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 1934For the quarterly period ended   March 31, 2009Or[   ]Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934For the transition period from  to  Commission File Number:001-14768  NSTAR(Exact name of registrant as specified in its charter)  Massachusetts04-3466300(State or other jurisdiction of
incorporation or organization)(I.R.S.  Employer Identification Number)800 Boylston Street, Boston, Massachusetts02199(Address of principal executive offices)(Zip Code)  (617) 424-2000(Registrant's telephone number, including area code)  Indicate by check mark whether the registrant (1) has filed all reports required to be filed by 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. [X]Yes[  ]No  Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). [   ]Yes[  ]No  Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company (as defined in Rule 12b-2 of the Exchange Act).  Large accelerated filer[ X ]Accelerated filer[   ]Non-accelerated filer[    ]Smaller reporting company[   ](Do not check if a smaller reporting company)  Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). [   ]Yes[ X ]No  The number of shares outstanding of the registrant's class of common stock was 106,808,376 Common Shares, par value $1 per share, as of April 30, 2009.    NSTAR Form 10-Q Quarterly Period Ended March 31, 2009  Table of Contents Page No.Glossary of Terms2Cautionary Statement Regarding Forward-Looking Information3Part I.  Financial Information:Item 1.Financial Statements (unaudited):Consolidated Statements of Income4Consolidated Statements of Retained Earnings5Consolidated Statements of Comprehensive Income5Consolidated Balance Sheets6 - 7Consolidated Statements of Cash Flows8Notes to Consolidated Financial Statements9  18Item 2.Managements Discussion and Analysis of Financial Condition and Results of Operations19 - 31Item 3.Quantitative and Qualitative Disclosure About Market Risk31Item 4.Controls and Procedures32Part II.  Other Information:Item 1.Legal Proceedings32Item 1A.Risk Factors32Item 2.Unregistered Sales of Equity Securities and Use of Proceeds32Item 6.Exhibits33Signature34Exhibit 31.1Section 302 CEO CertificationExhibit 31.2Section 302 CFO CertificationExhibit 32.1Section 906 CEO CertificationExhibit 32.2Section 906 CFO CertificationImportant Shareholder InformationNSTAR files its Forms 10-K, 10-Q, and 8-K reports, proxy statements, and other information with the SEC.  You may access materials free of charge NSTAR has filed with the SEC on NSTARs website at: www.nstar.com:  Select "Investor Relations" and "Financial Information" or on the SECs website at www.sec.gov.  Copies of NSTARs SEC filings may also be obtained free of charge by writing to NSTARs Investor Relations Department at the address on the cover of this Form 10-Q or by calling 781-441-8338.

In addition, NSTARs Board of Trustees has several committees, including an Audit, Finance and Risk Management Committee, an Executive Personnel Committee and a Board Governance and Nominating Committee.  The Board of Trustees also has a standing Executive Committee.  The Board of Trustees has adopted the NSTAR Board of Trustees Guidelines on Significant Corporate Governance Issues, a Code of Ethics for the Principal Executive Officer, General Counsel, and Senior Financial Officers pursuant to Section 406 of the Sarbanes-Oxley Act of 2002, and a Code of Ethics and Business Conduct for Trustees, Officers and Employees ("Code of Conduct").  NSTAR intends to disclose any amendment to, and any waiver from, a provision of the Code of Ethics that applies to the Chief Executive Office or Chief Financial Officer or any other executive officer and that relates to any element of the Code of Ethics definition enumerated in Item 406(b) of Regulation S-K, on Form 8-K, within four business days following the date of such amendment or waiver.  NSTARs Corporate Governance documents, including charters, guidelines and codes, and any amendments to such charters, guidelines and codes that are applicable to NSTARs executive officers, senior financial officers or trustees can be accessed free of charge on NSTARs website at: www.nstar.com:  Select "Investor Relations" and Company Information."

The certifications of NSTAR's Chief Executive Officer and Chief Financial Officer pursuant to Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 are attached to this Quarterly Report on Form 10-Q as Exhibits 31.1, 31.2, 32.1, and 32.2.   1     Glossary of Terms  The following is a glossary of abbreviated names or acronyms frequently used throughout this report.  NSTAR CompaniesNSTARNSTAR (Parent company), Company or NSTAR and its    subsidiaries (as the context requires)NSTAR ElectricNSTAR Electric CompanyNSTAR GasNSTAR Gas CompanyNSTAR Electric & GasNSTAR Electric & Gas CorporationMATEPMedical Area Total Energy Plant, Inc.AESAdvanced Energy Systems, Inc.  (Parent company of MATEP)NSTAR ComNSTAR Communications, Inc.HopkintonHopkinton LNG Corp.Unregulated operationsRepresents non rate-regulated operations of AES, NSTAR
Com, and HopkintonRegulatory and Other AuthoritiesAGAttorney General of the Commonwealth of MassachusettsDOEU. S. Department of EnergyDPUMassachusetts Department of Public UtilitiesFASBFinancial Accounting Standards BoardFERCFederal Energy Regulatory CommissionIRSU. S. Internal Revenue ServiceISO-NEISO (Independent System Operator) - New England Inc.NYMEXNew York Mercantile ExchangePCAOBPublic Company Accounting Oversight Board (United States)SECU. S. Securities and Exchange CommissionOtherAFUDCAllowance for Funds Used During ConstructionBBtuBillions of British thermal unitsCGACCost of Gas Adjustment ClauseCPSLCapital Projects Scheduling ListDSMDemand-Side ManagementEPSEarnings Per Common ShareGAAPGenerally Accepted Accounting Principles in the
United States of AmericaLDACLocal Distribution Adjustment ClauseMD&AManagement's Discussion and Analysis of Financial Condition
and Results of OperationsMGPManufactured Gas PlantMWhMegawatthour (equal to one million watthours)PAMPension Adjustment MechanismPBOPPostretirement Benefits Other than PensionsRMRReliability Must RunROEReturn on EquityRTORegional Transmission OrganizationSFASStatement of Financial Accounting StandardsSIPSimplified Incentive PlanSQIService Quality IndicatorsSSCMSimplified Service Cost Method   2    Cautionary Statement Regarding Forward-Looking Information  This Quarterly Report on Form 10-Q contains statements that are considered forward-looking statements within the meaning of the Securities Act of 1933 and the Securities Exchange Act of 1934.  These forward-looking statements may also be contained in other filings with the SEC, in press releases, and oral statements.  You can identify these statements by the fact that they do not relate strictly to historical or current facts.  They use words such as anticipate, estimate, expect, project, intend, plan, believe, and other words and terms of similar meaning in connection with any discussion of future operating or financial performance.  These statements are based on the current expectations, estimates or projections of management and are not guarantees of future performance.  Some or all of these forward-looking statements may not turn out to be what NSTAR expected.  Actual results could differ materially from these statements.  Therefore, no assurance can be given that the outcomes stated in such forward-looking statements and estimates will be achieved.  Examples of some important factors that could cause our actual results or outcomes to differ materially from those discussed in the forward-looking statements include, but are not limited to, the following:  ·adverse financial market conditions including changes in interest rates and the availability and cost of capital·future economic conditions in global markets·changes to prevailing local, state, and federal governmental policies and regulatory actions (including those of the DPU and the FERC) with respect to allowed rates of return, rate structure, continued recovery of regulatory assets and energy costs, financings, municipalization, acquisition and disposition of assets, operation and construction of facilities, changes in tax laws and policies, and changes in and compliance with environmental and safety laws and policies·new governmental regulations or changes to existing regulations that impose additional operating requirements or liabilities·changes in available information and circumstances regarding legal issues and the resulting impact on our estimated litigation costs·weather conditions that directly influence the demand for electricity and natural gas·impact of continued cost control processes on operating results·ability to maintain current credit ratings·impact of uninsured losses·impact of adverse union contract negotiations·damage from major storms·impact of conservation measures and self-generation by our customers·changes in financial accounting and reporting standards·changes in hazardous waste site conditions and the cleanup technology·prices and availability of operating supplies·impact of terrorist acts and cyber-attacks, and·impact of service quality performance measures  Any forward-looking statement speaks only as of the date of this filing and NSTAR undertakes no obligation to publicly update forward-looking statements, whether as a result of new information, future events, or otherwise.  You are advised, however, to consult all further disclosures NSTAR makes in its filings to the SEC.  Other factors in addition to those listed here could also adversely affect NSTAR.  This Quarterly Report also describes material contingencies and critical accounting policies and estimates in the accompanying Part I, Item 2, "Managements Discussion and Analysis of Financial Condition and Results of Operations (MD&A) and in the accompanying Notes to Consolidated Financial Statements and NSTAR encourages a review of these items.  3    Part I.  Financial Information  Item 1.  Financial Statements  NSTAR Consolidated Statements of Income (Unaudited) (in thousands, except per share amounts)  Three Months EndedMarch 31,20092008Operating revenues$947,789$895,581Operating expenses:Purchased power and transmission397,886346,848Cost of gas sold157,078162,566Operations and maintenance110,018112,328Depreciation and amortization101,28499,214DSM and renewable energy programs19,17018,300Property and other taxes29,89127,014Income taxes35,90833,886Total operating expenses851,235800,156Operating income96,55495,425Other income (deductions):Other income, net9634,090Other deductions, net(356)(334)Total other income, net6073,756Interest charges (income):Long-term debt33,94133,387Transition property securitization5,8437,981Short-term debt and other, net(4,012)(1,473)AFUDC(137)(440)Total interest charges35,63539,455Net income61,52659,726Less: Preferred stock dividends of subsidiary to the     noncontrolling interest490490Net income attributable to common shareholders$61,036$59,236Weighted average common shares outstanding:Basic106,808106,808Diluted107,016107,008Earnings per common share:Basic and Diluted$0.57$0.55Dividends declared per common share$0.375$0.35  The accompanying notes are an integral part of the consolidated financial statements.  4       NSTAR Consolidated Statements of Retained Earnings (Unaudited) (in thousands)  Three Months EndedMarch 31,20092008Balance at the beginning of the period$876,271$790,926Add:Net income61,52659,726Subtotal937,797850,652Deduct:Dividends declared:Common shares40,05337,383Preferred stock dividends of subsidiary to noncontrolling interest49049040,54337,873Balance at the end of the period$897,254$812,779   The accompanying notes are an integral part of the consolidated financial statements.    NSTAR Consolidated Statements of Comprehensive Income (Unaudited) (in thousands)  Three Months EndedMarch 31,20092008Net income$61,526$59,726Other comprehensive income, net:Pension and postretirement benefits costs381478Deferred income tax expense(156)(186)Total other comprehensive income, net225292Comprehensive income61,75160,018Comprehensive income attributable to the noncontrolling interest        preferred stock dividends of subsidiary490490Comprehensive income attributable to NSTAR$61,261$59,528   The accompanying notes are an integral part of the consolidated financial statements.  5    NSTAR Consolidated Balance Sheets (Unaudited) (in thousands)  March 31,December 31,20092008AssetsUtility plant:Electric and gas plant in service, at original cost$5,738,815$5,694,537Less: accumulated depreciation1,437,3441,418,4294,301,4714,276,108Construction work in progress128,185122,294Net utility plant4,429,6564,398,402Other property and investments:Nonutility property, net137,907139,764Electric equity investments6,4596,701Other investments72,38872,475216,754218,940Current assets:Cash and cash equivalents34,48521,984Restricted cash10,8579,581Accounts receivable, net of allowance of $35,612 and     $32,859, respectively384,469332,465Accrued unbilled revenues48,15461,892Regulatory assets355,032439,914Inventory, at average cost57,36193,684Refundable income taxes129,120129,120Other33,59932,7211,053,0771,121,361Deferred debits:Regulatory assets2,408,7082,466,018Other66,22264,7682,474,9302,530,786Total assets$8,174,417$8,269,489  The accompanying notes are an integral part of the consolidated financial statements.   6     NSTAR Consolidated Balance Sheets (Unaudited) (in thousands)  March 31,December 31,20092008Capitalization and LiabilitiesCommon equity:Common shares, par value $1 per share, 200,000,000shares authorized, 106,808,376 issued and outstanding$106,808$106,808Premium on common shares819,746818,601Retained earnings897,254876,271Accumulated other comprehensive loss(13,302)(13,525)Total common equity1,810,5061,788,155Noncontrolling interest  preferred stock of subsidiary43,00043,000Long-term debt:Long-term debt1,616,0472,012,467Transition property securitization252,928331,2091,868,9752,343,676Current liabilities:Long-term debt505,1155,444Transition property securitization134,84992,580Notes payable442,100582,883Income taxes85,98387,880Accounts payable269,935291,012Power contract obligations139,434155,815Accrued interest35,24331,073Dividends payable40,38040,380Accrued expenses12,51119,251Other83,95688,6641,749,5061,394,982Deferred credits:Accumulated deferred income taxes1,154,1041,130,437Power contract obligations314,127345,993Pension and other postretirement liability760,229749,774Regulatory liability - cost of removal267,773264,959Other206,197208,5132,702,4302,699,676Commitments and contingenciesTotal capitalization and liabilities$8,174,417$8,269,489  The accompanying notes are an integral part of the consolidated financial statements.  7    NSTAR Consolidated Statements of Cash Flows (Unaudited) (in thousands)  Three Months EndedMarch 31,20092008Operating activities:Net income$61,526$59,726Adjustments to reconcile net income to net cashprovided by operating activities:Depreciation and amortization102,836100,939Deferred income taxes(3,071)2,648Noncash stock-based compensation2,6542,686Net changes in:Accounts receivable and accrued unbilled revenues(38,266)(26,851)Inventory, at average cost36,32357,723Other current assets(636)(6,449)Accounts payable14,9042,746Accrued expenses(6,740)(5,055)Other current liabilities15,69320,120Regulatory assets76,18145,278Long-term power contract obligations(48,247)(52,523)Net change from other miscellaneous operating activities29,592854Net cash provided by operating activities242,749201,842Investing activities:Plant expenditures (including AFUDC)(108,185)(107,998)Increase in restricted cash(1,276)(11,961)Proceeds from sale of property1,995-Net change in other investment activities(494)212Net cash used in investing activities(107,960)(119,747)Financing activities:Long-term debt redemptions(1,638)(1,519)Transition property securitization redemptions(36,012)(39,669)Issuance of long-term debt100,000-Premium on issuance of long-term debt4,553-Debt issue costs(693)-Net change in notes payable(140,783)100Change in disbursement accounts(6,050)(9,162)Common share dividends paid(40,053)(37,383)Preferred stock dividends of subsidiary to noncontrolling interest(490)(490)Cash received for exercise of equity compensation1,046163Cash used to settle equity compensation(2,360)(247)Windfall tax effect of settlement of equity compensation192-Net cash used in financing activities(122,288)(88,207)Net increase (decrease) in cash and cash equivalents12,501(6,112)Cash and cash equivalents at the beginning of the year21,98434,121Cash and cash equivalents at the end of the period$34,485$28,009  Supplemental disclosures of cash flow information:Cash paid during the period for:Interest, net of amounts capitalized$35,517$41,441Income taxes$14,401$14,138Non-cash investing activity:Plant expenditures included in ending accounts payable$22,428$13,508  The accompanying notes are an integral part of the consolidated financial statements.  8      Notes to Consolidated Financial Statements (Unaudited)  The accompanying notes should be read in conjunction with Notes to Consolidated Financial Statements included in NSTAR's 2008 Annual Report on Form 10-K.  Note A.  Business Organization and Summary of Significant Accounting Policies  1.  About NSTAR  NSTAR (or the Company) is a holding company engaged through its subsidiaries in the energy delivery business.  The Company serves approximately 1.4 million customers in Massachusetts, including approximately 1.1 million electric distribution customers in 81 communities and approximately 300,000 natural gas distribution customers in 51 communities.  NSTAR's retail electric and natural gas transmission and distribution utility subsidiaries are NSTAR Electric and NSTAR Gas, respectively.  Reference in this report to "NSTAR" shall mean the registrant NSTAR or NSTAR and its subsidiaries as the context requires.  NSTAR also has ownership and is engaged in unregulated operations.   2.  Basis of Consolidation and Accounting  The accompanying consolidated financial information presented as of March 31, 2009 and for the three-month periods ended March 31, 2009 and 2008 has been prepared from NSTAR's books and records without audit by an independent registered public accounting firm.  However, NSTAR's independent registered public accounting firm has performed a review of these interim financial statements in accordance with standards established by the PCAOB.  The review report is filed as Exhibit 99.1 to this Form 10-Q.  Financial information as of December 31, 2008 was derived from the audited consolidated financial statements of NSTAR, but does not include all disclosures required by GAAP.  In the opinion of NSTAR's management, all adjustments (which are of a normal recurring nature) necessary for a fair presentation of the financial information for the periods indicated, have been included.  Certain immaterial reclassifications have been made to prior period amounts to conform to the current periods presentation.  NSTAR's utility subsidiaries follow accounting policies prescribed by the FERC and the DPU.  In addition, NSTAR and its subsidiaries are subject to the accounting and reporting requirements of the SEC. NSTAR's utility subsidiaries are subject to SFAS No. 71, "Accounting for the Effects of Certain Types of Regulation" (SFAS 71).  The application of SFAS 71 results in differences in the timing of recognition of certain revenues and expenses from those of other businesses and industries.  The distribution and transmission businesses are subject to rate-regulation that is based on cost recovery and meet the criteria for application of SFAS 71.  The preparation of financial statements in conformity with GAAP requires management of NSTAR and its subsidiaries to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Actual results could differ from these estimates.  The results of operations for the three-month periods ended March 31, 2009 and 2008 are not indicative of the results that may be expected for an entire year.  The demand for electricity and natural gas is affected by weather conditions, as well as consumer conservation behavior.  Electric energy sales and revenues are typically higher in the winter and summer months than in the spring and fall months.  Natural gas energy sales and revenues are typically higher in the winter months than during other periods of the year.   9    3.  Pension and Postretirement Benefits Other Than Pensions (PBOP) Plans  NSTARs net periodic Pension Plan and PBOP Plan benefit costs for the first quarter are based on the latest available participant census data.  An annual actuarial valuation will be completed during the second quarter, and cost estimates will be adjusted based on the actual actuarial study results.  NSTARs Pension Plan and PBOP Plan assets, which partially consist of equity investments, have been affected by recent declines in the equity markets.  Periodic pension and postretirement benefit costs for 2009 have increased over 2008 primarily due to the decline in the Plans investment values during 2008.  Fluctuations in the fair value of the Pension Plan and PBOP Plan assets impact the funded status, accounting costs, and cash funding requirements of these Plans.  The earnings impact of increased Pension and PBOP costs is mitigated by NSTARs DPU-approved Pension and PBOP rate adjustment mechanism (PAM).  Pension  NSTAR provides a defined benefit retirement plan, the NSTAR Pension Plan (the Plan), that covers substantially all employees.  During the three months ended March 31, 2009, NSTAR did not contribute to the Plan as the first quarter funding requirement was met in December 2008.  A contribution of $5.7 million was made in April 2009.  NSTAR currently anticipates contributing an additional $19.3 million to the Plan during the remainder of 2009.  However, the actual level of funding may increase depending on the Plans performance during the year.  Components of net periodic pension benefit cost were as follows:  Three Months EndedMarch 31,(in millions)20092008Service cost$5.7$5.5Interest cost16.116.0Expected return on Plan assets(14.3)(21.4)Amortization of prior service cost(0.2)0.1Recognized actuarial loss13.54.0Net periodic pension benefit cost$20.8$4.2  Other Postretirement Benefits  NSTAR also provides health care and other benefits to retired employees who meet certain age and years of service eligibility requirements.  Under certain circumstances, eligible retirees are required to contribute for postretirement benefits.  During the three months ended March 31, 2009, NSTAR contributed $2.7 million to this plan and anticipates contributing approximately $27.3 million over the remainder of 2009 toward these benefits.  Components of net periodic postretirement benefit cost were as follows:  Three Months EndedMarch 31,(in millions)20092008Service cost$1.6$1.6Interest cost9.49.1Expected return on Plan assets(4.4)(7.2)Amortization of prior service cost(0.4)(0.4)Amortization of transition obligation0.20.2Recognized actuarial loss5.12.0Net periodic postretirement benefit cost$11.5$5.3   10    4.  Noncontrolling Interest  Cumulative Non-Mandatory Redeemable Preferred Stock of Subsidiary  NSTAR Electric has two outstanding series of non-mandatory redeemable preferred stock.  Both series are part of a class of NSTAR Electrics Cumulative Preferred Stock.  Upon any liquidation of NSTAR Electric, holders of the Cumulative Preferred Stock are entitled to receive the liquidation preference for their shares before any distribution to the holder of the common stock.  The liquidation preference for each outstanding series of Cumulative Preferred Stock is equal to the par value ($100 per share) plus accrued and unpaid dividends.  Non-mandatory redeemable series:  Par value $100 per share, 2,890,000 shares authorized and 430,000 shares issued and outstanding:  (in thousands, except per share amounts)SeriesCurrent SharesOutstandingRedemption Price/ShareMarch 31, 2009December 31, 20084.25%180,000$103.625$18,000$18,0004.78%250,000$102.8025,00025,000Total non-mandatory redeemable series$43,000$43,000  During the year ended December 31, 2008 and during the three months ended March 31, 2009, there were no changes in the noncontrolling interest of NSTAR Electric.  SFAS No. 160  SFAS No. 160, Noncontrolling Interests in Consolidated Financial Statements (SFAS 160) clarifies that a noncontrolling interest in a subsidiary is an ownership interest in the consolidated entity that should be reported as equity in the consolidated financial statements.  SFAS 160 is effective and was applied prospectively as of January 1, 2009, except for the presentation and disclosure requirements, which were applied retrospectively for all periods presented.  The adoption of SFAS 160 requires NSTAR to reflect NSTAR Electrics noncontrolling interest preferred stock as noncontrolling interest of a subsidiary in the accompanying Consolidated Balance Sheets outside of permanent equity.  Each of the two preferred stock series contains provisions relating to non-payment of preferred dividends that could potentially result in the preferred shareholders being granted the majority control of the Board of Directors of NSTAR Electric until all preferred dividends are paid.  As a result, the preferred stock has not been classified within permanent equity.  The dividends on NSTAR Electrics preferred stock to the noncontrolling interest are reflected separately after net income and before net income attributable to common shareholders on the accompanying Consolidated Statements of Income.  The dividends are reported as comprehensive income attributable to the noncontrolling interest on the accompanying Consolidated Statements of Comprehensive Income.  5.  Short-Term Debt Interest Charges (Income), net  Major components of interest charges (income) related to short-term debt and other, net were as follows:  Three Months EndedMarch 31,(in thousands)20092008Short-term debt$690$3,328Regulatory assets(5,048)(4,132)Income tax deficiencies(798)(1,536)Other1,144867Total short-term debt and other, net$(4,012)$(1,473)   11    Note B.  Cost of Removal  For NSTAR's regulated utility businesses, the ultimate cost to remove utility plant from service (cost of removal) is recognized as a component of depreciation expense in accordance with approved regulatory treatment.  As of March 31, 2009 and December 31, 2008, the estimated amount of the cost of removal included in regulatory liabilities was approximately $268 million and $265 million, respectively, and are reflected as Deferred credits: Regulatory liability  cost of removal on the accompanying Consolidated Balance Sheets.  These estimates are based on the cost of removalcomponent in current depreciation rates.  Note C.  Derivative Instruments  Energy Contracts  NSTAR accounts for its energy contracts in accordance with SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities(SFAS 133) and SFAS No. 149, "Amendment of Statement No. 133 on Derivative Instruments and Hedging Activities" (SFAS 149).  NSTAR has determined that its electricity supply contracts qualify for, and NSTAR has elected, the normal purchases and sales exception.  As a result, these agreements are not reflected on the accompanying Consolidated Balance Sheets.  NSTAR Gas has only one significant gas supply contract.  This contract is an all-requirements portfolio asset management contract that expires in October 2009.  This contract contains market based pricing terms and, therefore, no financial statement adjustments would be required.  Gas supply costs incurred related to this contract were $93 million for each of the three month periods ended March 31, 2009 and 2008, respectively, and have been recorded to Cost of gas sold on the accompanying Consolidated Statements of Income.  Refer to the accompanying Part I, Item 3,Quantitative and Qualitative Disclosures About Market Risk, for a further discussion.  Gas Hedging Agreements  In accordance with a DPU order, NSTAR Gas purchases financial contracts based upon NYMEX natural gas futures in order to reduce cash flow variability associated with the purchase price for approximately one-third of its natural gas purchases. This practice attempts to minimize the impact of fluctuations in prices to NSTARs firm gas customers. These financial contracts do not procure gas supply. These contracts qualify as derivative financial instruments under SFAS 133,as amended by SFAS 149.  Accordingly, the fair value of these instruments is recognized on the accompanying Consolidated Balance Sheets as an asset or liability representing amounts due from or payable to the counter parties of NSTAR Gas, as if such contracts were settled as of the balance sheet date.  All actual costs incurred or benefits realized are included in the CGAC of NSTAR Gas.  As a result, NSTAR Gas records an offsetting regulatory asset or liability for the market price changes, in lieu of recording an adjustment to Other Comprehensive Income.  Currently, these derivative contracts extend through April 2010.  The presentation of the asset or liability positions and settlements of these hedge agreements during the period in the accompanying Consolidated Financial Statements are as follows:  SFAS No. 161  NSTAR adopted the provisions of SFAS No. 161, Disclosures about Derivative Instruments and Hedging Activities, (SFAS 161) effective January 1, 2009.  The following disclosures relate to the implementation of SFAS 161, and summarize the fair value of NSTAR Gas hedging agreements and related settlements:  (in thousands)March 31,
2009December 31,
2008Gas Hedging AgreementsBalance Sheet Account:Current liabilities  power contract obligations$14,147$32,275Deferred credits  power contract obligations590600Total potential liability for derivative instruments$14,737$32,875  12       Amount of Gain or (Loss) Recognized
Three Months Ended March 31,Settlement of gas hedging agreements20092008Consolidated Statement of Income Account:Increase to Cost of gas sold$(31,416)$(4,574)Recognition of revenues reflecting recovery of costs       from customers31,4164,574Net earnings impact$-$-  As of March 31, 2009, these gas hedging agreements, representing five individual contracts, hedged approximately 6,000 BBtu.  The settlement of these contracts may have a short-term cash flow impact but over the long-term any such effects are negated by a regulatory recovery mechanism for those costs.  Potential counterparty credit risk is minimized by collateral requirements as specified in credit support agreements to the contracts that are based on the credit rating of the counterparty and the fair value exposure under the contracts term.  In the event of a downgrade in the credit rating of either party, these agreements may require that party to immediately collateralize, by either cash payment, letter of credit, or other qualifying security instrument, any exposure that exists for obligations in excess of specified threshold amounts.  NSTAR Gas is also subject to this credit risk-related contingent feature.  Based on market conditions at the time of a downgrade, NSTAR Gas could be required to post collateral in an amount that could be less or more than the amounts specified above.  As of March 31, 2009, NSTAR Gas has an A+ Standard & Poors Credit rating.  Collateral obligations are required in the event of a downgrade below an A rating by Standard & Poors.  Based on NSTAR Gas liability position with its gas hedge contract counterparties as of March 31, 2009, should NSTAR Gas credit rating be downgraded the following collateral obligations would result:  Level BelowCurrentIncrementalCumulativeCredit Ratings Downgraded to:RatingObligationsObligations(in thousands)A-/A31$           -$         -BBB+/Baa12$           -$         -BBB/Baa23$   3,363$   3,363BBB-/Baa3, or below investment grade4$ 11,374$ 14,737  In addition, these agreements contain cross-default provisions that would allow NSTAR Gas and its counterparties to terminate and liquidate a gas hedge contract if either party is in default on other swap agreements with that same counterparty, or another unrelated agreement with that same counterparty in excess of stipulated threshold amounts.  Note D.  Income Taxes  Income taxes are accounted for in accordance with SFAS No. 109, Accounting for Income Taxes (SFAS 109).  SFAS 109 requires the recognition of deferred tax assets and liabilities for the future tax effects of temporary differences between the carrying amounts and the tax basis of assets and liabilities.  In accordance with SFAS 71 and SFAS 109, net regulatory assets of $28.7 million and $29.2 million and corresponding net increases in accumulated deferred income taxes were recorded as of March 31, 2009 and December 31, 2008, respectively.  The regulatory assets represent the additional future revenues to be collected from customers for deferred income taxes.   13    The following table reconciles the statutory federal income tax rate to the annual estimated effective income tax rate for 2009 and the actual effective income tax rate for the year ended December 31, 2008:  20092008Statutory tax rate35%35%State income tax, net of federal income tax benefit45Other(2)(2)Effective tax rate37%38%  Uncertain Tax Positions  There were no changes to estimates of unrecognized tax benefits during the three-month period ended March 31, 2009.  Note E.  Earnings Per Common Share  Basic EPS is calculated by dividing net income, which includes a deduction for preferred dividends of a subsidiary, by the weighted average common shares outstanding during the respective period. Diluted EPS is similar to the computation of basic EPS except that the weighted average common shares are increased to include the impact of potential (nonvested) shares and stock options granted, of its stock-based compensation, in accordance with NSTARs Long Term Incentive Plan.  The following table summarizes the reconciling amounts between basic and diluted EPS:  Three Months EndedMarch 31,(in thousands, except per share amounts)20092008Net income attributable to common shareholders$61,036$59,236Basic and Diluted EPS$0.57$0.55Weighted average common shares outstanding for basic EPS106,808106,808Effect of diluted shares:Weighted average dilutive potential common shares208200Weighted average common shares outstanding for diluted EPS107,016107,008  Note F.  Segment and Related Information  For the purpose of providing segment information, NSTAR's principal operating segments are its traditional core businesses of electric and natural gas retail transmission and distribution utilities that provide energy delivery services in 107 cities and towns in Massachusetts.  The unregulated operating segment engages in business activities that include district energy operations, telecommunications, and liquefied natural gas service.  Amounts shown on the following table for the three-month periods ended March 31, 2009 and 2008 include the allocation of NSTAR's (Holding Company) results of operations (primarily interest costs) and assets to each business segment, net of inter-company transactions that primarily consist of interest charges and investment assets, respectively.  The allocation of Holding Company charges is based on an indirect allocation of the Holding Company's investment relating to these various business segments.   14    Financial data for the operating segments were as follows:  Utility OperationsUnregulatedConsolidated(in thousands)ElectricGasOperationsTotalThree months ended March 31,2009Operating revenues$672,480$232,141$43,168$947,789Segment net income$39,603$16,421$5,502$61,5262008Operating revenues$619,191$234,657$41,733$895,581Segment net income$35,970$18,703$5,053$59,726Total assetsMarch 31, 2009$7,176,709$784,882$212,826$8,174,417December 31, 2008$7,214,780$855,555$199,154$8,269,489  Note G.  Fair Value Measurement  SFAS No. 157, as amended, "Fair Value Measurements(SFAS 157), defines fair value, establishes a framework for measuring fair value in accordance with GAAP, and expands disclosures about fair value measurements. While the standard does not expand the use of fair value, it has applicability to several current accounting standards that require or permit measurement of assets and liabilities at fair value.  The Company prospectively adopted SFAS 157 on January 1, 2008, with no impact to its results of operations, financial position, or cash flows.  SFAS 157 establishes a fair value hierarchy that prioritizes the inputs used to determine fair value and requires the Company to classify assets and liabilities carried at fair value based on the observability of these inputs.  The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.  The three levels of the fair value hierarchy defined by SFAS 157 are:  Level 1  Unadjusted quoted prices available in active markets for identical assets or liabilities as of the reporting date.  Financial assets utilizing Level 1 inputs include active exchange-traded equity securities.  Level 2  Quoted prices available in active markets for similar assets or liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, inputs other than quoted prices that are directly observable, and inputs derived principally from market data.  Level 3  Unobservable inputs from objective sources.  These inputs may be based on entity-specific inputs.  Level 3 inputs include all inputs that do not meet the requirements of Level 1 or Level 2.  The following represents the fair value hierarchy of NSTARs financial assets and liabilities that were recognized at fair value on a recurring basis as of March 31, 2009 and December 31, 2008.  As required by SFAS 157, financial assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurement.  Recurring Fair Value Measures:March 31, 2009(in millions)Level 1Level 2TotalAssets:Government Money Market Securities(a)$19$-$19Deferred Compensation Assets (b)26-26Investments (b)13-13Total$58$-$58  15     Liabilities:Gas Hedges(c)$-$15$15Total$-$15$15  December 31, 2008Level 1Level 2TotalAssets:Government Money Market Securities(a)$10$-$10Deferred Compensation Assets (b)27-27Investments (b)13-13Total$50$-$50Liabilities:Gas Hedges(c)$-$32$32Total$-$32$32  (a)  -  Included in Cash and cash equivalents on the accompanying Consolidated Balance Sheets (b)  -  Included in Other investments on the accompanying Consolidated Balance Sheets (c)  -  Included in Current liabilities: Other and Deferred credits: Power contract obligations on  the          accompanying Consolidated Balance Sheets  Note H.  Long-Term Debt Issuance  On February 13, 2009, NSTAR Electric sold, at a premium, $100 million of fixed rate (5.625%) Debentures due November 15, 2017 (effective rate of 4.976%).  The Debentures form a single series and are fungible with NSTAR Electrics 5.625% $300 million Debentures due November 15, 2017 issued on November 19, 2007.  This issuance completes an NSTAR Electric DPU approved financing plan to issue up to $400 million in debt securities.  Note I.  Commitments and Contingencies  1.  Environmental Matters  NSTAR subsidiaries face possible liabilities as a result of involvement in several multi-party disposal sites, state-regulated sites or third party claims associated with contamination remediation.  NSTAR generally expects to have only a small percentage of the total potential liability for the majority of these sites.  As of March 31, 2009 and December 31, 2008, NSTAR had a liability of approximately $0.7 million and $0.8 million, respectively, for these environmental sites.  This estimated liability recorded is based on an evaluation of all currently available facts with respect to these sites.  NSTAR Gas is participating in the assessment or remediation of certain former MGP sites and alleged MGP waste disposal locations to determine if and to what extent such sites are contaminated and whether NSTAR Gas may be responsible to undertake remedial action.  The DPU permits recovery of costs associated with MGP sites over a 7-year period, without carrying costs.  As of March 31, 2009 and December 31, 2008, NSTAR had a liability of approximately $13.3 million as an estimate for site cleanup costs for several MGP sites for which NSTAR Gas has been identified as a potentially responsible party.  A corresponding regulatory asset has been recorded that reflects the future rate recovery for these costs.  Estimates related to environmental remediation costs are reviewed and adjusted as further investigation and assignment of responsibility occurs and as additional sites are identified or NSTAR's responsibilities for such sites evolve or are resolved.  NSTAR's ultimate liability for future environmental remediation costs may vary from these estimates.  Based on NSTAR's current assessment of its environmental responsibilities, existing legal requirements and regulatory policies, NSTAR does not believe that these environmental remediation costs will have a material adverse effect on NSTAR's consolidated results of operations, financial position, or cash flows.  16     2.  Regulatory and Legal Proceedings  Wholesale Power Cost Savings Initiatives  The Rate Settlement Agreement includes incentives to encourage NSTAR Electric to continue its efforts to advocate on behalf of customers at the FERC to mitigate wholesale electricity cost inefficiencies that would be borne by regional customers.  If NSTAR Electric's efforts to reduce customers costs are successful, it is allowed to retain a portion of those savings as an incentive, as well as recover related litigation costs.  Under the terms of the Rate Settlement Agreement, NSTAR Electric was to share in 25% of the savings applicable to its customers.  The recovery of NSTAR Electric's share of benefits is to be collected over three years. As a result of its role in two RMR cases, NSTAR Electric had sought to collect $9.8 million annually for three years and began recognizing and collecting some of these incentive revenues from its customers effective January 1, 2007, subject to final DPU approval.  Public hearings were held by the DPU in early 2007 to investigate the basis and support for the incentive payments.  After these hearings, NSTAR Electric began discussions with the AG and a revised Settlement Agreement was executed on July 23, 2007.  This revised Settlement Agreement allowed NSTAR Electric to collect $6.3 million of the savings annually for three years effective January 1, 2007 and it stipulated that NSTAR Electric would share 12.5% of the savings applicable to its customers in its future efforts related to new wholesale energy cost savings cases.  On February 29, 2008, the DPU issued an order that did not approve the revised Settlement Agreement.  The DPU re-established a procedural schedule and final briefs were filed in early May 2008.  Through March 31, 2009, $14.2 million has been collected from customers for the Wholesale Power Cost Saving Initiatives.  NSTAR is unable to predict the timing or ultimate outcome of this proceeding.  In the event an adverse decision is issued, it would not have a material impact on the Company's results of operations.  DPU Safety and Reliability Programs (CPSL)  As part of the Rate Settlement Agreement, NSTAR Electric is allowed to recover incremental spending for the double pole inspection, replacement/restoration and transfer program and the underground electric safety program, which includes stray-voltage remediation and manhole inspections, repairs, and upgrades.  Recovery of these Capital Program Scheduling List (CPSL) costs is subject to DPU review and approval.  NSTAR Electric incurred incremental costs of $11.1 million and $13.1 million in 2006 and 2007, respectively.  This includes incremental operations and maintenance and revenue requirements on capital investments.  The final reconciliation of 2006 and 2007 CPSL costs recovery is currently under review by the DPU.  The incremental costs for the year 2008 are currently under review by the Company and are estimated to be approximately $15 million.  NSTAR anticipates filing with the DPU its final 2008 CPSL cost recovery reconciliation in the third quarter of 2009.  NSTAR cannot predict the timing of a DPU order related to these pending filings.  Should an adverse decision be issued that would disallow a significant portion of CPSL cost recovery, it could have a material adverse impact to NSTARs results of operations, financial position, and cash flows.  Basic Service Bad Debt Adder  On July 1, 2005, in response to a generic DPU order that required electric utilities in Massachusetts to recover the energy-related portion of bad debt costs in their Basic Service rates, NSTAR Electric increased its Basic Service rates and reduced its distribution rates for those bad debt costs.  In furtherance of this generic DPU order, NSTAR Electric included a bad debt cost recovery mechanism as a component of the Rate Settlement Agreement.  This recovery mechanism (bad debt adder) allows NSTAR Electric to recover its Basic Service bad debt costs on a fully reconciling basis.  These rates were implemented, effective January 1, 2006, as part of NSTAR Electrics Rate Settlement Agreement.  On February 7, 2007, NSTAR Electric filed its 2006 Basic Service reconciliation with the DPU proposing an adjustment related to the increase of its Basic Service bad debt charge-offs.  This proposed rate  17    adjustment was anticipated to be implemented effective July 1, 2007.  On June 28, 2007, the DPU issued an order approving the implementation of a revised Basic Service rate.  However, the DPU instructed NSTAR Electric to reduce distribution rates by the increase in its Basic Service bad debt charge-offs.  Such action would result in a further reduction to distribution rates from the adjustment NSTAR Electric made when it implemented the Settlement Agreement.  This adjustment to NSTAR Electrics distribution rates would effectively eliminate the fully reconciling nature of the Basic Service bad debt adder.  NSTAR Electric has not implemented the components of the June 28, 2007 DPU order.  Implementation of this order would require NSTAR Electric to write-off a previously recorded regulatory asset related to its Basic Service bad debt costs.  NSTAR Electric filed a Motion for Reconsideration of the DPUs order on July 18, 2007.  On December 14, 2007, the Motion for Reconsideration was granted and the DPU reopened the case to hear additional evidence.  NSTAR Electric filed additional testimony in April 2008, an evidentiary hearing was held, and briefs were filed in mid-2008.  NSTAR Electric believes its position is appropriate and that it is probable that it will ultimately prevail.  However, in the event that the DPU does not rule in its favor, NSTAR Electric intends to pursue all legal options.  As of March 31, 2009, the potential impact to earnings of a disallowance of the bad debt adder would be approximately $18 million, pre-tax.  NSTAR cannot predict the timing of this proceeding.  Service Quality Indicators  On March 1, 2007 and on February 29, 2008, NSTAR Electric filed its 2006 and 2007 Service Quality Reports with the DPU that demonstrated the Company achieved sufficient levels of service performance.  The reports indicate that no penalty was assessable for 2006 or 2007.  Due to outstanding DPU decisions relating to changes in the calculation of reliability measures for the duration and frequency of service interruptions these filings have not been approved by the DPU.  On September 25, 2008, the DPU issued an order clarifying the calculation requirements, and on March 2, 2009, NSTAR Electric filed recalculated benchmarks for 2006 and 2007 as well as the Service Quality Report for 2008.  These filings indicate that no penalties were assessable for the periods indicated.  Other  Annually, in the fourth quarter of each year, NSTAR Electric files proposed distribution rate adjustments for effect on January 1, of the following year.  These rate adjustments include a SIP rate factor and several other fully reconciling cost recovery items.  Consistent with previous reconciliation filings, the 2008 filings include a combination of actual and forecasted data for 2008 that NSTAR Electric will update during 2009 with year-end data to allow a final investigation and reconciliation.  There are several case years that remain outstanding at the DPU.  These cases are pending decisions at the DPU and NSTAR cannot predict the timing or the ultimate outcome of these filings.  3.  Legal Matters  In the normal course of its business, NSTAR and its subsidiaries are involved in certain legal matters, including civil litigation.  Management is unable to fully determine a range of reasonably possible court-ordered damages, settlement amounts, and related litigation costs ("legal liabilities") that would be in excess of amounts accrued and amounts covered by insurance.  Based on the information currently available, NSTAR does not believe that it is probable that any such legal liabilities will have a material impact on its consolidated financial position.  However, it is reasonably possible that additional legal liabilities that may result from changes in circumstances could have a material impact on its results of operations, financial condition and cash flows.   18    Item 2.  Management's Discussion and Analysis of Financial Condition and Results of Operations (MD&A)  The accompanying MD&A focuses on factors that had a material effect on the financial condition, results of operations and cash flows of NSTAR during the periods presented and should be read in conjunction with the accompanying consolidated financial statements and related notes and with the MD&A in NSTAR's 2008 Annual Report on Form 10-K.  Business Overview  NSTAR is a holding company engaged through its subsidiaries in the energy delivery business serving approximately 1.4 million customers in Massachusetts, including approximately 1.1 million electric distribution customers in 81 communities and approximately 300,000 natural gas distribution customers in 51 communities.  NSTAR's core business is a traditional "pipes and wires" company with a continuing focus on shareholder value and a continued commitment for safe and reliable energy delivery to customers.  NSTAR also focuses on providing accurate information and other helpful assistance to its customers, thereby providing a superior customer experience.  NSTAR's strategy is to invest in transmission and distribution assets that will align with its core competencies.  Electric utility operations.For the three months ended March 31, 2009,NSTAR derived 71% of its operating revenues from the transmission and distribution of electric energy through NSTAR Electric.  Gas operations.For the three months ended March 31, 2009,NSTAR derived 24% of its operating revenues from the distribution of natural gas through NSTAR Gas.  Unregulated operations.For the three months ended March 31, 2009,NSTAR derived 5% of its operating revenues from non-utility, unregulated operating subsidiaries involved in telecommunications and district energy operations.  Earnings.NSTAR's earnings are impacted by its customers' requirements for energy in the form of unit sales of electricity and natural gas, which directly determine the levels of electric retail distribution and transmission revenues and natural gas firm and transportation revenues recognized.  In accordance with the regulatory rate structures in which NSTAR operates, its recovery of energy and energy-related costs are fully reconciled with the level of energy revenues currently recorded and, therefore, do not have an impact on earnings.  Net income attributable to common shareholders for the quarter ended March 31, 2009 was $61.0 million, or $0.57 diluted earnings per share as compared to $59.2 million, or $0.55 diluted earnings per share for the same period in 2008, as further explained in this discussion.  Critical Accounting Policies and Estimates  For a complete discussion of critical accounting policies, refer to "Critical Accounting Policies and Estimates" in Item 7 of NSTAR's 2008 Form 10-K.  There have been no substantive changes to those policies and estimates.    19    Rate Structure  a.  Rate Settlement Agreement  The DPU approved a seven-year Rate Settlement Agreement ("Rate Settlement Agreement") between NSTAR, the AG, and several other interveners.  Beginning January 1, 2007 and continuing through 2012, the Rate Settlement Agreement establishes for NSTAR Electric, among other things, annual inflation-adjusted distribution rate adjustments that are generally offset by an equal and corresponding reduction in transition rates.  Uncollected transition charges as a result of the reductions in transition rates are deferred and collected through future rates with a carrying charge.  b.  Electric Rates  Retail electric delivery rates are established by the DPU and are comprised of:  ·a distribution charge, which includes a fixed customer charge and a demand and/or energy charge (to collect the costs of building and expanding the infrastructure to deliver power to its destination, as well as ongoing operating costs), a Pension and PBOP Rate Adjustment Mechanism (PAM) related costs adjustment and a reconciling rate adjustment mechanism for recovery of certain DPU-approved safety and reliability program costs,·a basic service chargerepresents the collection of energy costs, including costs related to charge-offs of uncollected energy costs, through DPU-approved rate mechanisms.  Electric distribution companies in Massachusetts are required to obtain and resell power to retail customers through Basic Service for those who choose not to buy energy from a competitive energy supplier.  Basic Service rates are reset every six months (every three months for large commercial and industrial customers).  The price of Basic Service is intended to reflect the average competitive market price for electric power,·a transition charge represents the collection of costs primarily from previously held investments in generating plants and costs related to existing above-market power contracts, and contract costs related to long-term power contracts buy-outs,·a transmission charge represents the collection of costs of moving the electricity over high voltage lines from generating plants to substations located within NSTARs service area including costs allocated to NSTAR Electric by ISO-NE to maintain the wholesale electric market,·an energy conservation chargerepresents a legislatively-mandated charge to collect costs for demand-side management programs and energy efficiency programs, and·a renewable energy charge represents a legislatively-mandated charge to collect the costs to support the development and promotion of renewable energy projects.  c.  Gas Rates  NSTAR Gas generates revenues primarily through the sale and/or transportation of natural gas.  Gas sales and transportation services are divided into two categories: firm, whereby NSTAR Gas must supply gas and/or transportation services to customers on demand; and interruptible, whereby NSTAR Gas may, generally during colder months, temporarily discontinue service to high volume commercial and industrial customers.  Sales and transportation of gas to interruptible customers have no impact on NSTAR Gas operating income because substantially the entire margin for such service is returned to its firm customers as rate reductions.   20    Retail gas delivery and supply rates are established by the DPU and are comprised of:  ·a distribution charge consists of a fixed customer charge and a demand and/or energy charge that collects the costs of building and expanding the gas infrastructure to deliver gas supply to its customers destination.  This also includes collection of ongoing operating costs,·a seasonal cost of gas adjustment clause (CGAC)represents the collection of gas supply costs, pipeline and storage capacity, costs related to charge-offs of uncollected energy costs and working capital related costs.  The CGAC is reset every six months.  In addition, NSTAR Gas is required to file interim changes to its CGAC factor when the actual costs of gas supply vary from projections by more than 5%,·a local distribution adjustment clause (LDAC) primarily represents the collection of demand-side management costs, environmental costs, PAM related costs, and costs associated with the residential assistance adjustment clause.  The LDAC is reset annually and provides for the recovery of certain costs applicable to both sales and transportation customers.  NSTAR Gas purchases financial contracts based on NYMEX natural gas futures in order to reduce cash flow variability associated with the purchase price for approximately one-third of its natural gas purchases.  This practice attempts to minimize the impact of fluctuations in prices to NSTARs firm gas customers.  These financial contracts do not procure gas supply.  All costs incurred or benefits realized when these contracts are settled are included in the CGAC of NSTAR Gas.  d.  Regulatory Matters  Regulatory Proceedings  DPU Safety and Reliability Programs (CPSL)  As part of the Rate Settlement Agreement, NSTAR Electric is allowed to recover incremental spending for the double pole inspection, replacement/restoration and transfer program and the underground electric safety program, which includes stray-voltage remediation and manhole inspections, repairs, and upgrades.  Recovery of these Capital Program Scheduling List (CPSL) costs is subject to DPU review and approval.  NSTAR Electric incurred incremental costs of $11.1 million and $13.1 million in 2006 and 2007, respectively.  This includes incremental operations and maintenance and revenue requirements on capital investments.  The final reconciliation of 2006 and 2007 CPSL costs recovery is currently under review by the DPU.  The incremental costs for the year 2008 are currently under review by the Company and are estimated to be approximately $15 million.  NSTAR anticipates filing with the DPU its final 2008 CPSL cost recovery reconciliation in the third quarter of 2009.  NSTAR cannot predict the timing of a DPU order related to these pending filings.  Should an adverse decision be issued that would disallow a significant portion of CPSL cost recovery, it could have a material adverse impact to NSTARs results of operations, financial position, and cash flows.  Wholesale Power Cost Savings Initiatives  The Rate Settlement Agreement includes incentives to encourage NSTAR Electric to continue its efforts to advocate on behalf of customers at the FERC to mitigate wholesale electricity cost inefficiencies that would be borne by regional customers.  If NSTAR Electric's efforts to reduce customers costs are successful, it is allowed to retain a portion of those savings as an incentive, as well as recover related litigation costs.  Under the terms of the Rate Settlement Agreement, NSTAR Electric was to share in 25% of the savings applicable to its customers.  The recovery of NSTAR Electric's share of benefits is to be collected over three years. As a result of its role in two RMR cases, NSTAR Electric had sought to collect $9.8 million annually for three years and began recognizing and collecting these incentive revenues from its customers effective January 1, 2007, subject to final DPU approval.  Public hearings were held by the DPU in early 2007 to investigate the basis and support for the incentive payments.  After these hearings, NSTAR Electric began discussions with the AG and a revised Settlement Agreement was executed on  21    July 23, 2007.  This revised Settlement Agreement allowed NSTAR Electric to collect $6.3 million of the savings annually for three years effective January 1, 2007 and it stipulated that NSTAR Electric would share 12.5% of the savings applicable to its customers in its future efforts related to new wholesale energy cost savings cases.  On February 29, 2008, the DPU issued an order that did not approve the revised Settlement Agreement.  The DPU re-established a procedural schedule and final briefs were filed in early May 2008.   Through March 31, 2009, $14.2 million has been collected from customers for the Wholesale Power Cost Saving Initiatives.  NSTAR is unable to predict the timing or ultimate outcome of this proceeding.  In the event an adverse decision is issued, it would not have a material impact on the Companys results of operations.  Basic Service Bad Debt Adder  On July 1, 2005, in response to a generic DPU order that required electric utilities in Massachusetts to recover the energy-related portion of bad debt costs in their Basic Service rates, NSTAR Electric increased its Basic Service rates and reduced its distribution rates for those bad debt costs.  In furtherance of this generic DPU order, NSTAR Electric included a bad debt cost recovery mechanism as a component of the Rate Settlement Agreement.  This recovery mechanism (bad debt adder) allows NSTAR Electric to recover its Basic Service bad debt costs on a fully reconciling basis.  These rates were implemented, effective January 1, 2006, as part of NSTAR Electrics Rate Settlement Agreement.  On February 7, 2007, NSTAR Electric filed its 2006 Basic Service reconciliation with the DPU proposing an adjustment related to the increase of its Basic Service bad debt charge-offs.  This proposed rate adjustment was anticipated to be implemented effective July 1, 2007.  On June 28, 2007, the DPU issued an order approving the implementation of a revised Basic Service rate.  However, the DPU required NSTAR Electric to reduce distribution rates by the increase in its Basic Service bad debt charge-offs.  Such action would result in a further reduction to distribution rates from the adjustment NSTAR Electric made when it implemented the Settlement Agreement.  This adjustment to NSTAR Electrics distribution rates would effectively eliminate the fully reconciling nature of the Basic Service bad debt adder.  NSTAR Electric has not implemented the components of the June 28, 2007 DPU order.  Implementation of this order would require NSTAR Electric to write-off a previously recorded regulatory asset related to its Basic Service bad debt costs.  NSTAR Electric filed a Motion for Reconsideration of the DPUs order on July 18, 2007.  On December 14, 2007, the Motion for Reconsideration was granted and the DPU reopened the case to hear additional evidence.  NSTAR Electric filed additional testimony in April 2008, an evidentiary hearing was held, and briefs were filed in mid-2008.  NSTAR Electric believes its position is appropriate and that it is probable that it will ultimately prevail.  However, in the event that the DPU does not rule in its favor, NSTAR Electric intends to pursue all legal options.  As of March 31, 2009, the potential impact to earnings of a disallowance of the bad debt adder would be approximately $18 million, pre-tax.  NSTAR cannot predict the timing of this proceeding.  FERC Transmission ROE  NSTAR earns an 11.14% ROE on local transmission facility investments.  The ROE on NSTARs regional transmission facilities is 11.64%.  Additional incentive adders are decided on a case-by-case basis according to FERCs most recent national transmission incentive rules.  The FERC may grant a variety of financial incentives, including ROE basis point incentive adders for qualified investments made in new regional transmission facilities, that can bring the ROE for NSTAR up to 12.64%, for certain qualified regional investments.  In addition, NSTAR may qualify for other incentives on future transmission projects based upon certain conditions that could bring the ROE to 13.1%.  e. Recent Federal Government Initiatives  The American Recovery and Reinvestment Act of 2009 provides resources for significant increases in spending in several energy-related areas that have relevance to NSTAR, including energy efficiency,  22    smart grid funding, renewable energy financing and transmission projects.  These initiatives are largely directed through federal and state governmental agencies and not-for-profit public agencies.  NSTAR is currently evaluating the impact of this legislation on its business initiatives in these areas.  Any action will require regulatory approval.  Earnings Outlook  NSTAR reaffirms its 2009 earnings guidance and expects to report earnings for the year in the $2.33 per share to $2.43 per share earnings range.  Results of Operations  The following section of MD&A compares the results of operations for each of the three-month periods ended March 31, 2009 and 2008 and should be read in conjunction with the accompanying Consolidated Financial Statements and the accompanying Notes to Consolidated Financial Statements included elsewhere in this report.  Common Share Dividends  NSTARs current quarterly cash dividend rate is $0.375 per share or $1.50 per share on an annualized basis. On March 26, 2009, NSTARs Board of Trustees declared a quarterly cash dividend of $0.375 per share for shareholders of record on April 10, 2009, payable May 1, 2009.  Three Months Ended March 31, 2009 compared to Three Months Ended March 31, 2008  Executive Summary of Quarterly Results  Earnings per common share were as follows:  Three Months ended March 31,20092008% ChangeBasic and Diluted$0.57$0.553.6  Net income attributable to common shareholders was $61.0 million for the quarter ended March 31, 2009 compared to $59.2 million for the same period in 2008.  Major factors (after-tax) that contributed to the $1.8 million, or 3.0%, increase in 2009 earnings include:  ·Higher electric distribution revenues attributable to a 2009 SIP adjustment offset by slightly lower sales ($0.7 million)·Higher gas revenues attributable to a 3% increase in sales that resulted from colder weather than in the prior year ($1.1 million)·Higher transmission revenues as a result of increased investment base related to the Companys transmission facilities expansion ($2.9 million)·Lower interest expense primarily due to decreases in short-term interest rates ($1.7 million)·Lower operations and maintenance expense attributable to lower transportation costs, lower storm related costs and other company-wide cost reduction efforts  ($2.4 million)  These increases in earnings factors were partially offset by:  ·Higher depreciation and property tax expense in 2009 related to higher municipal tax rates and higher electric and gas plant investment ($2.7 million)  23     ·The absence of income from an environmental settlement that occurred during first quarter 2008 ($2.9 million)·The absence of a cumulative impact in 2008 of implementing the March 24, 2008 FERC ROE order ($2.4 million)  Significant cash flow events during the quarter include the following:  ·Cash flows from operating activities provided approximately $242.7 million, an increase of $40.9 million, as compared to the same period in 2008.  The increase primarily reflects the collection of regulatory deferrals related to Basic Service and CGAC·NSTAR invested approximately $108 million in capital projects to improve capacity and system reliability·Cash used in financing activities are $34 million higher than 2008. NSTAR paid approximately $40.1 million in common share dividends and paid-down approximately $140.8 million of short-term debt.  NSTAR issued, at a premium, $100 million of 5.625% debentures in February 2009  Energy sales  The following is a summary of retail electric and firm gas energy sales for the periods indicated:  Retail Electric Sales - MWhThree Months ended March 31,20092008% ChangeResidential1,726,0941,698,4931.6Commercial, Industrial and other3,579,8133,726,246(3.9)Total retail sales5,305,9075,424,739(2.2)  Firm Gas Sales and Transportation - BBtuThree Months ended March 31,20092008% ChangeResidential10,3349,7096.4Commercial and Industrial8,8448,934(1.0)Municipal1,4401,3794.4Total firm sales20,61820,0223.0  NSTARs electric energy sales in the three months ending March 31, 2009 declined 2.2% compared to 2008 despite favorable weather conditions resulting from a colder winter during 2009 as compared to 2008.  However, excluding the impact of an additional day due to leap day (February 29) in the first quarter of 2008, electric sales declined only 1%.  Electric sales have been impacted by the downturn in the economy that has resulted in lost sales from large industrial customers, commercial office and retail business vacancies, and by the impact of customer and NSTAR-sponsored conservation measures.  Industrial sales have been combined with commercial sales because they do not represent a significant share of electric sales or revenues.  Weather conditions positively impacted gas sales.  The 3.0% increase in firm gas and transportation sales is due to the colder winter weather that directly impacts residential sales.  Excluding the impact of an additional day due to the leap day in the first quarter of 2008, gas sales increased 4.3%.  All gas customer segments are impacted by poor economic conditions and continued customer conservation efforts.  Weather, fluctuations in fuel costs, conservation measures, and economic conditions affect sales to NSTARs residential and small commercial customers.  Economic conditions, fluctuations in fuel costs, and conservation measures affect NSTARs large commercial and industrial customers.  In terms of customer sector characteristics, industrial sales are less sensitive to weather than residential and  24    commercial sales, which are influenced by temperature variations.  Refer to the Electric Revenues and Gas Revenues sections below for more detailed discussions.  Weather Conditions  NSTAR forecasts its electric and natural gas sales based on normal weather conditions.  Actual results may vary from those projected due to actual weather conditions, energy conservation, and other factors.  Refer to the Cautionary Statement Regarding Forward-Looking Information section preceding Part 1 Financial Information of this Form 10-Q.  The demand for electricity and natural gas is affected by weather conditions.  Weather conditions impact electric sales primarily during the summer and, to a greater extent, gas sales during the winter season in NSTARs service area.  Customer heating or cooling usage may not directly correlate with historical levels or with the level of degree-days that occur (as further discussed below), particularly when weather patterns experienced are consistently colder or warmer.  Also, NSTARs electric and gas businesses are sensitive to variations in daily weather, are highly influenced by New Englands seasonal weather variations, and are susceptible to severe storm-related incidents that could adversely affect the Companys ability to provide energy.  Degree-days measure changes in daily mean temperature levels.  A degree-day is a unit measuring how much the outdoor daily mean temperature falls below (in the case of heating) or rises above (in the case of cooling) a base of 65 degrees.  The comparative information below relates to heating degree-days for the three months ended March 31, 2009 and 2008 and the number of heating degree-days in a normal year using a 30-year average.  NSTAR uses the normal 30-year average degree-days data to compare current temperature readings to a baseline or normal period, that is recalculated every ten years for the preceding 30 years (currently 1971-2000), as collected at the Worcester Massachusetts airport and Bostons Logan Airport for heating degree-day data and cooling degree-day data, respectively.  Weather conditions during the three months ended March 31, 2009 measured by heating degree-days were 5.2% higher/colder for 2009 as compared to 2008.  Refer to the Electric Revenues and Gas Revenues sections below for more detailed discussions.  Heating Degree-DaysThree months ended March 31, 20093,352Three months ended March 31, 20083,186Normal 30-Year Average3,304Percentage that 2009 was colder than 20085.2%Percentage that 2009 was colder than 30-year average1.5%  Operating revenues  Operating revenues for the first quarter of 2009 increased 5.8% from the same period in 2008 as follows:  (in millions)Three Months Ended March 31,Increase/(Decrease)20092008AmountPercentElectric revenuesRetail distribution and transmission$236.5$214.5$22.010.3%Energy, transition and other436.0404.731.37.7%Total retail electric revenues672.5619.253.38.6%Gas revenuesFirm and transportation62.161.20.91.5%Energy supply and other170.0173.5(3.5)(2.0)%Total gas revenues232.1234.7(2.6)(1.1)%Unregulated operations revenues43.241.71.53.6%Total operating revenues$947.8$895.6$52.25.8%   25    Electric revenues  NSTAR's largest earnings sources are the revenues derived from distribution and transmission rates approved by the DPU and the FERC.  Electric retail distribution revenues primarily represent charges to customers for recovery of the Company's capital investment, including a return component, and operation and maintenance costs related to its electric distribution infrastructure.  The transmission revenue component represents charges to customers for the recovery of similar costs to move the electricity over high voltage lines from the generator to the Company's substations.  The increase of $22 million, or 10.3% in retail distribution and transmission revenues primarily reflects:  ·Increase in transmission revenues primarily due to the higher investment base related to the Companys transmission facilities expansion ($21 million)·Higher distribution revenues due to the impact of the SIP to distribution rates.  This annual inflation-adjustment is offset by an equal and corresponding reduction in transition rates ($3.5 million)  These increases were partially offset by:  ·Decreased energy sales of 2.2% due primarily to the impact of an additional day in February 2008 caused by the leap year and to a lesser extent the impact of customer conservation measures ($2.3 million)  Energy, transition, and other revenues primarily represent charges to customers for the recovery of costs incurred by the Company in order to acquire the energy supply on behalf of its customers and a transition charge for recovery of the Company's prior investments in generating plants and the costs related to long-term power contracts.  The energy revenues relate to customers being provided energy supply under Basic Service.  These revenues are fully reconciled to the costs incurred and have no impact on NSTAR's consolidated net income.  Energy, transition, and other revenues also reflect revenues related to the Company's ability to effectively reduce stranded costs (incentive entitlements), rental revenue from electric property, and annual cost reconciliation true-up adjustments.  The $31.3 million increase in energy, transition, and other revenues is primarily attributable to the increased recovery of energy supply costs. Uncollected transition costs as a result of the reductions in transition rates are deferred and collected through future rates with a carrying charge.  Gas Revenues  Firm and transportation gas revenues primarily represent charges to customers for the Companys recovery of costs of its capital investment in gas infrastructure, including a return component, and for the recovery of costs for the ongoing operation and maintenance of that infrastructure.  The transportation revenue component represents charges to customers for the recovery of costs to move the natural gas over pipelines from gas suppliers to take stations located within the Companys service area.  The $0.9 million increase in firm and transportation revenues is primarily attributable to colder winter weather conditions partially offset by customers converting to alternate fuel sources from natural gas as a result of higher energy price concerns.  These factors primarily resulted in the increase in sales volumes of 3.0%.  Energy supply and other gas revenues primarily represent charges to customers for the recovery of costs to the Company in order to acquire the natural gas in the marketplace and a charge for recovery of the Company's gas supplier service costs.  The energy supply and other revenues decrease of $3.5 million primarily reflects a decrease in the cost of gas supply offset by the higher sales demand.  These revenues are fully reconciled with the costs currently recognized by the Company and, as a result, do not have an effect on the Company's earnings.   26    Unregulated Operations Revenues  Unregulated operating revenues are derived from NSTAR's district energy and telecommunications operations.  Unregulated revenues were $43.2 million in the first quarter of 2009 compared to $41.7 million in 2008, an increase of $1.5 million, or 3.6%.  The increase in unregulated revenues is primarily the result of increases in steam sales due to colder weather.  Operating expenses  Purchased power and transmission expense was $397.9 million in the first quarter of 2009 compared to $346.8 million in the same period of 2008, an increase of $51.1 million, or 14.7%.  Despite lower energy sales of 2.2%, the increase in expense reflects higher basic service and other energy supply costs of $23 million for NSTAR's regulated companies.  In addition, transmission costs increased $28 million due to an increase in regional network support costs.  NSTAR Electric adjusts its rates to collect the costs related to energy supply from customers on a fully reconciling basis.  Due to this rate adjustment mechanism, changes in the amount of energy supply expense have no impact on earnings.  Cost of gas sold, representing NSTAR Gas' supply expense, was $157.1 million in the first quarter of 2009 compared to $162.6 million in 2008, a decrease of $5.5 million, or 3.4%.  The decrease in cost of gas sold despite the 3% increase in sales reflects lower gas supply costs per therm, partially offset by the higher settlement costs of cash flow hedging contracts during the quarter.  NSTAR Gas maintains a flexible resource portfolio consisting of an all-requirements gas supply contract, transportation contracts on interstate pipelines, market area storage, and peaking services.  NSTAR Gas adjusts its rates to collect costs related to gas supply from customers on a fully reconciling basis and therefore changes in the amount of energy supply expense have no impact on earnings.  Operations and maintenance expense was $110 million in the first quarter of 2009 compared to $112.3 million in the same period of 2008, a decrease of $2.3 million, or 2%.  This decrease primarily relates to lower outside services, materials, and fuel costs ($1.8 million).  Also contributing was a lower level of storm related costs ($1.7 million).  These factors were partially offset by higher labor related costs.  Depreciation and amortization expense was $101.3 million in the first quarter of 2009 compared to $99.2 million in the same period of 2008, an increase of $2.1 million or 2.1%.  The increase primarily reflects higher depreciable distribution and transmission plant in service.  DSM and renewable energy programs expense was $19.2 million in the first quarter of 2009 compared to $18.3 million in the same period of 2008, an increase of $0.9 million, or 4.9%, that is consistent with the collection of conservation and renewable energy revenues.  These costs are in accordance with program guidelines established by the DPU and are collected from customers on a fully reconciling basis plus an incentive return.  NSTAR anticipates a significant increase in DSM spending during 2009 driven by requirements of the Green Communities Act.  Property and other taxes expense was $29.9 million in the first quarter of 2009 compared to $27.0 million in the same period of 2008, an increase of $2.9 million, or 10.7%, reflecting higher overall property investments and higher tax rates.  Income tax expenseattributable to operations was $35.9 million in the first quarter of 2009 compared to $33.9 million in the same period of 2008, an increase of $2 million, or 5.9%, reflecting higher pre-tax operating income in 2009.  Other income, net  Total other income, net was approximately $0.6 million in the first quarter of 2009 compared to $3.8 million in the same period of 2008, a decrease of $3.2 million, or 84%.  The decrease relates primarily to the absence of income related to an environmental settlement in first quarter 2008 ($2.9 million).   27    Interest charges (income)  Long-term debt and transition property securitization certificates interest charges were $39.8 million in the first quarter of 2009 compared to $41.4 million in the same period of 2008, a decrease of $1.6 million, or 3.9%.  This decrease in interest charges reflects:  ·Lower interest costs of $2.1 million on transition property securitization debt attributable to scheduled principal pay downs  This decrease was partially offset by:  ·Higher interest costs of $0.8 million associated with NSTAR Electrics February 2009 $100 million issuance of 5.625% debentures  Short-term debt and other interest charges (income), net were $4.0 million of net interest income in the first quarter of 2009 compared to $1.5 million of net interest income in the same period of 2008, a change of $2.5 million, or 167%.  The change in short-term and other interest charges (income) reflects:  ·Lower short-term borrowing costs of $2.6 million resulting from a 283 basis point decrease in the weighted average short-term borrowing rates from first quarter 2008 (3.46%) to first quarter 2009 (0.63%).  Partially offsetting the lower rates was an increase in the average level of borrowed funds as compared to the same period in 2008·Increased interest income of $0.9 million related to the timing of regulatory collections from customers  These decreases were offset by:  ·Lower interest income on income tax matters of $0.7 million attributable to a lower applicable Federal rate  AFUDC decreased $0.3 million in the first quarter of 2009 due to lower short-term borrowing rates.  Liquidity and Capital Resources  Financial Market Impact  The current disruption in the financial markets may adversely impact the availability of credit and the cost of credit to NSTAR and its subsidiary companies.  NSTAR and its subsidiaries utilize the commercial paper market to meet their short-term cash requirements.  NSTAR and NSTAR Electric currently have Revolving Credit Agreements in place through December 2012.  These Credit Agreements serve as a liquidity backup to the commercial paper program.  Short-term commercial paper debt obligations are commonly refinanced to long-term obligations with fixed-rate bonds or notes as needed and when interest rates are considered favorable.  Refer to Item 1A, Risk Factors,in NSTARs Annual Report on Form 10-K for the year ended December 31, 2008, for a further discussion.  As a result of continued declines in the equity markets and their impact on NSTARs Pension and PBOP Plan investments, NSTAR continues to evaluate the extent to which it may make additional cash contributions.  Should NSTAR elect to increase its level of funding to these plans, NSTAR believes it has adequate access to capital resources to support its contributions.  Working Capital  NSTAR anticipates refinancing its current maturities of long-term debt obligations.  28    Current Cash Flow Activity  Operating Activities  The net cash provided by operating activities was $242.7 million in the first quarter of 2009, as compared $201.8 million in the first quarter of 2008, an increase of approximately $40.9 million primarily due to favorable collections of regulatory deferrals, including collections on cost of gas, and several favorable changes in working capital accounts.  NSTAR anticipates making $25 million of contributions to the Pension Plan and an additional $27.3 million to the PBOP Plan during 2009.  Investing Activities  The net cash used in investing activities in the first quarter of 2009 was $108 million, compared to $119.8 million during the same period in 2008. The majority of these expenditures were for system reliability improvements and capacity expansion to meet expected growth in the NSTAR service territory.  Financing Activities  Net cash used in financing activities in the first quarter of 2009 was $122.3 million compared to $88.2 million in the first quarter of 2008.  Uses of cash primarily reflect long-term and securitized debt redemptions of $37.6 million in 2009 compared to $41.2 million in 2008, dividend payments of $40 million in 2009 compared to $37.4 million in 2008.  In addition, NSTAR's short-term debt decreased by $140.8 million to $442.1 million at March 31, 2009 compared to $582.9 million at December 31, 2008.  Sources of cash during the first quarter 2009 included proceeds from NSTAR Electric's issuance, at a premium of $4.6 million, of $100 million in ten-year fixed-rate (5.625%) Debentures that were used to pay down short-term debt.  The banking arrangements in place require NSTAR and its subsidiaries to make daily cash transfers to fund vendor checks that are presented for payment. These banking arrangements do not permit the right of offset among the Companys subsidiaries cash accounts.  In the event of a credit book balance in any one of the Companys cash accounts resulting from uncleared checks, the Company will adjust its disbursement cash account accordingly. Changes in the balances of the disbursement cash accounts are reflected in financing activities in the accompanying Consolidated Statements of Cash Flows.  Income Tax Payments  During the first quarter of 2009 and 2008, NSTAR made income tax payments of $14.4 million and $14.1 million, respectively.  Refundable Income Tax  The refundable income tax of $129.1 million related to the SSCM is probable to be fully refunded to NSTAR including interest, by December 31, 2009.  Sources of Additional Capital and Financial Covenant Requirements  With the exception of bond indemnity agreements and gas hedging agreements, NSTAR has no financial guarantees, commitments, debt or lease agreements that would require a change in terms and conditions, such as acceleration of payment obligations, as a result of a change in its credit rating.  However, in addition to the bond indemnity and gas hedging agreements, NSTAR's subsidiaries could be required to provide additional security for energy supply contract performance obligations, such as a letter of credit for their pro-rata share of the remaining value of such contracts.   29    NSTAR and NSTAR Electric have no financial covenant requirements under their respective long-term debt arrangements.  Pursuant to a revolving credit agreement, NSTAR Electric must maintain a total debt to capitalization ratio no greater than 65% at all times, excluding Transition Property Securitization Certificates and excluding accumulated other comprehensive income (loss) from common equity.  NSTAR Gas was in compliance with its financial covenant requirements including a minimum equity requirement, under its long-term debt arrangements at March 31, 2009 and December 31, 2008.  NSTAR's long-term debt other than its secured debt, issued by NSTAR Gas and MATEP, is unsecured.  NSTAR (Holding Company) currently has a $175 million revolving credit agreement that expires December 31, 2012.  At March 31, 2009 and December 31, 2008, there were no amounts outstanding under the revolving credit agreement.  This credit facility serves as a backup to NSTAR's $175 million commercial paper program that, at March 31, 2009 and December 31, 2008, had $175 million outstanding, respectively.  Under the terms of the credit agreement, NSTAR is required to maintain a maximum total consolidated debt to total capitalization ratio of not greater than 65% at all times, excluding Transition Property Securitization Certificates, and excluding accumulated other comprehensive income (loss) from common equity.  Commitment fees must be paid on the total agreement amount.  At March 31, 2009 and December 31, 2008, NSTAR was in full compliance with the aforementioned covenant as the ratios were 59.4% and 60.2%, respectively.  On April 6, 2009, the DPU approved NSTAR Electrics new two-year financing plan to issue an additional $500 million in long-term debt securities.  NSTAR Electric has approval from the FERC to issue short-term debt securities from time to time on or before October 22, 2010, with maturity dates no later than October 21, 2011, in amounts such that the aggregate principal does not exceed $655 million at any one time.  NSTAR Electric has a five-year, $450 million revolving credit agreement that expires December 31, 2012.  However, unless NSTAR Electric receives necessary approvals from the DPU, the credit agreement will expire 364 days from the date of the first draw under the agreement.  At March 31, 2009 and December 31, 2008, there were no amounts outstanding under the revolving credit agreement.  This credit facility serves as backup to NSTAR Electric's $450 million commercial paper program that had $232 million and $354.6 million outstanding balances at March 31, 2009 and December 31, 2008, respectively.  Under the terms of the revolving credit agreement, NSTAR Electric is required to maintain a consolidated maximum total debt to capitalization ratio of not greater than 65% at all times, excluding Transition Property Securitization Certificates, and excluding accumulated other comprehensive income (loss) from common equity.  At March 31, 2009 and December 31, 2008, NSTAR Electric was in full compliance with its covenants in connection with its short-term credit facilities, as the ratios were 47.4% and 47.6%, respectively.  NSTAR Gas has a $100 million line of credit.  This line of credit is due to expire on December 11, 2009.  NSTAR Gas anticipates that this line of credit will be renewed.  As of March 31, 2009 and December 31, 2008, NSTAR Gas had $35.1 million and $53.3 million outstanding, respectively.  Historically, NSTAR and its subsidiaries have had a variety of external sources of financing available, as previously indicated, at favorable rates and terms to finance its external cash requirements.  However, the availability of such financing at favorable rates and terms depends heavily upon prevailing market conditions and NSTAR's or its subsidiaries' financial condition and credit ratings.  NSTAR's goal is to maintain a capital structure that preserves an appropriate balance between debt and equity.  As of March 31, 2009, NSTARs subsidiaries could declare and pay dividends of up to approximately $1.2 billion of their total common equity (approximately $2.3 billion) to NSTAR and remain in compliance with debt covenants.  Based on NSTAR's key cash resources available as previously discussed, management believes its liquidity and capital resources are sufficient to meet its current and projected cash requirements.   30    Commitments and Contingencies  NSTAR is exposed to certain matters as discussed in this section under the caption "Critical Accounting Policies and Estimates."  Item 3.  Quantitative and Qualitative Disclosure About Market Risk  Risk Management  NSTARs Energy Procurement Policy governs all energy-related procurement transactions of NSTAR Electric and NSTAR Gas. This Policy is reviewed annually and is administered by NSTARs Risk Committee. The Committee is chaired by NSTARs chief executive officer and includes other senior officers.  Items covered by this Policy and approved by the Committee are all new energy supply transactions, authorization limits, energy related derivative and hedging transactions, and counter-party credit profiles.  Commodity and Credit Risk  Although NSTAR has material energy commodity purchase contracts, any potential market risk, including counter-party credit risk, should not have an adverse impact on NSTARs results of operations, cash flows, or financial position.  NSTAR Electric and NSTAR Gas have rate-making mechanisms that allow for the recovery of energy supply costs from those customers who make commodity purchases from NSTARs electric and gas subsidiaries rather than from the competitive market supplier.  All energy supply costs incurred by NSTAR Electric and NSTAR Gas in providing energy to their retail customers are recovered on a fully reconciling basis.  In addition, NSTAR has minimal cash flow risk due to the short-term nature of these contracts and the rate-making mechanics that permit recovery of these costs in a timely manner.  The majority of NSTARs electric and gas commodity purchase contracts range in term from three to twelve months.  NSTAR Electric has the ability to seek cost recovery and adjust its rates as frequently as every three months for its large commercial and industrial customers and every six months for its residential customers.  NSTAR Gas has the ability to seek cost recovery as required if costs exceed 5% of the current projected cost recovery level.  Both NSTAR Electric and NSTAR Gas earn a carrying charge on under-collected commodity balances that would mitigate any incremental short-term borrowings costs.  NSTAR believes it is unlikely that it would be exposed to a liquidity risk resulting from significant market price increases based on the recovery mechanisms currently in place.  To mitigate the cash flow and cost variability related to the commodity price risk on approximately one-third of its natural gas purchases, NSTAR Gas purchases financial futures contracts on behalf of its customers.  NSTAR Gas has a rate-making mechanism that provides for recovery of the actual settlement value of these contracts on a fully reconciling basis.  Refer to the accompanying Notes to Consolidated Financial Statements, Note C. Derivative Instruments, Gas Hedging Agreements for a further discussion.  Interest Rate Risk  NSTAR believes its interest risk primarily relates to short-term debt obligations and anticipated future long-term debt financing requirements to fund its capital programs.  These short-term debt obligations are typically refinanced with fixed-rate long-term notes as needed and when market interest rates are favorable.  The Company is exposed to changes in interest rates primarily based on levels of short-term commercial paper outstanding.  The average weighted average interest rates, including fees for short-term indebtedness, were 0.6% and 3.5% for the three months ended March 31, 2009 and 2008, respectively.  On a long-term basis, NSTAR mitigates its interest rate risk through the issuance of mostly fixed rate debt of various maturities.   31    Item 4.  Controls and Procedures  NSTAR's disclosure controls and procedures are designed to ensure that information required to be disclosed in reports that it files or submits under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission.  As of the end of the period covered by this Quarterly Report on Form 10-Q, NSTAR carried out an evaluation, under the supervision and with the participation of NSTAR's management, including NSTAR's Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of NSTAR's disclosure controls and procedures pursuant to Securities Exchange Act of 1934 Rules 13a-15(e) or 15d-15(e).  Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that NSTAR's disclosure controls and procedures were effective (1) to timely alert them to material information relating to NSTAR's information required to be disclosed by NSTAR in the reports that it files or submits under the Securities Exchange Act of 1934 and (2) to ensure that appropriate information is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms.  There have been no changes in NSTAR's internal control over financial reporting (as defined in Rules 13a-15(f) or 15d-15(f) of the Securities Exchange Act of 1934) during NSTAR's most recently completed fiscal quarter that have materially affected, or are reasonably likely to materially affect, NSTAR's internal control over financial reporting.  Part II.  Other Information   Item 1.  Legal Proceedings  In the normal course of its business, NSTAR and its subsidiaries are involved in certain legal matters, including civil litigation.  Management is unable to fully determine a range of reasonably possible court-ordered damages, settlement amounts, and related litigation costs ("legal liabilities") that would be in excess of amounts accrued and amounts covered by insurance.  Based on the information currently available, NSTAR does not believe that it is probable that any such legal liabilities will have a material impact on its consolidated financial position.  However, it is reasonably possible that additional legal liabilities that may result from changes in circumstances could have a material impact on its results of operations, financial condition or cash flows.  Item 1A.  Risk Factors  Shareholders or prospective investors should carefully consider the risk factors that were previously disclosed in NSTAR's Annual Report on Form 10-K for the year ended December 31, 2008.  Item 2(c).  Unregistered Sales of Equity Securities and Use of Proceeds  Common shares of NSTAR issued under the NSTAR Dividend Reinvestment and Direct Common Shares Purchase Plan, the 2007 Long Term Incentive Plan and the NSTAR Savings Plan may consist of newly issued shares from the Company or shares purchased in the open market by the Company or an independent agent.  During the three-month period ended March 31, 2009, all shares listed below were acquired in the open market.  Total Number of Common
Shares PurchasedAverage Price
Paid Per ShareJanuary172,702$32.66February194,453$32.58March100,714$29.71Total first quarter467,869$31.99  32       Item 6.  Exhibits  Exhibit4-Instruments Defining the Rights of Security Holders, Including Indentures-Management agrees to furnish to the Securities and Exchange Commission, upon request, a copy of any agreement or instrument of NSTAR and its subsidiaries defining the rights of holders of any non-registered debt whose authorization does not exceed 10% of total assets.Exhibits filed herewith:Exhibit15-Letter Re Unaudited Interim Financial Information15.1PricewaterhouseCoopers LLP Awareness LetterExhibit31-Rule 13a - 14(a)/15d-14(a) Certifications31.1Certification Statement of Chief Executive Officer of NSTAR pursuant to Section 302 of the Sarbanes-Oxley Act of 200231.2Certification Statement of Chief Financial Officer of NSTAR pursuant to Section 302 of the Sarbanes-Oxley Act of 2002Exhibit32-Section 1350 Certifications32.1Certification Statement of Chief Executive Officer of NSTAR pursuant to Section 906 of the Sarbanes-Oxley Act of 200232.2Certification Statement of Chief Financial Officer of NSTAR pursuant to Section 906 of the Sarbanes-Oxley Act of 2002Exhibit99-Additional Exhibits99.1Report of Independent Registered Public Accounting Firm**Rule 436(c) of the 1933 Act provides that a report on unaudited interim financial information shall not be considered part of a registration statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Section 7 or 11 of the 1933 Act.  Therefore, the accountant is not subject to the liability provisions of Section 11 of the 1933 Act.  33        SIGNATURE  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.     NSTAR(Registrant)Date:   May 5, 2009By: /s/ R.  J.  WEAFER, JR.Robert J.  Weafer, Jr.
Vice President, Controller and
Chief Accounting Officer
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