EVERSOURCE ENERGY 10-K

Item 9A. Controls and Procedures Management, on behalf of Eversource, CL&P, NSTAR Electric and PSNH, is responsible for the preparation, integrity, and fair presentation of the accompanying Financial Statements and other sections of this combined Annual Report on Form 10-K. Eversource's internal controls over financial reporting were audited by Deloitte & Touche LLP. Management, on behalf of Eversource, CL&P, NSTAR Electric and PSNH, is responsible for establishing and maintaining adequate internal controls over financial reporting. The internal control framework and processes have been designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP. There are inherent limitations of internal controls over financial reporting that could allow material misstatements due to error or fraud to occur and not be prevented or detected on a timely basis by employees during the normal course of business. Additionally, internal controls over financial reporting may become inadequate in the future due to changes in the business environment. Under the supervision and with the participation of the principal executive officer and principal financial officer, an evaluation of the effectiveness of internal controls over financial reporting was conducted based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this evaluation under the framework in COSO, management concluded that internal controls over financial reporting at Eversource, CL&P, NSTAR Electric and PSNH were effective as of December 31, 2025. Management, on behalf of Eversource, CL&P, NSTAR Electric and PSNH, evaluated the design and operation of the disclosure controls and procedures as of December 31, 2025 to determine whether they are effective in ensuring that the disclosure of required information is made timely and in accordance with the Securities Exchange Act of 1934 and the rules and regulations of the SEC. This evaluation was made under management's supervision and with management's participation, including the principal executive officer and principal financial officer as of the end of the period covered by this Annual Report on Form 10-K. There are inherent limitations of disclosure controls and procedures, including the possibility of human error and the circumventing or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. The principal executive officer and principal financial officer have concluded, based on their review, that the disclosure controls and procedures of Eversource, CL&P, NSTAR Electric and PSNH are effective to ensure that information required to be disclosed by us in reports filed under the Securities Exchange Act of 1934 (i) is recorded, processed, summarized, and reported within the time periods specified in SEC rules and regulations and (ii) is accumulated and communicated to management, including the principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosures. There have been no changes in internal controls over financial reporting for Eversource, CL&P, NSTAR Electric and PSNH during the quarter ended December 31, 2025 that have materially affected, or are reasonably likely to materially affect, internal controls over financial reporting. Item 9B. Other Information During the quarter ended December 31, 2025, none of the Company’s directors or officers adopted , modified, or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as such terms are defined under Item 408 of Regulation S-K. 149 PART III Item 10. Directors, Executive Officers and Corporate Governance Eversource Energy The information required by this Item 10 for Eversource Energy is incorporated herein by reference to certain information contained in the sections captioned “Election of Trustees,” and “Governance of Eversource Energy” plus related subsections, of Eversource Energy’s definitive proxy statement for solicitation of proxies, expected to be filed with the SEC on or about March 27, 2026. Information concerning executive officers of Eversource Energy required by this Item 10 is reported under a separate caption entitled “Information About Our Executive Officers” in Part I of this report. CL&P, NSTAR Electric and PSNH Certain information required by this Item 10 is omitted for CL&P, NSTAR Electric and PSNH pursuant to Instruction I(2)(c) to Form 10-K, Omission of Information by Certain Wholly Owned Subsidiaries. Item 11. Executive Compensation Eversource Energy The information required by this Item 11 for Eversource Energy is incorporated herein by reference to certain information contained in Eversource Energy's definitive proxy statement for solicitation of proxies, which is expected to be filed with the SEC on or about March 27, 2026, under the sections captioned “Compensation Discussion and Analysis,” plus related subsections, and “Compensation Committee Report,” plus related subsections following such Report. CL&P, NSTAR Electric and PSNH Certain information required by this Item 11 has been omitted for CL&P, NSTAR Electric and PSNH pursuant to Instruction I(2)(c) to Form 10-K, Omission of Information by Certain Wholly-Owned Subsidiaries. Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters Eversource Energy In addition to the information below under "Securities Authorized for Issuance Under Equity Compensation Plans," incorporated herein by reference is the information contained in the sections "Securities Ownership of Certain Beneficial Owners" and "Common Share Ownership of Trustees and Management" of Eversource Energy's definitive proxy statement for solicitation of proxies, expected to be filed with the SEC on or about March 27, 2026. CL&P, NSTAR Electric and PSNH Certain information required by this Item 12 has been omitted for CL&P, NSTAR Electric and PSNH pursuant to Instruction I(2)(c) to Form 10-K, Omission of Information by Certain Wholly-Owned Subsidiaries. SECURITIES AUTHORIZED FOR ISSUANCE UNDER EQUITY COMPENSATION PLANS The following table sets forth the number of Eversource Energy common shares issuable under Eversource Energy equity compensation plans, as well as their weighted exercise price, as of December 31, 2025, in accordance with the rules of the SEC: Plan Category Number of securities to be issued upon exercise of outstanding options, warrants and rights (1) Weighted-average exercise price of outstanding options, warrants and rights (2) Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (1) ) Equity compensation plans approved by security holders 1,749,624 $— 3,051,466 Equity compensation plans not approved by security holders (3) — — — Total 1,749,624 $— 3,051,466 (1) Includes 731,181 common shares for distribution in respect of restricted share units, and 1,018,443 performance shares issuable at target, all pursuant to the terms of our Incentive Plans. (2) The weighted-average exercise price does not take into account restricted share units or performance shares, which have no exercise price. (3) As of December 31, 2025, there were no equity compensation plans not approved by security holders. 150 For information regarding our Incentive Plans, see Note 11C, "Employee Benefits - Share Based Payments," to the financial statements. Item 13. Certain Relationships and Related Transactions, and Director Independence Eversource Energy Incorporated herein by reference is the information contained in the sections captioned "Trustee Independence" and "Related Person Transactions" of Eversource Energy's definitive proxy statement for solicitation of proxies, expected to be filed with the SEC on or about March 27, 2026. CL&P, NSTAR Electric and PSNH Certain information required by this Item 13 has been omitted for CL&P, NSTAR Electric and PSNH pursuant to Instruction I(2)(c) to Form 10-K, Omission of Information by Certain Wholly-Owned Subsidiaries . Item 14. Principal Accountant Fees and Services Eversource Energy Incorporated herein by reference is the information contained in the section "Relationship with Principal Independent Registered Public Accounting Firm" of Eversource Energy's definitive proxy statement for solicitation of proxies, expected to be filed with the SEC on or about March 27, 2026. CL&P, NSTAR Electric and PSNH Pre-Approval of Services Provided by Principal Auditors None of CL&P, NSTAR Electric and PSNH is subject to the audit committee requirements of the SEC, the national securities exchanges or the national securities associations. CL&P, NSTAR Electric and PSNH obtain audit services from the independent auditor engaged by the Audit Committee of Eversource Energy's Board of Trustees. Eversource Energy's Audit Committee has established policies and procedures regarding the pre-approval of services provided by the principal auditors. Those policies and procedures delegate pre-approval of services to the Eversource Energy Audit Committee Chair provided that such offices are held by Trustees who are "independent" within the meaning of the Sarbanes-Oxley Act of 2002 and that all such pre-approvals are presented to the Eversource Energy Audit Committee at the next regularly scheduled meeting of the Committee. The following relates to fees and services for the entire Eversource Energy system, including Eversource Energy, CL&P, NSTAR Electric and PSNH. Fees Billed By Principal Independent Registered Public Accounting Firm The aggregate fees billed to the Company and its subsidiaries by Deloitte & Touche LLP, the member firms of Deloitte Touche Tohmatsu, and their respective affiliates (collectively, the Deloitte Entities), for the years ended December 31, 2025 and 2024 totaled $7,048,414 and $7,454,414, respectively. In addition, affiliates of Deloitte & Touche LLP as noted below provide other accounting services to the Company. Audit and Non-Audit Fees 2025 2024 Audit Fees (1) $ 5,711,000 $ 5,984,500 Audit Related Fees (2) 1,335,500 1,386,000 All Other Fees (3) 1,914 83,914 TOTAL $ 7,048,414 $ 7,454,414 (1) Audit Fees consisted of fees related to the audits of financial statements of Eversource Energy and its subsidiaries in the Annual Report on Form 10-K, reviews of financial statements in the Combined Quarterly reports on Form 10-Q of Eversource Energy and its subsidiaries, consultations with management, regulatory and compliance filings, system conversion quality assurance, out of pocket expenses, and audits of internal controls over financial reporting for the years ended December 31, 2025 and 2024. (2) Audit Related Fees were incurred for procedures performed in the ordinary course of business in support of Eversource’s ATM equity offering program, certain regulatory filings, comfort letters, consents, and other costs related to registration statements and financials for the years ended December 31, 2025 and 2024. (3) All Other Fees for the years ended December 31, 2025 and 2024 related to an annual license for access to an accounting standards research tool. All Other Fees for the year ended December 31, 2024 also related to a system pre-implementation control review. The Audit Committee pre-approves all auditing services and permitted audit-related or other services (including the fees and terms thereof) to be performed for us by our independent registered public accounting firm, subject to the de minimis exceptions for non-audit services described in 151 Section 10A(i)(1)(B) of the Securities Exchange Act of 1934, which are approved by the Audit Committee prior to the completion of the audit. The Audit Committee may form and delegate its authority to subcommittees consisting of one or more members when appropriate, including the authority to grant pre-approvals of audit and permitted non-audit services, provided that decisions of such subcommittees to grant pre-approvals are presented to the full Audit Committee at its next scheduled meeting. During 2025, all services described above were pre-approved by the Audit Committee or its Chair. The Audit Committee has considered whether the provision by the Deloitte Entities of the non-audit services described above was allowed under Rule 2-01(c)(4) of Regulation S-X and was compatible with maintaining the independence of the registered public accountants and has concluded that the Deloitte Entities were and are independent of us in all respects. 152 PART IV Item 15. Exhibits and Financial Statement Schedules (a) 1. Financial Statements: The financial statements filed as part of this Annual Report on Form 10-K are set forth under Item 8, "Financial Statements and Supplementary Data." 2. Schedules I. Financial Information of Registrant: Eversource Energy (Parent) Balance Sheets as of December 31, 2025 and 2024 S-1 Eversource Energy (Parent) Statements of Income for the Years Ended December 31, 2025, 2024 and 2023 S-2 Eversource Energy (Parent) Statements of Comprehensive Income for the Years Ended December 31, 2025, 2024 and 2023 S-2 Eversource Energy (Parent) Statements of Cash Flows for the Years Ended December 31, 2025, 2024 and 2023 S-3 II. Valuation and Qualifying Accounts and Reserves for Eversource, CL&P, NSTAR Electric and PSNH for 2025, 2024 and 2023 S-4 All other schedules of the companies for which inclusion is required in the applicable regulations of the SEC are permitted to be omitted under the related instructions or are not applicable, and therefore have been omitted. 3. Exhibit Index E-1 Item 16. Form 10-K Summary Not applicable. 153 SCHEDULE I EVERSOURCE ENERGY (PARENT) FINANCIAL INFORMATION OF REGISTRANT BALANCE SHEETS AS OF DECEMBER 31, 2025 AND 2024 (Thousands of Dollars) 2025 2024 ASSETS Current Assets: Cash $ 200 $ 1,083 Accounts Receivable from Subsidiaries 215,193 100,320 Notes Receivable from Subsidiaries 1,592,100 2,051,400 Prepayments and Other Current Assets, Including Assets Held for Sale 57,002 96,313 Total Current Assets 1,864,495 2,249,116 Deferred Debits and Other Assets: Investments in Subsidiary Companies, at Equity 21,413,181 20,080,215 Notes Receivable from Subsidiaries 2,296,500 2,296,500 Accumulated Deferred Income Taxes 100,941 113,718 Goodwill 3,550,070 3,231,811 Long-Term Assets Held for Sale — 335,393 Other Long-Term Assets 26,700 24,582 Total Deferred Debits and Other Assets 27,387,392 26,082,219 Total Assets $ 29,251,887 $ 28,331,335 LIABILITIES AND CAPITALIZATION Current Liabilities: Notes Payable $ 1,280,000 $ 1,538,011 Long-Term Debt - Current Portion 1,002,439 600,000 Accounts Payable to Subsidiaries 43,698 45,326 Accrued Interest 169,516 168,748 Other Current Liabilities 97,176 57,923 Total Current Liabilities 2,592,829 2,410,008 Deferred Credits and Other Liabilities: Long-Term Liabilities Held for Sale — 15,028 Other Long-Term Liabilities 115,299 137,656 Total Deferred Credits and Other Liabilities 115,299 152,684 Long-Term Debt 10,346,488 10,729,256 Common Shareholders' Equity: Common Shares 1,914,273 1,878,622 Capital Surplus, Paid in 9,937,878 9,428,905 Retained Earnings 4,504,983 3,929,141 Accumulated Other Comprehensive Loss ( 20,507 ) ( 26,472 ) Treasury Stock ( 139,356 ) ( 170,809 ) Common Shareholders' Equity 16,197,271 15,039,387 Total Liabilities and Capitalization $ 29,251,887 $ 28,331,335 See the Combined Notes to Financial Statements in this Annual Report on Form 10-K for a description of significant accounting matters related to Eversource parent, including the sale status of Aquarion as described in Note 24, “Assets Held for Sale,” Eversource common shares information as described in Note 18, "Common Shares," material obligations and guarantees as described in Note 13, "Commitments and Contingencies," and debt agreements as described in Note 8, "Short-Term Debt," and Note 9, "Long-Term Debt." S-1 SCHEDULE I EVERSOURCE ENERGY (PARENT) FINANCIAL INFORMATION OF REGISTRANT STATEMENTS OF INCOME/(LOSS) FOR THE YEARS ENDED DECEMBER 31, 2025, 2024 AND 2023 (Thousands of Dollars, Except Share Information) 2025 2024 2023 Operating Revenues $ 2,067 $ 4,442 $ 840 Operating Expenses: Acquisition and Integration Costs Allowed for Recovery ( 82,346 ) — — Other 10,458 20 12,769 Loss on Pending Sale of Aquarion — 297,000 — Total Operating Expenses ( 71,888 ) 297,020 12,769 Operating Income/(Loss) 73,955 ( 292,578 ) ( 11,929 ) Interest Expense 548,723 549,511 397,281 Other Income, Net: Equity in Earnings/(Losses) of Subsidiaries 1,923,453 1,359,297 ( 312,040 ) Other, Net 166,600 214,444 188,003 Other Income/(Loss), Net 2,090,053 1,573,741 ( 124,037 ) Income/(Loss) Before Income Tax Benefit 1,615,285 731,652 ( 533,247 ) Income Tax Benefit ( 77,087 ) ( 80,001 ) ( 91,007 ) Net Income/(Loss) $ 1,692,372 $ 811,653 $ ( 442,240 ) Basic Earnings/(Loss) per Common Share $ 4.56 $ 2.27 $ ( 1.27 ) Diluted Earnings/(Loss) per Common Share $ 4.56 $ 2.27 $ ( 1.26 ) Weighted Average Common Shares Outstanding: Basic 370,852,601 357,482,965 349,580,638 Diluted 371,259,264 357,779,408 349,840,481 STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Thousands of Dollars) 2025 2024 2023 Net Income/(Loss) $ 1,692,372 $ 811,653 $ ( 442,240 ) Other Comprehensive Income, Net of Tax: Qualified Cash Flow Hedging Instruments 20 20 20 Changes in Unrealized Gains on Marketable Securities — — 1,252 Changes in Funded Status of Pension, SERP and PBOP Benefit Plans 5,945 7,245 4,412 Other Comprehensive Income, Net of Tax 5,965 7,265 5,684 Comprehensive Income/(Loss) $ 1,698,337 $ 818,918 $ ( 436,556 ) See the Combined Notes to Financial Statements in this Annual Report on Form 10-K for a description of significant accounting matters related to Eversource parent, including the sale status of Aquarion as described in Note 24, “Assets Held for Sale,” Eversource common shares information as described in Note 18, "Common Shares," material obligations and guarantees as described in Note 13, "Commitments and Contingencies," and debt agreements as described in Note 8, "Short-Term Debt," and Note 9, "Long-Term Debt." S-2 SCHEDULE I EVERSOURCE ENERGY (PARENT) FINANCIAL INFORMATION OF REGISTRANT STATEMENTS OF CASH FLOWS FOR THE YEARS ENDED DECEMBER 31, 2025, 2024 and 2023 (Thousands of Dollars) 2025 2024 2023 Operating Activities: Net Income/(Loss) $ 1,692,372 $ 811,653 $ ( 442,240 ) Adjustments to Reconcile Net Income/(Loss) to Net Cash Flows Provided by Operating Activities: Equity in (Earnings)/Losses of Subsidiaries ( 1,923,453 ) ( 1,359,297 ) 312,040 Cash Dividends Received from Subsidiaries 1,340,500 1,273,700 1,027,400 Deferred Income Taxes 12,098 ( 99,692 ) ( 22,256 ) Loss on Pending Sale of Aquarion — 297,000 — Other 88,966 57,469 ( 12,834 ) Changes in Current Assets and Liabilities: Accounts Receivables from Subsidiaries ( 32,527 ) ( 40,129 ) ( 6,853 ) Accounts Receivable from EGMA for Acquisition and Integration Costs Allowed for Recovery ( 82,346 ) — — Taxes Receivable/Accrued, Net 86,083 22,464 ( 80,968 ) Accounts Payable to Subsidiaries ( 1,628 ) 7,275 4,521 Other Current Assets and Liabilities, Net ( 4,322 ) 58,572 35,357 Net Cash Flows Provided by Operating Activities 1,175,743 1,029,015 814,167 Investing Activities: Capital Contributions to Subsidiaries ( 755,000 ) ( 2,026,500 ) ( 1,369,700 ) Return of Capital from Subsidiaries 11,000 17,000 438,000 Increase/(Decrease) in Notes Receivable from Subsidiaries 459,300 201,500 ( 1,578,100 ) Other Investing Activities — — 147,567 Net Cash Flows Used in Investing Activities ( 284,700 ) ( 1,808,000 ) ( 2,362,233 ) Financing Activities: Issuance of Common Shares, Net of Issuance Costs 465,389 989,447 — Cash Dividends on Common Shares ( 1,093,074 ) ( 1,001,488 ) ( 918,995 ) Issuance of Long-Term Debt 600,000 2,400,000 3,350,000 Retirement of Long-Term Debt ( 600,000 ) ( 1,350,000 ) ( 1,200,000 ) (Decrease)/Increase in Notes Payable ( 258,011 ) ( 233,894 ) 329,705 Other Financing Activities ( 6,241 ) ( 24,539 ) ( 13,076 ) Net Cash Flows (Used in)/Provided by Financing Activities ( 891,937 ) 779,526 1,547,634 Net (Decrease)/Increase in Cash and Restricted Cash ( 894 ) 541 ( 432 ) Cash and Restricted Cash - Beginning of Year 1,156 615 1,047 Cash and Restricted Cash - End of Year $ 262 $ 1,156 $ 615 Supplemental Cash Flow Information: Cash Paid/(Received) During the Year for: Interest $ 541,910 $ 483,101 $ 366,645 Income Taxes $ ( 171,114 ) $ 443 $ 23,984 See the Combined Notes to Financial Statements in this Annual Report on Form 10-K for a description of significant accounting matters related to Eversource parent, including the sale status of Aquarion as described in Note 24, “Assets Held for Sale,” Eversource common shares information as described in Note 18, "Common Shares," material obligations and guarantees as described in Note 13, "Commitments and Contingencies," and debt agreements as described in Note 8, "Short-Term Debt," and Note 9, "Long-Term Debt." S-3 SCHEDULE II EVERSOURCE ENERGY AND SUBSIDIARIES VALUATION AND QUALIFYING ACCOUNTS AND RESERVES FOR THE YEARS ENDED DECEMBER 31, 2025, 2024 AND 2023 (Thousands of Dollars) Column A Column B Column C Column D Column E Additions (1) (2) Description: Balance as of Beginning of Year Charged to Costs and Expenses Charged to Other Accounts - Describe (a) Deductions -Describe (b) Balance as of End of Year Eversource : Reserves Deducted from Assets - Reserves for Uncollectible Accounts: 2025 $ 556,164 $ 101,141 $ 120,006 $ 196,772 $ 580,539 2024 554,455 74,069 119,659 192,019 556,164 2023 486,297 72,468 158,205 162,515 554,455 CL&P: Reserves Deducted from Assets - Reserves for Uncollectible Accounts: 2025 $ 279,108 $ 17,949 $ 43,110 $ 81,653 $ 258,514 2024 296,030 17,190 46,840 80,952 279,108 2023 225,320 11,675 126,360 67,325 296,030 NSTAR Electric: Reserves Deducted from Assets - Reserves for Uncollectible Accounts: 2025 $ 114,910 $ 41,430 $ 37,050 $ 60,829 $ 132,561 2024 97,026 33,607 37,653 53,376 114,910 2023 94,958 22,791 17,488 38,211 97,026 PSNH : Reserves Deducted from Assets - Reserves for Uncollectible Accounts: 2025 $ 14,090 $ 11,973 $ 7,193 $ 9,709 $ 23,547 2024 14,322 4,688 5,131 10,051 14,090 2023 29,236 3,989 ( 8,735 ) 10,168 14,322 (a) Amounts relate to uncollectible accounts receivables reserved for that are not charged to bad debt expense. CL&P, NSTAR Electric, NSTAR Gas, EGMA and Yankee Gas are allowed to recover in rates, amounts associated with certain uncollectible hardship accounts receivable. CL&P, NSTAR Electric, PSNH, NSTAR Gas and EGMA are also allowed to recover uncollectible energy supply costs through regulatory tracking mechanisms. (b) Amounts written off, net of recoveries. S-4 EXHIBIT INDEX Each document described below is incorporated by reference by the registrant(s) listed to the files identified, unless designated with a (*), which exhibits are filed herewith. Management contracts and compensation plans or arrangements are designated with a (+). Exhibit Number Description 3. Articles of Incorporation and By-Laws (A) Eversource Energy 3.1 Declaration of Trust of Eversource Energy, as amended through May 1, 2025 (Exhibit 3.1, Eversource Energy Current Report on Form 8-K filed on May 1, 2025, File No. 001-05324) (B) The Connecticut Light and Power Company 3.1 Amended and Restated Certificate of Incorporation (Exhibit 3(i), CL&P Current Report on Form 8-K filed on January 9, 2012, File No. 000-00404) 3.2 By-laws of CL&P, as amended and restated effective September 29, 2014 (Exhibit 3.1, CL&P Current Report on Form 8-K filed on October 2, 2014, File No. 000-00404) (C) NSTAR Electric Company 3.1 Restated Articles of Organization of NSTAR Electric Company, fka Boston Edison Company (Exhibit 3.1, NSTAR Electric Quarterly Report on Form 10-Q for the Quarter Ended June 30, 1994 filed on August 12, 1994, File No. 001-02301) 3.2 Bylaws of NSTAR Electric Company, as amended and restated effective September 29, 2014 (Exhibit 3.1, NSTAR Electric Current Report on Form 8-K filed on October 2, 2014, File No. 000-02301) (D) Public Service Company of New Hampshire 3.1 Articles of Incorporation, as amended to May 16, 1991 (Exhibit 3.3.1, PSNH Annual Report on Form 10-K filed on March 25, 1994, File No. 001-06392) 3.2 By-laws of PSNH, as in effect June 27, 2008 (Exhibit 3, PSNH Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2008 filed on August 7, 2008, File No. 001-06392) 4. Instruments defining the rights of security holders, including indentures (A) Eversource Energy 4.1 Indenture between Eversource Energy and The Bank of New York as Trustee dated as of April 1, 2002 (Exhibit A-3, Eversource Energy 35-CERT filed on April 16, 2002, File No. 070-09535) 4.1.1 Seventh Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of March 1, 2016, relating to $250 million of Senior Notes, Series J, due 2026 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on March 15, 2016, File No. 001-05324) 4.1.2 Tenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of January 1, 2018, relating to $450 million of Senior Notes, Series M, Due 2028 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on January 12, 2018, File No. 001-05324) 4.1.3 Eleventh Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of December 1, 2018, relating to $400 million of Senior Notes, Series N, Due 2023 and $500 million of Senior Notes, Series O, Due 2029 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on December 18, 2018, File No. 001-05324) E-1 4.1.4 Twelfth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of January 1, 2020, relating to $650 million of Senior Notes, Series P, Due 2050 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on January 16, 2020, File No. 001-05324) 4.1.5 Thirteenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of August 1, 2020, relating to $300 million aggregate principal amount of Senior Notes, Series Q, Due 2025 and $600 million aggregate principal amount of Senior Notes, Series R, Due 2030 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on August 20, 2020, File No. 001-05324) 4.1.6 Fourteenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of March 1, 2021, relating to $350 million aggregate principal amount of Senior Notes, Series S, Due 2031 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on March 16, 2021, File No. 001-05324) 4.1.7 Fifteenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of August 1, 2021, relating to $350 million aggregate principal amount of Floating Rate Senior Notes, Series T and $300 million aggregate principal amount of Senior Notes, Series U, Due 2026 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on August 13, 2021, File No. 001-05324) 4.1.8 Sixteenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of February 1, 2022, relating to $650 million aggregate principal amount of Senior Notes, Series V, Due 2027 and $650 million aggregate principal amount of Senior Notes, Series W, Due 2032 ( Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on February 25, 2022, File No. 001-05324 ) 4.1.9 Seventeenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of June 1, 2022, relating to $900 million aggregate principal amount of Senior Notes, Series X, Due 2024 and $600 million aggregate principal amount of Senior Notes, Series Y, Due 2027 ( Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on June 27, 2022, File No. 001-05324 ) 4.1.10 Eighteenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of March 1, 2023, relating to $1.3 billion aggregate principal amount of Senior Notes, Series Z, Due 2028 ( Exhibit 4.1, Eversource Energy Current Report on Form 8‑K filed on March 6, 2023, File No. 001-05324 ) 4.1.11 Nineteenth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of May 1, 2023, relating to $450 million aggregate principal amount of Senior Notes, Series AA, Due 2026 and $800 million aggregate principal amount of Senior Notes, Series BB, Due 2033 ( Exhibit 4.3, Eversource Energy Current Report on Form 8‑K filed on May 11, 2023, File No. 001-05324 ) 4.1.12 Twentieth Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of November 1, 2023, relating to $800 million aggregate principal amount of Senior Notes, Series CC, Due 2029 ( Exhibit 4.1, Eversource Energy Current Report on Form 8‑K filed on November 13, 2023, File No. 001-05324 ) 4.1.13 Twenty-First Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of January 1, 2024, relating to $350 million aggregate principal amount of Senior Notes, Series DD, Due 2027 and $650 million aggregate principal amount of Senior Notes, Series EE, Due 2034 ( Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on January 19, 2024, File No. 001-05324 ) 4.1.14 Twenty-Second Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of April 1, 2024, relating to $700 million aggregate principal amount of Senior Notes, Series FF, Due 2031 and $700 million aggregate principal amount of Senior Notes, Series GG, Due 2034 (Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on April 18, 2024, File No. 001-05324) 4.1.15 Twenty-Third Supplemental Indenture between Eversource Energy and The Bank of New York Trust Company N.A., as Trustee, dated as of October 1, 2025, relating to $600 million aggregate principal amount of Senior Notes, Series HH, Due 2030 ( Exhibit 4.1, Eversource Energy Current Report on Form 8-K filed on October 17, 2025, File No. 001-05324 ) E-2 4.2 Eversource Energy Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (Exhibit 4.3, Eversource Energy Annual Report on Form 10-K filed on February 27, 2020, File No. 001-05324) (B) The Connecticut Light and Power Company 4.1 Indenture of Mortgage and Deed of Trust between CL&P and Bankers Trust Company, Trustee, dated as of May 1, 1921 (Composite including all twenty-four amendments to May 1, 1967) (Exhibit 4.1, Eversource 10-K filed on February 26, 2018 , Fi le No. 000-00404 ) 4.1.1 Series B Supplemental Indenture between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of September 1, 2004 (Exhibit 99.5, CL&P Current Report on Form 8-K filed on September 22, 2004, File No. 000-00404) 4.2 Composite Indenture of Mortgage and Deed of Trust between CL&P and Deutsche Bank Trust Company Americas f/k/a Bankers Trust Company, dated as of May 1, 1921, as amended and supplemented by seventy-three supplemental mortgages to and including Supplemental Mortgage dated as of April 1, 2005 (Exhibit 99.5, CL&P Current Report on Form 8-K filed on April 13, 2005, File No. 000-00404) 4.2.1 Supplemental Indenture (2005 Series B Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of April 1, 2005 (Exhibit 99.2, CL&P Current Report on Form 8-K filed on April 13, 2005, File No. 000-00404) 4.2.2 Supplemental Indenture (2006 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of June 1, 2006 (Exhibit 99.2, CL&P Current Report on Form 8-K filed on June 7, 2006, File No. 000-00404) 4.2.3 Supplemental Indenture (2007 Series B Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of March 1, 2007 (Exhibit 99.2, CL&P Current Report on Form 8-K filed on March 29, 2007, File No. 000-00404) 4.2.4 Supplemental Indenture (2007 Series D Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of September 1, 2007 (Exhibit 4, CL&P Current Report on Form 8-K filed on September 19, 2007, File No. 000-00404) 4.2.5 Supplemental Indenture (2014 Series A Bond) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of April 1, 2014 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on April 29, 2014, File No. 000-00404) 4.2.6 Supplemental Indenture (2015 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of May 1, 2015 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on May 26, 2015, File No. 000-00404) 4.2.7 Supplemental Indenture (2015 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of November 1, 2015 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on December 4, 2015, File No. 000-00404) 4.2.8 Supplemental Indenture (2017 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of March 1, 2017 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on March 16, 2017, File No. 000-00404) 4.2.9 Supplemental Indenture (2014 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of August 1, 2017 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on August 23, 2017, File No. 000-00404) 4.2.10 Supplemental Indenture (2018 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of March 1, 2018 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on April 2, 2018, File No. 000-00404) 4.2.11 Supplemental Indenture (2018 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of March 1, 2019 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on April 4, 2019, File No. 000-00404) E-3 4.2.12 Supplemental Indenture (2017 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of September 1, 2019 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on September 23, 2019, File No. 000-00404) 4.2.13 Supplemental Indenture (2021 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of June 1, 2021 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on July 2, 2021, File No. 000-00404) 4.2.14 Supplemental Indenture (2023 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of January 1, 2023 ( Exhibit 4.1, CL&P Current Report on Form 8-K filed on January 10, 2023, File No. 000-00404 ) 4.2.15 Supplemental Indenture (2023 Series B Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of July 1, 2023 ( Exhibit 4.1, CL&P Current Report on Form 8-K filed on July 6, 2023, File No. 000-00404 ) 4.2.16 Supplemental Indenture (2024 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of January 1, 2024 ( Exhibit 4.1, CL&P Current Report on Form 8-K filed on January 23, 2024, File No. 000-00404 ) 4.2.17 Supplemental Indenture (2024 Series B Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of August 1, 2024 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on August 13, 2024, File No. 000-00404) 4.2.18 Supplemental Indenture (2025 Series A Bonds) between CL&P and Deutsche Bank Trust Company Americas, as Trustee dated as of January 1, 2025 (Exhibit 4.1, CL&P Current Report on Form 8-K filed on January 13, 2025, File No. 000-00404) 4.3 CL&P Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (Exhibit 4.4, Eversource Energy Annual Report on Form 10-K filed on February 27, 2020, File No. 001-05324) (C) NSTAR Electric Company 4.1 Indenture between Boston Edison Company and the Bank of New York (as successor to Bank of Montreal Trust Company) (Exhibit 4.1, 2017 Eversource Energy Annual Report on Form 10-K filed on February 26, 2018 , File No. 001-05324 ) 4.1.1 A Form of 5.75% Debenture Due March 15, 2036 (Exhibit 99.2, Boston Edison Company Current Report on Form 8‑K filed on March 17, 2006, File No. 001-02301) 4.1.2 A Form of 5.50% Debenture Due March 15, 2040 (Exhibit 99.2, NSTAR Electric Company Current Report on Form 8‑K filed on March 15, 2010, File No. 001-02301) 4.1.3 A Form of 4.40% Debenture Due 2044 (Exhibit 4, NSTAR Electric Company Current Report on Form 8-K filed on March 13, 2014, File No. 001-02301) 4.1.4 A Form of 2.70% Debenture due 2026 (Exhibit 4, NSTAR Electric Company Current Report on Form 8-K filed on May, 31, 2016, File No. 001-02301) 4.1.5 Form of 3.20% Debenture due May 15, 2027 (Exhibit 4, NSTAR Electric Company Current Report on Form 8-K filed on May 18, 2017 File No. 001-02301) 4.1.6 Form of 3.25% Debenture due May 15, 2029 (Exhibit 4, NSTAR Electric Company Current Report on Form 8-K filed on May 23, 2019, File No. 001-02301) 4.1.7 Form of 3.95% Debenture due April 1, 2030 (Exhibit 4, NSTAR Electric Company Current Report on Form 8-K filed on March 26, 2020, File No. 001-02301) 4.1.8 Form of 3.10% Debenture due June 1, 2051 (Exhibit 4, NSTAR Electric Company Current Report on Form 8-K filed on June 2, 2021, File No. 001-02301) 4.1.9 Form of 1.95% Debenture due August 15, 2031 (Exhibit 4.1, NSTAR Electric Company Current Report on Form 8-K filed on August 23, 2021, File No. 001-02301) 4.1.10 Form of 4.55% Debenture due June 1, 2052 ( Exhibit 4.1, NSTAR Electric Company Current Report on Form 8-K filed on May 17, 2022, File No. 001-02301 ) E-4 4.1.11 Form of 4.95% Debenture due September 15, 2052 ( Exhibit 4.1, NSTAR Electric Company Current Report on Form 8-K filed on September 15, 2022, File No. 001-02301 ) 4.1.12 Form of 5.60% Debenture due October 1, 2028 ( Exhibit 4.1, NSTAR Electric Company Current Report on Form 8-K filed on September 25, 2023, File No. 001-02301 ) 4.1.13 Form of 5.40% Debenture due 2034 ( Exhibit 4.1, NSTAR Electric Company Current Report on Form 8‑K filed on May 22, 2024, File No. 001-02301) 4.1.14 Form of 4.85% Debenture due 2030 ( Exhibit 4.1, NSTAR Electric Company Current Report on Form 8‑K filed on February 26, 2025 , File No. 001-02301) 4.1.15 Form of 5.20% Debenture due 2035 ( Exhibit 4. 2 , NSTAR Electric Company Current Report on Form 8‑K filed on February 26, 2025, File No. 001-02301) 4.2 Second Amended and Restated Credit Agreement, dated as of October 15, 2021, by and among NSTAR Electric Company and the Banks named therein, pursuant to which Barclays Bank PLC serves as Administrative Agent and Swing Line Lender ( Exhibit 10.13, Eversource Energy Annual Report on Form 10-K filed on February 17, 2022, File No. 001-05324 ) 4.2.1 First Amendment to Second Amended and Restated Credit Agreement and Extension Agreement, dated October 17, 2022, by and between NSTAR Electric Company and the Banks named therein, pursuant to which Barclays Bank PLC serves as Administrative Agent and Swing Line Lender ( Exhibit 4.1, Eversource Energy Quarterly Report on Form 10-Q filed on November 4, 2022, File No. 001-05324 ) 4.2.2 Second Amendment to Second Amended and Restated Credit Agreement, dated October 11, 2024, by and between NSTAR Electric Company and the Banks named therein, pursuant to which Barclays Bank PLC serves as Administrative Agent and Swing Line Lender (Exhibit 4, Eversource Energy Quarter ly R eport on Form 10-Q filed on November 6, 2024, File No. 001-05324 ) 4.3 Indenture between NSTAR Electric Company, as successor to Western Massachusetts Electric Company (WMECO), and The Bank of New York, as Trustee, dated as of September 1, 2003 (Exhibit 99.2, WMECO Current Report on Form 8-K filed on October 8, 2003, File No. 000-07624) 4.3.1 Second Supplemental Indenture between NSTAR Electric Company, as successor to WMECO, and The Bank of New York, as Trustee dated as of September 1, 2004 (Exhibit 4.1, WMECO Current Report on Form 8-K filed on September 27, 2004, File No. 000-07624) 4.3.2 Fourth Supplemental Indenture between NSTAR Electric Company, as successor to WMECO, and The Bank of New York Trust, as Trustee, dated as of August 1, 2007 (Exhibit 4.1, WMECO Current Report on Form 8-K filed on August 20, 2007, File No. 000-07624) 4.3.3 Eighth Supplemental Indenture between NSTAR Electric Company, as successor to WMECO, and The Bank of New York Trust Company, N.A., as Trustee, dated as of June 1, 2016 (Exhibit 4.1, WMECO Current Report on Form 8-K filed on June 29, 2016, File No. 000-07624) 4.4 NSTAR Electric Company Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (Exhibit 4.4, Eversource Energy Annual Report on Form 10-K filed on February 27, 2020, File No. 001-05324) (D) Public Service Company of New Hampshire 4.1 First Mortgage Indenture between PSNH and First Fidelity Bank, National Association, New Jersey, now First Union National Bank, Trustee, dated as of August 15, 1978 (Composite including all amendments effective June 1, 2011) (included as Sc hedule C to the Eighteenth Supplemental Indenture filed as Exhibit 4.1 to PSNH Current Report on Form 8-K filed on June 2, 2011, File No. 001-06392) 4.1.1 Fourteenth Supplemental Indenture between PSNH and Wachovia Bank, National Association successor to First Union National Bank, as successor to First Fidelity Bank, National Association, as Trustee dated as of October 1, 2005 (Exhibit 99.2, PSNH Current Report on Form 8-K filed on October 6, 2005, File No. 001-06392) 4.1.2 Twenty-Second Supplemental Indenture, between PSNH and U.S. Bank National Association, as Trustee dated as of June 1, 2019 (Exhibit 4.1, PSNH Current Report on Form 8-K filed on July 3, 2019 , File No. 001-06392) E-5 4.1.3 Twenty-Third Supplemental Indenture, between PSNH and U.S. Bank National Association, as Trustee dated as of August 1, 2020 (Exhibit 4.1, PSNH Current Report on Form 8-K filed on August 31, 2020 , File No. 001-06392) 4.1.4 Twenty-Fourth Supplemental Indenture, between PSNH and U.S. Bank National Association, as Trustee dated as of June 1, 2021 (Exhibit 4.1, PSNH Current Report on Form 8-K filed on June 21, 2021 , File No. 001-06392) 4.1.5 Twenty-Fifth Supplemental Indenture, between PSNH and U.S. Bank Trust Company, National Association, as Trustee dated as of January 1, 2023 ( Exhibit 4.1, PSNH Current Report on Form 8-K filed on January 11, 2023 , File No. 001-06392 ) 4.1.6 Twenty-Sixth Supplemental Indenture, between PSNH and U.S. Bank Trust Company, National Association, as Trustee dated as of September 1, 2023 ( Exhibit 4.1, PSNH Current Report on Form 8-K filed on September 25, 2023 , File No. 001-06392 ) 4.1.7 Twenty-Seventh Supplemental Indenture, between PSNH and U.S. Bank Trust Company, National Association, as Trustee dated as of April 1, 2024 (Exhibit 4.3, PSNH Current Report on Form 8-K filed on April 1, 2024 , File No. 001-06392) 4.1.8 Twenty-Eighth Supplemental Indenture, between PSNH and U.S. Bank Trust Company, National Association, as Trustee dated as of June 1, 2025 (Exhibit 4. 1 , PSNH Current Report on Form 8-K filed on June 24, 2025 , File No. 001-06392) 4.2 Series A Loan and Trust Agreement among Business Finance Authority of the State of New Hampshire and PSNH and State Street Bank and Trust Company, as Trustee (Tax Exempt Pollution Control Bonds) dated as of October 1, 2001 (Exhibit 4.3. 5 , 2001 Eversource Energy Annual Report on Form 10-K filed on March 22, 2002, File No. 001-05324) (F) Eversource Energy, The Connecticut Light and Power Company and Public Service Company of New Hampshire 4.1 Second Amended and Restated Credit Agreement, dated as of October 15, 2021, by and among Eversource, Aquarion Water Company of Connecticut, NSTAR Gas, CL&P, PSNH, Yankee Gas and EGMA and the Banks named therein, pursuant to which Bank of America, N.A. serves as Administrative Agent and Swing Line Lender ( Exhibit 10.12, Eversource Energy Annual Report on Form 10-K filed on February 17, 2022, File No. 001-05324 ) 4.1.1 First Amendment to Second Amended and Restated Credit Agreement and Extension Agreement, dated October 17, 2022, by and among Eversource, Aquarion Water Company of Connecticut, NSTAR Gas, CL&P, PSNH, Yankee Gas and EGMA and the Banks named therein, pursuant to which Bank of America, N.A. serves as Administrative Agent and Swing Line Lender ( Exhibit 4, Eversource Energy Quarterly Report on Form 10-Q filed on November 4, 2022, File No. 001-05324 ) 4.1.2 Second Amendment to Second Amended and Restated Credit Agreement and Extension Agreement, dated November 29, 2023, by and among Eversource, Aquarion Water Company of Connecticut, NSTAR Gas, CL&P, PSNH, Yankee Gas and EGMA and the Banks named therein, pursuant to which Bank of America, N.A. serves as Administrative Agent and Swing Line Lender ( Exhibit 4.1.2, Eversource Energy Annual Report on Form 10-K filed on February 14, 2024, File No. 001-05324 ) 4.1.3 Third Amendment to Second Amended and Restated Credit Agreement, dated October 11, 2024, by and among Eversource Energy, Aquarion Water Company of Connecticut, NSTAR Gas Company, The Connecticut Light and Power Company, Public Service Company of New Hampshire, Yankee Gas Services Company and Eversource Gas Company of Massachusetts and the Banks named therein, pursuant to which Bank of America, N.A. serves as Administrative Agent and Swing Line Lender ( Exhibit 4, Eversource Energy Quarterly Report on Form 10-Q filed on November 6, 2024 , File No. 001-05324 ) 10. Material Contracts (A) Eversource Energy 10.1 Lease between The Rocky River Realty Company and Eversource Energy Service Company, dated as of July 1, 2008 (Exhibit 10.1, Eversource Energy Annual Report on Form 10-K filed on February 26, 2018 , File No. 001-05324 ) *+10.2 Eversource Energy Board of Trustees’ Compensation Arrangement Summary E-6 +10.3 Eversource Supplemental Executive Retirement Program, as amended to include the Eversource Supplemental Cash Balance Pension Plan, effective January 1, 2025 (Exhibit 10.1, Eversource Energy Current Report on Form 8-K filed on December 6, 2024, File No. 001-05324) +10.4 Eversource Energy Deferred Compensation Plan for Executives effective as of January 1, 2014 (Exhibit 10.6, Eversource Energy Annual Repor t on Form 10-K filed on February 26, 2016, File No. 001-05324) +10.4.1 Amendment No 1 to the Eversource Deferred Compensation Plan effective February 7, 2018 (Exhibit 10 .6.1, Eversource Energy Annual Report on Form 10-K filed on February 27, 2020, File No. 001-05324) +10.5 NSTAR Excess Benefit Plan, effective August 25, 1999 (Exhibit 10.1 , NSTAR Annual Report on Form 10-K/A filed on September 29, 2000, File No. 001-14768) +10.5.1 NSTAR Excess Benefit Plan, incorporating the NSTAR 409A Excess Benefit Plan, as amended and restated effective January 1, 2008, dated December 24, 2008 (Exhibit 10.1.1 , NSTAR Annual Report on Form 10-K filed on February 9, 2009, File No. 001-14768) +10.6 Amended and Restated Change in Control Agreement by and between Joseph R. Nolan, Jr. and NSTAR, dated November 15, 2007 (Exhibit 10.13, NSTAR Annual Report on Form 10-K filed on February 11, 2008, File No. 001-14768) +10.7 Amended and Restated Change in Control Agreement by and between Senior Vice President and NSTAR, dated November 15, 2007 (Exhibit 10.15, NSTAR Annual Report on Form 10-K filed on February 11, 2008, File No. 001-14768) (B) Eversource Energy, The Connecticut Light and Power Company, NSTAR Electric Company and Public Service Company of New Hampshire 10.1 Amended and Restated Form of Service Contract between each of Eversource Energy, CL&P, NSTAR Electric Company and Eversource Energy Service Company dated as of January 1, 2014. (Exhibit 10.1, Eversource Energy Annual Report on Form 10-K filed on February 25, 2014, File No. 001-05324) 10.2 Transmission Operating Agreement between the Initial Participating Transmission Owners, Additional Participating Transmission Owners and ISO New England, Inc. dated as of February 1, 2005 (Exhibit 10.29, Eversource Energy Annual Report on Form 10-K filed on March 17, 2005, File No. 001-05324) 10.2.1 Rate Design and Funds Disbursement Agreement among the Initial Participating Transmission Owners, Additional Participating Transmission Owners and ISO New England, Inc., effective June 30, 2006 (Exhibit 10.22.1, Eversource Energy Annual Report on Form 10-K filed on March 1, 2007, File No. 001-05324) 10.3 Eversource Energy's Third Amended and Restated Tax Allocation Agreement dated as of April 10, 2012, (Exhibit 10.1 , Eversource Energy Quarterly Report on Form 10-Q for Quarter Ended June 30, 2012 filed on August 7, 2012, File No. 001-05324) +10.4 Amended and Restated Incentive Plan Effective January 1, 2009 (Exhibit 10.3, Eversource Energy Quarter ly Report on Form 10-Q for the Quarter Ended September 30, 2008 filed November 10, 2008, File No. 001-05324) +10.5 2018 Eversource Energy Incentive Plan (Exhibit 99.2, Eversource Energy Current Report on Form 8-K dated May 3, 2 0 18, File No. 001-05324 ) 10.5.1 Amendment Number 1 to the 2018 Eversource Incentive Plan, effective May 3, 2023 ( Appendix A to the Eversource Energy Definitive Proxy Statement for the 2023 Eversource Energy Annual Meeting of Shareholders, dated March 24, 2023, File No. 001-05324 ) +10.6 Trust under Supplemental Executive Retirement Plan dated May 2, 1994 (Exhibit 10.33, Eversource Energy Annual Report on Form 10-K filed on March 21, 2003, File No. 001-05324) +10.6.1 First Amendment to Trust Under Supplemental Executive Retirement Plan, effective as of December 10, 2002 (Exhibit 10 (B) 10.19.1, Eversource Energy Annual Report on Form 10-K filed on March 12, 2004, File No. 001-05324) E-7 +10.6.2 Second Amendment to Trust Under Supplemental Executive Retirement Plan, effective as of November 12, 2008 (Exhibit 10.12.2, Eversource Energy Annual Report on Form 10-K filed on February 27, 2009, File No. 001-05324) +10.7 Amended and Restated Employment Agreement with Gregory B. Butler, effective January 1, 2009 (Exhibit 10.7, Eversource Energy Annual Report on Form 10-K filed on February 27, 2009, File No. 001-05324) (C) Eversource Energy, The Connecticut Light and Power Company, Public Service Company of New Hampshire and NSTAR Electric Company 10.1 Eversource Energy Service Company Transmission and Ancillary Service Wholesale Revenue Allocation Methodology among The Connecticut Light and Power Company, NSTAR Electric Company, Public Service Company of New Hampshire, Holyoke Water Power Company and Holyoke Power and Electric Company Trustee dated as of January 1, 2008 (Exhibit 10.1, Eversource Energy Quarterly Report on Form 10-Q for the Quarter Ended March 31, 2008 filed on May 9, 2008, File No. 001-05324) *19. Insider Trading Policy *21. Subsidiaries of the Registrant *23. Consents of Independent Registered Public Accounting Firm *31. Rule 13a - 14(a)/15 d - 14(a) Certifications (A) Eversource Energy 31 Certification by the Chairman of the Board, President and Chief Executive Officer of Eversource Energy pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.1 Certification by the Chief Financial Officer of Eversource Energy pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (B) The Connecticut Light and Power Company 31 Certification by the Chairman and Chief Executive Officer of CL&P pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.1 Certification by the Chief Financial Officer of CL&P pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (C) NSTAR Electric Company 31 Certification by the Chairman of NSTAR Electric Company pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.1 Certification by the Chief Financial Officer of NSTAR Electric Company pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (D) Public Service Company of New Hampshire 31 Certification by the Chairman of PSNH pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.1 Certification by the Chief Financial Officer of PSNH pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 *32 18 U.S.C. Section 1350 Certifications (A) Eversource Energy 32 Certification by the Chairman of the Board, President and Chief Executive Officer and the Chief Financial Officer of Eversource Energy pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (B) The Connecticut Light and Power Company 32 Certification by the Chairman and Chief Executive Officer and the Chief Financial Officer of CL&P pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 E-8 (C) NSTAR Electric Company 32 Certification by the Chairman and the Chief Financial Officer of NSTAR Electric Company pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (D) Public Service Company of New Hampshire 32 Certification by the Chairman and the Chief Financial Officer of PSNH pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 *97 Clawback Policy *101.INS Inline XBRL Instance Document - the instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document *101.SCH Inline XBRL Taxonomy Extension Schema *101.CAL Inline XBRL Taxonomy Extension Calculation *101.DEF Inline XBRL Taxonomy Extension Definition *101.LAB Inline XBRL Taxonomy Extension Labels *101.PRE Inline XBRL Taxonomy Extension Presentation *104 The cover page from the Annual Report on Form 10-K for the year ended December 31, 2025, formatted in Inline XBRL E-9 EVERSOURCE ENERGY SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. EVERSOURCE ENERGY February 17, 2026 By: /s/ Jay S. Buth Jay S. Buth Vice President, Controller and Chief Accounting Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. POWER OF ATTORNEY Each person whose signature appears below constitutes and appoints Gregory B. Butler, John M. Moreira and Jay S. Buth and each of them, his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Signature Title Date /s/ Joseph R. Nolan, Jr. Chairman of the Board, President and February 17, 2026 Joseph R. Nolan, Jr. Chief Executive Officer (Principal Executive Officer) /s/ John M. Moreira Executive Vice President, Chief Financial Officer February 17, 2026 John M. Moreira and Treasurer (Principal Financial Officer) /s/ Jay S. Buth Vice President, Controller February 17, 2026 Jay S. Buth and Chief Accounting Officer /s/ Cotton M. Cleveland Trustee February 17, 2026 Cotton M. Cleveland /s/ Linda Dorcena Forry Trustee February 17, 2026 Linda Dorcena Forry /s/ Gregory M. Jones Trustee February 17, 2026 Gregory M. Jones /s/ Loretta D. Keane Trustee February 17, 2026 Loretta D. Keane E-10 Signature Title Date /s/ John Y. Kim Trustee February 17, 2026 John Y. Kim /s/ David H. Long Trustee February 17, 2026 David H. Long /s/ W. Robert Mudge Trustee February 17, 2026 W. Robert Mudge /s/ Daniel J. Nova Trustee February 17, 2026 Daniel J. Nova /s/ Frederica M. Williams Trustee February 17, 2026 Frederica M. Williams E-11 THE CONNECTICUT LIGHT AND POWER COMPANY SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. THE CONNECTICUT LIGHT AND POWER COMPANY February 17, 2026 By: /s/ Jay S. Buth Jay S. Buth Vice President, Controller and Chief Accounting Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. POWER OF ATTORNEY Each person whose signature appears below constitutes and appoints Gregory B. Butler, John M. Moreira and Jay S. Buth and each of them, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Signature Title Date /s/ Paul Chodak III Chairman and Chief Executive Officer February 17, 2026 Paul Chodak III and a Director (Principal Executive Officer) /s/ John M. Moreira Executive Vice President, Chief Financial Officer February 17, 2026 John M. Moreira and Treasurer and a Director (Principal Financial Officer) /s/ Gregory B. Butler Executive Vice President and General Counsel February 17, 2026 Gregory B. Butler and a Director /s/ Jay S. Buth Vice President, Controller February 17, 2026 Jay S. Buth and Chief Accounting Officer /s/ Penelope M. Conner Director February 17, 2026 Penelope M. Conner /s/ Chandler J. Howard Director February 17, 2026 Chandler J. Howard /s/ Patrick J. McGrath Director February 17, 2026 Patrick J. McGrath /s/ Ian G. Nicholson Director February 17, 2026 Ian G. Nicholson E-12 NSTAR ELECTRIC COMPANY SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. NSTAR ELECTRIC COMPANY February 17, 2026 By: /s/ Jay S. Buth Jay S. Buth Vice President, Controller and Chief Accounting Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. POWER OF ATTORNEY Each person whose signature appears below constitutes and appoints Gregory B. Butler, John M. Moreira and Jay S. Buth and each of them, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Signature Title Date /s/ Joseph R. Nolan, Jr. Chairman and a Director February 17, 2026 Joseph R. Nolan, Jr. (Principal Executive Officer) /s/ Paul Chodak III Chief Executive Officer and a Director February 17, 2026 Paul Chodak III /s/ John M. Moreira Executive Vice President, Chief Financial Officer February 17, 2026 John M. Moreira and Treasurer and a Director (Principal Financial Officer) /s/ Gregory B. Butler Executive Vice President and General Counsel February 17, 2026 Gregory B. Butler and a Director /s/ Jay S. Buth Vice President, Controller February 17, 2026 Jay S. Buth and Chief Accounting Officer E-13 PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE February 17, 2026 By: /s/ Jay S. Buth Jay S. Buth Vice President, Controller and Chief Accounting Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. POWER OF ATTORNEY Each person whose signature appears below constitutes and appoints Gregory B. Butler, John M. Moreira and Jay S. Buth and each of them, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Signature Title Date /s/ Joseph R. Nolan, Jr. Chairman and a Director February 17, 2026 Joseph R. Nolan, Jr. (Principal Executive Officer) /s/ Paul Chodak III Chief Executive Officer and a Director February 17, 2026 Paul Chodak III /s/ John M. Moreira Executive Vice President, Chief Financial Officer February 17, 2026 John M. Moreira and Treasurer and a Director (Principal Financial Officer) /s/ Gregory B. Butler Executive Vice President and General Counsel February 17, 2026 Gregory B. Butler and a Director /s/ Jay S. Buth Vice President, Controller February 17, 2026 Jay S. Buth and Chief Accounting Officer E-14