald A. Livingston |  | 0                                               |     | 0.00                                            | % | $                     |     |                 | 0         |                                  | $
|R. Jeffrey Macartney |  | 100,000                                         | (1) | 9.17                                            | % | $                     | 0.58 |                 | 5/22/2012 |                                  | $

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Option Exercises and Year-End Value Table:The following table sets forth information regarding the exercise of
stock options during 2002 and the number and value of unexercised options held at December 31, 2002 by each Named Executive.

Aggregated Option Exercises in 2002 and 2002 Year-End Option Values

|Name                 |  | Shares Acquired on Exercise(#) |  | Value Realized($) |  | Number of Securities Underlying Unexercised
Options at
December 31, 2002
Exercisable/Unexercisable |  | Value of Unexercised "In-the-Money" Options at December 31, 2002 Exercisable/Unexercisable(1)
|-------------------- |  | ------------------------------ |  | ----------------- |  | -------------------------------------------------------------------------------------------------- |  | ---------------------------------------------------------------------------------------------
|Joseph E. Cresci     |  |                               |  |                  |  | 0/0                                                                                                |  | $0                                                                                           
|Donald A. Livingston |  |                               |  |                  |  | 0/0                                                                                                |  | $0                                                                                           
|R. Jeffrey Macartney |  |                               |  |                  |  | 0/100,000                                                                                          |  | $0/$0                                                                                        

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Defined
Benefit Pension Plan: Effective January 1, 1998 we established a non-contributory defined benefit pension plan covering all of our employees who are at least
21 years of age and who have completed at least one year of service. Under the Plan, the benefits payable to each employee at
normal retirement age 62 are based on years of service and compensation during the three consecutive years of the latest 10 years immediately preceding retirement which would yield the highest
monthly benefit payment. Employees who have at least 20 years of service at the time of their retirement would receive the maximum retirement benefit. Our general funding policy is to
contribute annually to the Plan the maximum amount that can be deducted for Federal income tax purposes.

Effective
January 1, 2003 we amended the Plan to provide that benefits earned after 2002 will accrue at the rate of 1.5% of average compensation (with no cap on service) and will
be payable at age 65 rather than age 62. Existing accrued benefits will remain intact. The amended Plan has a two-year waiting period before employees enter the Plan, rather than one year.
Employees who join the Plan after two years will be fully vested at that time.

The
following table shows the estimated annual pension benefits payable upon retirement to a participant of the Plan for various salary levels and years of service.

Years of ServiceAverage Annual Compensation10

15

20

25100,000

15,000

22,500

30,000

37,500150,000

22,500

33,750

45,000

56,250200,000

30,000

45,000

60,000

75,000250,000

30,000

45,000

60,000

75,000


During
fiscal year 2002, the maximum amount of annual compensation which may be included for Plan purposes was $200,000. The figures shown above apply under the Plan as amended. The
benefit amounts listed are not subject to any deduction for Social Security or other offset amounts. As a result of limitations imposed under the Federal income tax law, the maximum annual benefit
payable under the Plan for the fiscal year ending December 31, 2002 is $160,000, although the amount will be actuarially adjusted in accordance with Federal income tax regulations if payments
commence prior to or following the date that unreduced Social Security benefits become payable. As of December 31, 2002, Messrs. Cresci and Livingston each had twenty years of credited
service under the Plan.

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Employment Agreement

While not party to a formal Employment Agreement, in April 2002 EPC and Mr. Macartney executed summary terms of employment of Mr. Macartney
as Chief Financial Officer of EPC. Under such terms, Mr. Macartney receives a base salary of $160,000 annually, subject to discretionary salary increases and annual discretionary bonuses
determined by the Chief Executive Officer. Mr. Macartney received a 100,000 share option grant in May 2002 upon election as CFO and is eligible for an annual discretionary option grant
to be determined by the CEO. EPC provides a leased vehicle for Mr. Macartney's use. Mr. Macartney is an at-will employee. However, in the event Mr. Macartney's
employment is terminated as a result of a new CEO hiring a new CFO, Mr. Macartney will receive one year's severance and benefits, including health coverage and use of the company leased vehicle
for one year. Mr. Macartney would then also be granted an additional 100,000 options to purchase common stock. All 200,000 options granted would become immediately vested and would remain
exercisable based on the dates in the stock option agreements. In the event Mr. Macartney's employment is terminated for any other reason, he will receive six months severance and benefits,
including but not limited to health coverage and use of the company leased vehicle for six months. The existing 100,000 options would become immediately vested and be exercisable based on the dates in
the stock option agreement.

Compensation of Directors

Each director of EPC who is not an officer or employee of EPC receives $2,000, plus expenses, for each scheduled meeting of the Board of Directors or
non-coincident meeting of a board committee which he or she attends. Additionally, each non-employee director may receive option grants under our 1993 Director Option Plan:
40,000 options on the first anniversary of service and 10,000 options on subsequent anniversaries. The 1993 Director Option Plan will expire on July 13, 2003. Under our 2002 Director Option
Plan each non-employee director first elected on or after July 25, 2002, the date of our 2002 Annual Meeting, receives 50,000 options on the date of such first election or
appointment. In addition, regardless of when first elected, each non-employee director will receive a grant of 50,000 options on each anniversary date of such director's election or
appointment. A grant under the 1993 Director Option Plan within twelve months prior to a grant under the 2002 Director Stock Option Plan will reduce such grant under the 2002 Director Option Plan.

During
2002, Messrs. Blampied and Weisberg each received option grants under our 1993 Director Option Plan to purchase 10,000 shares which are exercisable at per share prices of
$0.65 and $0.62 respectively, based on the market prices of the Common Stock on their anniversary dates of becoming directors. Messrs. Knight, Matthews, and Schumacher each received option
grants under the new 2002 Director Option Plan to purchase 50,000 shares which are exercisable at the per share price of $0.40.

Furthermore,
Mr. Schumacher received a grant of 50,000 options under our 2001 Stock Incentive Plan in recognition of his especially valuable contributions as a Director in the
development of Microgy, which are exercisable at the per share price of $0.20.

Compensation Committee Interlocks and Insider Participation

The Compensation Committee is comprised of Jessie Knight, Jr., August Schumacher, Jr., and Robert Weisberg. No member of the Compensation Committee is now an
officer or an employee of EPC or any of its subsidiaries or has been at any time an officer or employee of EPC or any of its subsidiaries. Mr. Weisberg is a principal of Alco Financial
Services, LLC, which is a lender to EPC. The loan transaction with Alco is described in Item 13 below.

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Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth as of April 15, 2003 the name of each person who, to our knowledge, owned beneficially more than 5% of the shares of Common
Stock of EPC outstanding at such date, the number of shares owned by each of such persons and the percentage of the class represented thereby.

|Name and Address of Beneficial Owner                                                                     |  | Amount and Nature of Beneficial Ownership(1) |     | Percentage of Class |  
|-------------------------------------------------------------------------------------------------------- |  | -------------------------------------------- | --- | ------------------- | -
|Joseph E. Cresci
c/o Environmental Power Corporation
One Cate Street, 4th Floor
Portsmouth, NH 03801     |  | 4,903,348                                    | (2) | 22.5                | %
|Donald A. Livingston
c/o Environmental Power Corporation
One Cate Street, 4th Floor
Portsmouth, NH 03801 |  | 2,461,739                                    |     | 11.3                | %
|Benjamin J. Brant
7553 S. Gartner Road
Evergreen, CO 80439                                               |  | 1,892,692                                    | (3) | 8.7                 | %
|Michael Kast
1767 Denver West Boulevard
Golden, CO 80401                                                 |  | 1,656,968                                    |     | 7.6                 | %

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The
following table sets forth as of April 15, 2003 the number and percentage of outstanding shares of Common Stock beneficially owned by our Named Executives,
Directors, and Directors and Officers as a group.

|Name of Director & Date
First Became a Director or
Name of Officer |  | Positions and Offices                                      |  | Amount and Nature of Beneficial Ownership(1) |      | Percentage of Class |  
|------------------------------------------------------------------ |  | ---------------------------------------------------------- |  | -------------------------------------------- | ---- | ------------------- | -
|Joseph E. Cresci1982                                              |  | Chairman, Chief Executive Officer, Secretary, and Director |  | 4,903,348                                    | (2)  | 22.5                | %
|Donald A. Livingston1982                                          |  | President, Chief Operating Officer and Director            |  | 2,461,739                                    |      | 11.3                | %
|Robert I. Weisberg1994                                            |  | Director                                                   |  | 630,000                                      | (3)  | 2.8                 | %
|Edward Chapman                                                     |  | Senior Vice President of Finance                           |  | 400,000                                      | (4)  | 1.8                 | %
|Peter J. Blampied1988                                             |  | Director                                                   |  | 150,300                                      | (5)  | 0.7                 | %
|Jessie Knight, Jr.2002                                            |  | Director                                                   |  | 150,000                                      | (6)  | 0.7                 | %
|August Schumacher2002                                             |  | Director                                                   |  | 100,000                                      | (7)  | 0.5                 | %
|Thomas M. Matthews2001                                            |  | Director                                                   |  | 50,000                                       | (8)  | 0.2                 | %
|R. Jeffrey Macartney                                               |  | Chief Financial Officer                                    |  | 65,000                                       | (9)  | 0.3                 | %
|                                                                   |  |                                                            |  |                                              |      |                     |  
|All Directors and Officers as a Group                              |  | (9 Individuals)                                            |  | 8,910,387                                    | (10) | 39.1                | %

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Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

During 1993 and 1995, Messrs. Cresci and Livingston exercised options to purchase shares of the Company's Common Stock. As payment for the exercise price
of these stock options, EPC accepted promissory notes payable upon our demand from Messrs. Cresci and Livingston aggregating $332,875 and $428,281, respectively. In 2000, EPC asked that a
portion of these notes be repaid using the proceeds from bonuses due to concerns about ongoing cash requirements. In April 2001, the Company received $1,500,000 pursuant to a settlement of the
Sunnyside litigation and Messrs. Cresci and Livingston were allowed to each borrow $100,000. As of December 31, 2002, Messrs. Cresci and Livingston had aggregate balances due to
EPC of $186,875 and $410,498, respectively under these notes and loans. Interest on these notes and loans, which is payable monthly at the Applicable Federal Rate, amounted to $14,919 in the aggregate
during 2002 and has been fully collected from Messrs. Cresci and Livingston.

In
September 1997, Mr. Weisberg exercised options to purchase 80,000 shares of the Company's Common Stock. As payment for the exercise price of these stock options, we
accepted a promissory note which is payable upon our demand from Mr. Weisberg in the amount of $48,575. Interest on this note, which is payable quarterly at the Applicable Federal Rate,
amounted to $1,213 in 2002 and has been fully collected from Mr. Weisberg.

On
September 14, 2001, we borrowed $750,000 from Alco Financial Services, LLC ("Alco"). Robert Weisberg, a Director of Environmental Power, Corp. is the President, Director and a
member of Alco. The loan is evidenced by a promissory note that bears interest at the prime rate plus 3.5%. We also pay an administrative fee of 0.6% per month and paid a commitment fee of $7,500 to
secure the loan. The loan is secured by all of our assets (other than the stock of its subsidiary, Buzzard Power Corporation). In connection with the loan, we granted Alco five year warrants to
purchase 50,000
shares of common stock at $0.60 per share. During 2002, we recognized interest expense and administrative fees of $62,563 and $61,500, respectively for this loan.

On
May 2, 2002, Benjamin Brant, a director of EPC and a former officer of our Microgy subsidiary, granted to EPC a transferable one-year option to purchase 1,802,486
shares of his Common Stock at $0.35 per share. EPC was required to exercise the option to purchase at least 342,857 of such shares by specified times. As of March 5, 2003 EPC had exercised the
option to purchase 100% of the required 342,857 shares. To the extent any portion of the option expires unexercised, Mr. Brant would grant EPC a transferable right of first refusal for the
underlying shares for a 12 month period beginning upon expiration of the option. Mr. Brant also agreed to deliver an additional 197,514 shares of his Common Stock to EPC in satisfaction
of an obligation in the amount of $69,129 to Microgy by a company of which Mr. Brant is a principal. Mr. Brant had previously guaranteed this obligation to Microgy under a
June 2001 agreement. Mr. Brant also agreed to a 24 month standstill whereby an additional 753,066 shares of his Common Stock would not be sold into the public markets.

On
May 22, 2002, EPC granted Madison Power a ten-year option to purchase 100,000 shares of common stock at $.58 per share. Edward Chapman, a Senior Vice President of
EPC, is an owner of Madison Power. The options were issued in connection with Mr. Chapman's consulting services prior to joining EPC as an officer.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15 (d) 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.

|Dated:         |  | ENVIRONMENTAL POWER CORPORATION
|-------------- |  | -------------------------------
|April 29, 2003 |  | By                             

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SECTION 302 CERTIFICATIONS

I,
R. Jeffrey Macartney, certify that:



| |  | /s/R. JEFFREY MACARTNEYR. Jeffrey Macartney
Chief Financial Officer
April 29, 2003
| |  | ----------------------------------------------------------------------------------

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SECTION 302 CERTIFICATIONS

I,
Joseph E. Cresci, certify that:



| |  | /s/JOSEPH E. CRESCIJoseph E. Cresci
Chief Executive Officer
April 29, 2003
| |  | --------------------------------------------------------------------------

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