# EDGAR Filing Document

**Accession Number:** 0000315256
**File Stem:** 0001104659-25-062090
**Filing Date:** 2025-6
**Character Count:** 200754
**Document Hash:** 34f3d17f5dbd0817ffcdb00fa3be11b3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-062090.hdr.sgml**: 20250624

**ACCESSION NUMBER**: 0001104659-25-062090

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 19

**CONFORMED PERIOD OF REPORT**: 20250624

**ITEM INFORMATION**: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250624

**DATE AS OF CHANGE**: 20250624

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PUBLIC SERVICE CO OF NEW HAMPSHIRE
- **CENTRAL INDEX KEY:** 0000315256
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 020181050
- **STATE OF INCORPORATION:** NH
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-06392
- **FILM NUMBER:** 251068965

**BUSINESS ADDRESS:**
- **STREET 1:** 780 N. COMMERCIAL STREET
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03105-0330
- **BUSINESS PHONE:** 6036694000

**MAIL ADDRESS:**
- **STREET 1:** 780 N. COMMERCIAL STREET
- **CITY:** MANCHESTER
- **STATE:** NH
- **ZIP:** 03105-0330

?xml version='1.0' encoding='ASCII'?

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): **June 24, 2025**

**PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**New Hampshire** | &nbsp;&nbsp;**001-06392** | &nbsp;&nbsp;**02-0181050** |
| &nbsp;&nbsp; (State or other jurisdiction<br> of incorporation) | &nbsp;&nbsp;(Commission <br> File Number) | &nbsp;&nbsp;(I.R.S. Employer<br> Identification No.) |

---

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| | |
|:---|:---|
| &nbsp;&nbsp; **Energy Park**<br> **780 North Commercial Street**<br> **Manchester, New Hampshire** | &nbsp;&nbsp; <br>**03101-1134** |
| &nbsp;&nbsp;(Address of principal executive offices) | &nbsp;&nbsp;(Zip Code) |

---

Registrant's telephone number, including area code: (800) 286-5000

**Not Applicable**

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

◻ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

◻ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

◻ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

◻ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**<u>Title of each class</u>** | &nbsp;&nbsp;**<u>Trading Symbol(s)</u>** | &nbsp;&nbsp;**<u>Name of each exchange on which registered</u>** |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

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| | |
|:---|:---|
| **Section 2** | **Financial Information** |

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| | |
|:---|:---|
| **Item 2.03** | **Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.** |

---

On June 24, 2025, Public Service Company of New Hampshire, doing business as Eversource Energy (the "Company"), issued $300,000,000 aggregate principal amount of its 4.40% First Mortgage Bonds, Series Y, Due 2028 (the "Bonds"), pursuant to an Underwriting Agreement, dated June 16, 2025, among BofA Securities, Inc., Morgan Stanley & Co. LLC, and TD Securities (USA) LLC, as representatives of the underwriters named therein, and the Company (the "Underwriting Agreement").

The Bonds were issued under a Twenty-Eighth Supplemental Indenture, dated as of June 1, 2025, between the Company and U.S. Bank Trust Company, National Association, as Trustee, supplementing the First Mortgage Indenture, dated as of August 15, 1978, as supplemented, amended and restated effective as of June 1, 2011, between the Company and U.S. Bank Trust Company, National Association, as Trustee.

---

| | |
|:---|:---|
| **Section 9** | **Financial Statements and Exhibits** |

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| | |
|:---|:---|
| **Item 9.01** | **Financial Statements and Exhibits.** |

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(d) Exhibits.

---

| | |
|:---|:---|
| **Exhibit <br> Number** | **Description** |
| [1.1](tm2518668d1_ex1-1.htm) | [Underwriting Agreement dated June 16, 2025, between Public Service Company of New Hampshire, doing business as Eversource Energy, and BofA Securities, Inc., Morgan Stanley & Co. LLC, and TD Securities (USA) LLC, as representatives of the several Underwriters named therein.](tm2518668d1_ex1-1.htm) |
| [4.1](tm2518668d1_ex4-1.htm) | [Twenty-Eighth Supplemental Indenture, dated as of June 1, 2025, between the Company and U.S. Bank Trust Company, National Association, as Trustee.](tm2518668d1_ex4-1.htm) |
| [4.2](tm2518668d1_ex4-2.htm) | [Form of 4.40% First Mortgage Bonds, Series Y, Due 2028 (included as Schedule A to the Twenty-Eighth Supplemental Indenture filed herewith as Exhibit 4.1).](tm2518668d1_ex4-2.htm) |
| [5.1](tm2518668d1_ex5-1.htm) | [Legal opinion of Ropes & Gray LLP relating to the validity of the Bonds.](tm2518668d1_ex5-1.htm) |
| [5.2](tm2518668d1_ex5-2.htm) | [Legal opinion of Erik Newman, Esq. relating to the validity of the Bonds.](tm2518668d1_ex5-2.htm) |
| [23.1](tm2518668d1_ex5-1.htm) | [Consent of Ropes & Gray LLP (included in Exhibit 5.1).](tm2518668d1_ex5-1.htm) |
| [23.2](tm2518668d1_ex5-2.htm) | [Consent of Erik Newman, Esq. (included in Exhibit 5.2).](tm2518668d1_ex5-2.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

---

**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 hereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE** | **PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE** |
|  | (Registrant) | (Registrant) |
| June 24, 2025 | By: | /s/ Emilie G. O'Neil |
|  |  | Emilie G. O'Neil |
|  |  | Assistant Treasurer-Corporate Finance and Cash Management |

---

## Exhibit 1.1

**Exhibit 1.1**

**PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE**

**DOING BUSINESS AS EVERSOURCE ENERGY**

**FIRST MORTGAGE BONDS**

**UNDERWRITING AGREEMENT**

June 16, 2025

BofA Securities, Inc.

One Bryant Park

New York, New York 10036

Morgan Stanley & Co. LLC

1585 Broadway, 29th Floor

New York, New York 10036

TD Securities (USA) LLC

1 Vanderbilt Avenue, 11<sup>th</sup> Floor

New York, New York 10017

As Representatives of the several Underwriters<br> named in Schedule I hereto<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. *Purchase and Sale.* On the basis of the representations and warranties, and subject to the terms and conditions set forth in this agreement (this "**Agreement**"), the Underwriters (defined below) shall purchase from Public Service Company of New Hampshire, a New Hampshire corporation doing business as Eversource Energy (the "**Company**"), severally and not jointly, and the Company shall sell to the Underwriters, the principal amount of the Company's 4.40% First Mortgage Bonds, Series Y, due 2028 set forth opposite each name of the Underwriters in Schedule I hereto at the price specified in Schedule III hereto (the aggregate principal amount of the bonds described in Schedule I hereto are hereinafter referred to as the "**Bonds**").

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. *Underwriters.* The term "**Underwriters**", as used herein, shall be deemed to mean BofA Securities, Inc., Morgan Stanley & Co. LLC, and TD Securities (USA) LLC (the "**Representatives**") and the other several persons, firms or corporations named in Schedule I hereto (including all substituted Underwriters under the provisions of Section 10 hereof). All obligations of the Underwriters hereunder are several and not joint.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. *Representations and Warranties of the Company and the Underwriters*.

(a) The Company represents and warrants to and agrees with the Underwriters that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) A registration statement on Form S-3 (File No. 333-286362-02), relating to the Bonds (x) has been prepared by the Company in conformity with the requirements of the Securities Act of 1933, as amended (the "**Securities Act**"), and the rules and regulations (the "**Rules and Regulations**") of the Securities and Exchange Commission (the "**Commission**") thereunder; (y) has been filed with the Commission under the Securities Act; and (z) is effective under the Securities Act. Copies of such registration statement and any amendment thereto have been delivered by the Company to the Representatives. As used in this Agreement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A) "**Applicable Time**" means 2:50 p.m. (New York City time) on the date of this Agreement;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B) "**Effective Date**" means any date as of which any part of such registration statement relating to the Bonds became, or is deemed to have become, effective under the Securities Act in accordance with Rule 430B of the Rules and Regulations;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(C) "**Issuer Free Writing Prospectus**" means each "free writing prospectus" (as defined in Rule 405 of the Rules and Regulations) prepared by or on behalf of the Company and approved by the Company or used or referred to by the Company in connection with the offering of the Bonds;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(D) "**Preliminary Prospectus**" means the prospectus relating to the Bonds included in the Registration Statement, including any preliminary prospectus supplement thereto relating to the Bonds, as filed with the Commission pursuant to Rule 424(b) of the Rules and Regulations;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(E) "**Pricing Disclosure Package**" means, as of the Applicable Time, the most recent Preliminary Prospectus, together with each Issuer Free Writing Prospectus listed on Schedule II hereto;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(F) "**Prospectus**" means the final prospectus relating to the Bonds included in the Registration Statement, including any prospectus supplement thereto relating to the Bonds, as filed with the Commission pursuant to Rule 424(b) of the Rules and Regulations; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(G) "**Registration Statement**" means, collectively, the various parts of such registration statement, each as amended as of the Effective Date for such part, including any Preliminary Prospectus or the Prospectus and all exhibits to such registration statement.

Any reference to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents incorporated by reference therein pursuant to Form S-3 under the Securities Act as of the date of such Preliminary Prospectus or the Prospectus, as the case may be. Any reference to the "**most recent Preliminary Prospectus**" shall be deemed to refer to the latest Preliminary Prospectus included in the Registration Statement or filed pursuant to Rule 424(b) of the Rules and Regulations on or prior to the date hereof. Any reference to any amendment or supplement to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any document filed under the Securities Exchange Act of 1934, as amended (the "**Exchange Act**"), after the date of such Preliminary Prospectus or the Prospectus, as the case may be, and incorporated by reference in such Preliminary Prospectus or the Prospectus, as the case may be; and any reference to any amendment to the Registration Statement shall be deemed to include any Annual Report on Form 10-K of the Company filed with the Commission pursuant to Section 13(a) or 15(d) of the Exchange Act after the Effective Date that is incorporated by reference in the Registration Statement. The Commission has not issued any order preventing or suspending the use of any Preliminary Prospectus or the Prospectus or suspending the effectiveness of the Registration Statement, and no proceeding or examination for such purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering has been instituted or threatened by the Commission.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) The Company was at the time of initial filing of the Registration Statement, has been at all relevant determination dates thereafter (as provided in clause (2) of the definition of "well-known seasoned issuer" in Rule 405 of the Rules and Regulations), is on the date hereof and will be on the Closing Date (as defined below) a "well-known seasoned issuer" (as defined in such Rule 405), including not having been an "ineligible issuer" (as defined in such Rule 405) at any such time or date. The Registration Statement is an "automatic shelf registration statement" (as defined in such Rule 405), was filed not earlier than the date that is three years prior to the Closing Date and the Company has not received from the Commission any notice pursuant to Rule 401(g)(2) of the Rules and Regulations objecting to use of the automatic shelf registration statement form and the Company has not otherwise ceased to be eligible to use the automatic shelf registration statement form.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) The Registration Statement conformed and will conform in all material respects on the Effective Date and on the Closing Date, and any amendment to the Registration Statement filed after the date hereof will conform in all material respects when filed, to the requirements of the Securities Act and the Rules and Regulations. The Preliminary Prospectus conformed, and the Prospectus will conform, in all material respects when filed with the Commission pursuant to Rule 424(b) of the Rules and Regulations and on the Closing Date to the requirements of the Securities Act and the Rules and Regulations. The documents incorporated by reference in any Preliminary Prospectus or the Prospectus conformed, and any further documents so incorporated will conform, when filed with the Commission, in all material respects to the requirements of the Exchange Act or the Securities Act, as applicable, and the rules and regulations of the Commission thereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) The Registration Statement did not, as of the Effective Date, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading; *provided* that no representation or warranty is made as to information contained in or omitted from the Registration Statement in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for inclusion therein, which information is specified in Section 8(g) hereof, except that the representations and warranties set forth in this paragraph do not apply to that part of the Registration Statement that constitutes the Statement of Eligibility and Qualification on Form T-1 under the Trust Indenture Act of 1939, as amended (the "**Trust Indenture Act**"), of U.S. Bank Trust Company, National Association (the "**Trustee**").

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(v) The Prospectus will not, as of its date and on the Closing Date, contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; *provided* that no representation or warranty is made as to information contained in or omitted from the Prospectus in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for inclusion therein, which information is specified in Section 8(g) hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(vi) The documents incorporated by reference in any Preliminary Prospectus or the Prospectus did not, and any further documents filed and incorporated by reference therein will not, when filed with the Commission, contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(vii) The Pricing Disclosure Package did not, as of the Applicable Time, contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; *provided* that no representation or warranty is made as to information contained in or omitted from the Pricing Disclosure Package in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for inclusion therein, which information is specified in Section 8(g) hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(viii) Each Issuer Free Writing Prospectus conformed or will conform in all material respects to the requirements of the Securities Act and the Rules and Regulations on the date of first use, and the Company has complied with any filing requirements applicable to such Issuer Free Writing Prospectus pursuant to the Rules and Regulations. Except for each Issuer Free Writing Prospectus listed on Schedule II hereto (the use of which has been consented to by the Representatives), the Company has not made any offer relating to the Bonds that would constitute an Issuer Free Writing Prospectus without the prior written consent of the Representatives. The Company has retained in accordance with the Rules and Regulations all Issuer Free Writing Prospectuses that were not required to be filed pursuant to the Rules and Regulations. Schedule II hereto includes a complete list of all Issuer Free Writing Prospectuses used in connection with the offering of the Bonds.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ix) The Company has been duly formed, is validly existing as a New Hampshire corporation in good standing under the laws of the State of New Hampshire, has the power and authority to own its property and to conduct its business as described in the Pricing Disclosure Package and the Prospectus and is duly qualified to transact business and is in good standing in each jurisdiction in which the conduct of its business or its ownership or leasing of property requires such qualification, except to the extent that the failure to be so qualified or be in good standing would not have a material adverse effect on the Company. The Company possesses such material certificates, authorizations, franchises or permits issued by the appropriate state or federal regulatory authorities or bodies as are necessary to conduct its business as currently conducted.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(x) The Company has no subsidiaries other than Properties, Inc. and PSNH Funding LLC 3. Properties, Inc. and PSNH Funding LLC 3 have been duly formed, are validly existing and in good standing under the laws of the their respective jurisdiction of formation, have the power and authority to own their property and to conduct their business as described in the Pricing Disclosure Package and the Prospectus, are duly qualified to transact business and are in good standing in each jurisdiction in which the conduct of their business or their ownership or leasing of property requires such qualification, except to the extent that the failure to be so qualified or be in good standing would not have a material adverse effect on the Company, and possess such material certificates, authorizations, franchises or permits issued by the appropriate state or federal regulatory authorities or bodies as are necessary to conduct its business as currently conducted.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xi) The Company has all requisite corporate power and authority to execute, deliver and perform its obligations under this Agreement. This Agreement has been duly and validly authorized, executed and delivered by the Company, and is a valid and binding agreement of the Company, enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency or similar laws affecting creditors' rights generally and general principles of equity.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xii) The Indenture dated as of August 15, 1978, as amended, between the Company and the Trustee (as supplemented and previously amended by various supplemental indentures and as to be supplemented by the Twenty-Eighth Supplemental Indenture, dated as of June 1, 2025, establishing the terms of the Bonds, the "**Indenture**"), has been duly qualified under the Trust Indenture Act and has been duly authorized, executed and delivered by the Company and is a valid and binding agreement of the Company, enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency or similar laws affecting creditors' rights generally and general principles of equity.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xiii) The Bonds have been duly authorized and, when executed and authenticated in accordance with the provisions of the Indenture and delivered to and paid for by the Underwriters in accordance with the terms of this Agreement, will be entitled to the benefits and security of the Indenture, equally and ratably with the first mortgage bonds of other series presently secured by the Indenture, and will be valid and binding obligations of the Company, in each case enforceable in accordance with their respective terms, subject to applicable bankruptcy, insolvency or similar laws affecting creditors' rights generally and general principles of equity.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xiv) The execution and delivery by the Company of, and the performance by the Company of its obligations under, this Agreement, the Indenture and the Bonds will not contravene any provision of applicable law, rule or regulation or the Articles of Incorporation or By-Laws of the Company or any agreement or other instrument binding upon the Company or any of its subsidiaries or any of their respective properties that is material to the Company and its subsidiaries, taken as a whole, or any judgment, order or decree of any governmental body, agency or court having jurisdiction over the Company or any of its subsidiaries or any of their respective properties, and no consent, approval, authorization or order of, or qualification with, any governmental body or agency is required for the performance by the Company of its obligations under this Agreement, the Indenture or the Bonds, except for (A) Order No. 28,151 of the New Hampshire Public Utilities Commission (the "**NHPUC**") dated May 27, 2025 (the "**NHPUC Order**"), (B) the Order issued by the Vermont Public Utility Commission in Case No. 25-0432-PET, dated May 29, 2025 (the "**VPUC Order**"), (C) the Order issued by the Maine Public Utilities Commission in Docket No. 98-182 on March 31, 1998 (the "**MPUC Order**"), (D) such as have been obtained under the Securities Act and the Trust Indenture Act, and (E) such as may be required by the securities or Blue Sky laws of the various states in connection with the offer and sale of the Bonds. The NHPUC Order, the MPUC Order and the VPUC Order are in full force and effect and are sufficient to authorize the Company to issue the Bonds and to perform its obligations under the Bonds, the Indenture and this Agreement and are final and not subject to rehearing or appeal (with the exception of the NHPUC Order, for which the period for seeking any rehearing will expire on July 15, 2025, and the VPUC Order, for which the period to appeal will expire on June 28, 2025).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xv) There has not occurred any material adverse change, or any development involving a prospective material adverse change, in the condition, financial or otherwise, or in the earnings, business or operations of the Company and its subsidiaries, taken as a whole, from that set forth in the Pricing Disclosure Package.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xvi) There are no legal or governmental proceedings pending, threatened or contemplated to which the Company or any of its subsidiaries is a party or to which any of the properties of the Company or any of its subsidiaries is subject that are required to be described in the Registration Statement or the Pricing Disclosure Package and are not so described or any statutes, regulations, contracts or other documents that are required to be described in the Registration Statement or the Pricing Disclosure Package or to be filed or incorporated by reference as exhibits to the Registration Statement that are not described, filed or incorporated as required.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xvii) Each Preliminary Prospectus filed as part of the registration statement as originally filed or as part of any amendment thereto, or filed pursuant to Rule 424 of the Rules and Regulations, complied when so filed in all material respects with the Securities Act and the Rules and Regulations.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xviii) The Company is not and, after giving effect to the offering and sale of the Bonds and the application of the proceeds thereof as described in the Pricing Disclosure Package and the Prospectus, will not be an "investment company" as such term is defined in the Investment Company Act of 1940, as amended.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xix) Except as disclosed in the Pricing Disclosure Package and the Prospectus, the Company and each of its subsidiaries (A) is in compliance with any and all applicable foreign, federal, state and local laws and regulations relating to the protection of human health and safety, the environment or hazardous or toxic substances or wastes, pollutants or contaminants ("**Environmental Laws**") (including, without limitation, any capital or operating expenditures required for clean-up, closure of properties or compliance with Environmental Laws or any permit, license or approval, any related constraints on operating activities and any potential liabilities to third parties), (B) has received all permits, licenses or other approvals required of it under applicable Environmental Laws to conduct its business and (C) is in compliance with all terms and conditions of any such permit, license or approval, except where such noncompliance with Environmental Laws, failure to receive required permits, licenses or other approvals or failure to comply with the terms and conditions of such permits, licenses or approvals would not, singly or in the aggregate, have a material adverse effect on the Company and its subsidiaries, taken as a whole.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xx) As of the date of the Company's most recent certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (the "**Sarbanes-Oxley Act**"), the Company maintains systems of internal accounting controls and processes sufficient to provide reasonable assurance that (a) transactions are executed in accordance with management's general or specific authorizations; (b) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles; and (c) assets are safeguarded from loss or unauthorized use. The Company evaluated the design and operation of its disclosure controls and procedures to determine whether they are effective in ensuring that the disclosure of required information is timely made in accordance with the Exchange Act and the rules and forms of the Commission. These evaluations were made under the supervision and with the participation of management, including the principal executive officer and principal financial officer of the Company, within the 45-day period prior to the filing of the most recent Quarterly Report on Form 10-Q. The principal executive officer and principal financial officer have concluded, based on their review, that the disclosure controls and procedures, as defined by Rules 13a-15(e) and 15d-15(e) under the Exchange Act, are effective to ensure that information required to be disclosed by the Company in reports that it files under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in Commission rules and forms. No significant changes were made to the Company's internal controls or other factors that could significantly affect these controls subsequent to the date of their evaluation. The Company is not aware of any material weakness in its internal controls over financial reporting.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxi) The financial statements and the related notes thereto incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus comply in all material respects with the applicable requirements of the Securities Act and the Exchange Act, as applicable, and present fairly the financial position of the Company and its subsidiaries as of the dates indicated and the results of their operations and the changes in their cash flows for the periods specified; such financial statements have been prepared in conformity with generally accepted accounting principles applied on a consistent basis throughout the periods covered thereby, and the supporting schedules included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus present fairly the information required to be stated therein. The other financial information included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus has been derived from the accounting records of the Company and its subsidiaries and presents fairly the information shown thereby. No other financial statements or schedules of any other person are required by the Securities Act or the Exchange Act to be included in or incorporated by reference in the Registration Statement, the Pricing Disclosure Package, or the Prospectus. The interactive data in eXtensible Business Reporting Language incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus fairly presents the information called for in all material respects and has been prepared in accordance with the Commission's rules and guidelines applicable thereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxii) Deloitte and Touche LLP, who have audited certain financial statements of the Company and its subsidiaries included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus, are independent registered public accountants with respect to the Company and its subsidiaries as required by the Securities Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxiii) The Indenture constitutes a direct and valid first mortgage lien, subject only to liens permitted by the Indenture (including "permitted liens" as defined in the Indenture) on that portion of the Trust Estate (as defined below) located in the State of New Hampshire, the State of Maine, or the State of Vermont and under existing New Hampshire, Maine and Vermont law, as applicable, will, subject only to such liens permitted by the Indenture and subject to the provisions of the Federal Bankruptcy Code with respect to liens on property purporting to attach after the date of the commencement of proceedings thereunder, constitute a similar lien at the time of acquisition on all similar properties and assets of the Company acquired after the date hereof located within the State of New Hampshire, the State of Maine or the State of Vermont and required by the Indenture to be subjected to the lien thereof, except real property in Maine or Vermont acquired after the date hereof until the filing of a supplemental indenture specifically subjecting such real property to such lien, and other than the properties and assets of the character excluded or excepted from the lien thereof (it being understood, however, that (i) under certain limited circumstances, the lien of the Indenture on real property in New Hampshire and personal property located thereon could be subordinated to a lien in favor of the State of New Hampshire pursuant to New Hampshire Revised Statutes Annotated 147-b:10-b, as amended, for expenses incurred in containing or removing hazardous waste or materials, and any necessary mitigation of damages with respect to hazardous waste or materials and (ii) under certain limited circumstances the lien of the Indenture on real property in Maine could be subordinated to a lien in favor of the State of Maine pursuant to Maine Revised Statutes Annotated, Title 38, Section 1371 providing for such a lien for costs of abatement, cleanup or mitigation of hazardous substances).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxiv) The Company has not distributed and, prior to the later to occur of the Closing Date and completion of the distribution of the Bonds, will not distribute any offering material in connection with the offering and sale of the Bonds other than the Registration Statement, any Preliminary Prospectus, the Prospectus and each Issuer Free Writing Prospectus set forth on Schedule II hereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxv) The property specifically described as the trust estate in the Indenture (the "**Trust Estate**") located in the States of New Hampshire, Maine and Vermont constitutes all of the utility franchises held by the Company and all of the Company's principal real property and substantially all of the personal property used by the Company in its business, in all cases other than the exceptions explicitly stated in the Indenture.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxvi) Neither the Company, nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries (a) is, or is controlled or 50% or more owned by or is acting on behalf of, an individual or entity that is currently the subject of any sanctions administered or enforced by the United States (including any administered or enforced by the Office of Foreign Assets Control of the U.S. Department of the Treasury (OFAC), the U.S. Department of State or the Bureau of Industry and Security of the U.S. Department of Commerce), the United Nations Security Council, the European Union, the United Kingdom (including sanctions administered or enforced by His Majesty's Treasury) or other relevant sanctions authority (collectively, "**Sanctions**"), (b) is located, organized or resident in a country or territory that is, or whose government is, the subject of Sanctions that broadly prohibit dealings with that country or territory, including, without limitation, Cuba, Iran, North Korea, Russia, Syria, the Crimea Region of Ukraine, the so-called Donetsk People's Republic, the so-called Luhansk People's Republic, the non-government controlled areas of the Kherson and Zaporizhzhia Regions of Ukraine, or any other Covered Region of Ukraine identified pursuant to Executive Order 14065 or (c) will, directly or indirectly, use the proceeds of this offering, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other individual or entity in any manner that would result in a violation of any Sanctions by, or could result in the imposition of Sanctions against, any individual or entity (including any individual or entity participating in the offering, whether as underwriter, advisor, investor or otherwise).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxvii) Neither the Company nor any of its subsidiaries (a) is under investigation by any governmental body for, or has been charged with, or convicted of, money laundering, drug trafficking, terrorist-related activities or other money laundering predicate crimes under any applicable law (collectively, "**Anti-Money Laundering Laws**"), (b) has been assessed civil penalties under any Anti-Money Laundering Laws or (c) has had any of its funds seized or forfeited in an action under any Anti-Money Laundering Laws. The Company and its subsidiaries have taken reasonable measures appropriate to the circumstances (in any event as required by applicable law), to ensure that each of them is and will continue to be in compliance with all applicable current and future Anti-Money Laundering Laws.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxviii) Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee, affiliate or other person acting on behalf of the Company or any of its subsidiaries is aware of or has taken any action, directly or indirectly, that could result in a violation or a sanction for violation by such persons of the Foreign Corrupt Practices Act of 1977 or the U.K. Bribery Act 2010, each as may be amended, or similar law of any other relevant jurisdiction, or the rules or regulations thereunder; and the Company and its subsidiaries have instituted and maintain policies and procedures to ensure compliance therewith. No part of the proceeds of the offering of the Bonds hereunder will be used, directly or indirectly, in violation of the Foreign Corrupt Practices Act of 1977 or the U.K. Bribery Act 2010, each as may be amended, or any similar law of any other relevant jurisdiction, or the rules or regulations thereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(xxix) (a) Except as disclosed in the Registration Statement, the Pricing Disclosure Package and the Prospectus, (1) there has been no security breach or other compromise of or relating to any of the Company's or any of its subsidiaries' information technology and computer systems, networks, hardware, software, data (including to the knowledge of the Company and its subsidiaries after due inquiry, the data in the possession of the Company or its subsidiaries related to their respective customers, employees, suppliers and vendors), equipment or technology (collectively, "**IT Systems and Data**"), (2) neither the Company nor any of its subsidiaries has been notified of, or has any knowledge of, any event or condition that would reasonably be expected to result in any security breach or other compromise to its IT Systems and Data and (3) the Company and its subsidiaries are in compliance in all material respects with all applicable statutes, governmental regulations and standards, contractual obligations and internal policies relating to the security of IT Systems and Data and to the protection of IT Systems and Data from unauthorized use, access, misappropriation or modification, except as would not, in the case of clause (1) or (2) above, individually or in the aggregate, have a material adverse effect on the Company and its subsidiaries, taken as a whole; and (b) the Company and its subsidiaries have implemented backup and disaster recovery technology consistent in all material respects with general industry standards and practices.

Any certificate signed by any officer of the Company and delivered to the Representatives or counsel for the Underwriters in connection with the offering of the Bonds shall be deemed a representation and warranty by the Company, as to matters covered thereby, to each Underwriter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Each Underwriter hereby agrees that, except for one or more term sheets containing the information set forth in Exhibit A to Schedule II hereto, it will not use, authorize use of, refer to, or participate in the use of, any "free writing prospectus", as defined in Rule 405 of the Rules and Regulations (which term includes use of any written information furnished to the Commission by the Company and not incorporated by reference in the Registration Statement and any press release issued by the Company) other than (i) one or more term sheets relating to the Bonds which are not Issuer Free Writing Prospectuses and which contain preliminary terms of the Bonds and related customary information, (ii) a free writing prospectus that is not required to be filed with the Commission, (iii) a free writing prospectus that contains no "issuer information" (as defined in Rule 433(h)(2) of the Rules and Regulations) that was not included (including through incorporation by reference) in any Preliminary Prospectus or a previously filed Issuer Free Writing Prospectus, (iv) any Issuer Free Writing Prospectus prepared pursuant to Section 7(c) hereof, or (v) any free writing prospectus prepared by such Underwriter and approved by the Company in advance in writing.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. *Terms of Public Offering.* The Company is advised by the Underwriters that they have made a public offering of the Bonds on the date of this Agreement. The terms of the public offering of the Bonds are set forth in the Pricing Disclosure Package.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. *Payment and Delivery.* Except as otherwise provided in this Section 5, payment for the Bonds shall be made to the Company in Federal or other funds immediately available at the time (the "**Closing Date**") and place set forth in Schedule III hereto, upon delivery to the Representatives of the Bonds, in fully registered global form registered in the name of Cede & Co., for the respective accounts of the several Underwriters of the Bonds registered in such names and in such denominations as the Representatives shall request in writing not less than the business day immediately preceding the date of delivery, with any transfer taxes payable in connection with the transfer of the Bonds to the Underwriters duly paid. Delivery of the Bonds shall be made through the facilities of The Depository Trust Company unless the Representatives shall otherwise instruct.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. *Conditions to the Underwriters' Obligations.* The obligations of the Underwriters are subject to the following conditions:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Subsequent to the execution and delivery of this Agreement and prior to the Closing Date:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) there shall not have occurred any downgrading or withdrawal, nor shall any notice have been given of any intended or potential downgrading or withdrawal or of any review for a possible change that does not indicate the direction of the possible change, in the rating accorded any of the Company's securities by any "nationally recognized statistical rating organization," as such term is defined for purposes of Section 3(a)(62) of the Exchange Act;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) any Preliminary Prospectus and the Prospectus shall have been timely filed with the Commission in accordance with Section 7(b) hereof; the Company shall have complied with all filing requirements applicable to any Issuer Free Writing Prospectus; no stop order suspending the effectiveness of the Registration Statement or preventing or suspending the use of the Prospectus or any Issuer Free Writing Prospectus shall have been issued and no proceeding for such purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering shall have been initiated or threatened by the Commission; any request of the Commission for inclusion of additional information in the Registration Statement or Prospectus or otherwise shall have been complied with; and the Company has not received from the Commission any notice pursuant to Rule 401(g)(2) of the Rules and Regulations objecting to use of the automatic shelf registration statement form; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) there shall not have occurred any change, or any development involving a prospective change, in the condition, financial or otherwise, or in the earnings, business or operations of the Company and its subsidiaries, taken as a whole, from that set forth in the Pricing Disclosure Package that, in the judgment of the Representatives, is material and adverse and that makes it, in the judgment of the Representatives, impracticable or inadvisable to proceed with the offer, sale or delivery of the Bonds on the terms and in the manner contemplated in the Pricing Disclosure Package and this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) The Underwriters shall have received on the Closing Date a certificate, dated the Closing Date and signed by an executive officer of the Company, to the effect set forth in Sections 6(a)(i) and (ii) above and to the effect that (i) the representations and warranties of the Company contained in this Agreement are true and correct as of the Closing Date and that the Company has complied with all of the agreements and satisfied all of the conditions on its part to be performed or satisfied hereunder on or before the Closing Date and (ii) since the Effective Date, no event has occurred that should have been set forth in a supplement or amendment to the Registration Statement, the Prospectus or any Issuer Free Writing Prospectus that has not been so set forth. The officer signing and delivering such certificate may rely upon the best of his or her knowledge as to proceedings threatened.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) At the Closing Date, the Bonds shall have at least the ratings specified in the Pricing Disclosure Package, and the Company shall have delivered to the Underwriters a letter, dated the Closing Date, from each relevant rating agency, or other evidence reasonably satisfactory to the Underwriters, confirming that the Bonds have been assigned such ratings;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) The Underwriters shall have received (i) from Ropes & Gray LLP, outside counsel to the Company, an opinion dated the Closing Date in the form attached hereto as **<u>Exhibit A</u>**, and (ii) from internal counsel to the Company, an opinion dated the Closing Date in the form attached hereto as **<u>Exhibit B</u>**. The Company shall have furnished to each such counsel such documents as they request for the purpose of enabling them to pass on such matters.

Insofar as the foregoing opinions relate to matters governed by the law of the State of New Hampshire, such counsel may rely on the opinions of even date therewith of Erik Newman, Esq., Senior Counsel of Eversource Energy Service Company, a service company affiliate of Eversource Energy, and counsel to the Company, and Orr & Reno P.A., counsel for the Company, each as addressed to such counsel. Insofar as the foregoing opinions relate to matters governed by the law of the State of Maine, such counsel may rely on the opinion of even date therewith of Verill Dana LLP, counsel for the Company, and for matters governed by the law of the State of Vermont, such counsel may rely on the opinion of even date therewith of Paul Frank + Collins P.C., counsel for the Company, each as addressed to such counsel. Each of the foregoing opinions shall be addressed to or shall allow the Underwriters to rely on such opinion as if they were an addressee thereto.

The opinions of Counsel described in this Section 6(d) shall be rendered to the Underwriters at the request of the Company and shall so state therein.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) The Underwriters shall have received from Choate, Hall & Stewart LLP, special counsel for the Underwriters, an opinion dated the Closing Date and addressed to the Underwriters, with respect to such matters as the Representatives may reasonably require, and the Company shall have furnished to such counsel such documents as they request for the purpose of enabling them to pass upon such matters.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) The Underwriters shall have received on the date hereof and on the Closing Date, letters, the first dated the date hereof and the second dated the Closing Date, each in form and substance satisfactory to the Underwriters, from Deloitte & Touche LLP, containing statements and information of the type ordinarily included in accountants' "comfort letters" to underwriters with respect to the financial statements and certain financial information contained in or incorporated by reference in the most recent Preliminary Prospectus, the Pricing Disclosure Package and the Prospectus.

If any of the conditions specified in this Section 6 shall not have been fulfilled when and as provided in this Agreement, or if any of the opinions and certificates mentioned above or elsewhere in this Agreement shall not be reasonably satisfactory in form and substance to the Representatives and counsel for the Underwriters, this Agreement and all obligations of the Underwriters hereunder may be canceled at, or at any time prior to, the Closing Date by the Representatives. Notice of such cancellation shall be given to the Company in writing or by telephone or facsimile confirmed in writing.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. *Covenants of the Company.* In further consideration of the agreements of the Underwriters herein contained, the Company covenants with each Underwriter as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) To furnish the Representatives, without charge, one (1) signed copy of the Registration Statement (including exhibits thereto) and, for delivery to each other Underwriter, a conformed copy of the Registration Statement (without exhibits thereto) and to furnish the Representatives in New York City, without charge, prior to 10:00 a.m. New York City time on the business day next succeeding the date of this Agreement and during the period mentioned in Section 7(e) hereof, as many copies of the Preliminary Prospectus, Prospectus, each Issuer Free Writing Prospectus, any documents incorporated by reference therein and any supplements and amendments thereto or to the Registration Statement as the Representatives may reasonably request.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) To prepare the Prospectus in a form approved by the Representatives and to file the Preliminary Prospectus and the Prospectus pursuant to Rule 424(b) of the Rules and Regulations not later than the Commission's close of business on the second business day following the execution and delivery of this Agreement. If, at any time prior to the filing of the Prospectus pursuant to Rule 424(b) of the Rules and Regulations, any event shall occur or condition exist as a result of which the Pricing Disclosure Package would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein in the light of the circumstances under which they were made or the circumstances then prevailing not misleading, the Company will (i) notify promptly the Representatives so that any use of the Pricing Disclosure Package may cease until it is amended or supplemented; (ii) amend or supplement the Pricing Disclosure Package to correct such statement or omission; and (iii) supply any amendment or supplement to the Underwriters in such quantities as the Representatives may reasonably request.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) If required by the Securities Act, to timely file with the Commission under the Securities Act each Issuer Free Writing Prospectus. The Company will prepare a pricing term sheet, substantially in the form of Exhibit A to Schedule II hereto, in a form approved by the Representatives and agrees to file such pricing term sheet pursuant to Rule 433(d) of the Rules and Regulations within the time required by such Rule and to file all other material required to be filed by the Company with the Commission pursuant to Rule 433(d) of the Rules and Regulations.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Before amending or supplementing the Registration Statement, any Preliminary Prospectus, the Pricing Disclosure Package or the Prospectus with respect to the Bonds, to furnish to the Representatives a copy of each such proposed amendment or supplement and not to file any such proposed amendment or supplement to which the Representatives reasonably object.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) If, during such period after the first date of the public offering of the Bonds as in the opinion of counsel for the Underwriters the Prospectus is required by law to be delivered (including in such circumstances where such requirement can be satisfied pursuant to Rule 172 of the Rules and Regulations) in connection with sales by an Underwriter or dealer, any event shall occur or condition exist as a result of which it is necessary to amend or supplement the Prospectus in order to make the statements therein, in the light of the circumstances when the Prospectus is delivered to a purchaser, not misleading, or if, in the opinion of counsel for the Underwriters, it is necessary to amend or supplement the Prospectus to comply with applicable law, forthwith to prepare, file with the Commission and furnish, at its own expense, to the Underwriters and to the dealers (whose names and addresses the Representatives will furnish to the Company) to which Bonds may have been sold by the Underwriters and to any other dealers upon request, either amendments or supplements to the Prospectus so that the statements in the Prospectus as so amended or supplemented will not, in the light of the circumstances when the Prospectus is delivered to a purchaser, be misleading or so that the Prospectus, as amended or supplemented, will comply with law.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) To endeavor to qualify the Bonds for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Representatives shall reasonably request; <u>provided</u>, <u>however</u>, that the Company shall not be required to qualify as a foreign corporation or to file a consent to service of process or to file annual reports or to comply with any other requirements deemed by the Company in its reasonable judgment to be unduly burdensome.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(g) Not to make any offer relating to the Bonds that would constitute an Issuer Free Writing Prospectus without the prior written consent of the Representatives.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(h) To retain in accordance with the Rules and Regulations all Issuer Free Writing Prospectuses it uses or refers to; and if at any time after the date hereof any events shall have occurred as a result of which any Issuer Free Writing Prospectus, as then amended or supplemented, would conflict with the information in the Registration Statement, the most recent Preliminary Prospectus or the Prospectus or would include an untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made not misleading or, if for any other reason it shall be necessary to amend or supplement any Issuer Free Writing Prospectus, to notify the Representatives and, upon their request, to file such document and to prepare and furnish without charge to each Underwriter as many copies as the Representatives may from time to time reasonably request of an amended or supplemented Issuer Free Writing Prospectus that will correct such conflict, statement or omission or effect such compliance.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To make generally available to the Company's security holders, as soon as practicable, an earnings statement (which need not be audited) covering a period of at least twelve months beginning after the "effective date of the registration statement" within the meaning of Rule 158 of the Rules and Regulations, which earning statement shall be in such form, and be made generally available to security holders in such a manner, as to meet the requirements of the last paragraph of Section 11(a) of the Securities Act and Rule 158 of the Rules and Regulations.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(j) During the period beginning on the date of this Agreement and continuing to and including the Closing Date, not to offer, sell, contract to sell or otherwise dispose of, directly or indirectly, any debt securities of the Company or warrants to purchase debt securities of the Company substantially similar to the Bonds (other than (i) the Bonds and (ii) commercial paper issued in the ordinary course of business), without the prior written consent of the Representatives.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(k) Whether or not the transactions contemplated in this Agreement are consummated or this Agreement is terminated, to pay or cause to be paid all expenses incident to the performance of its obligations under this Agreement, including: (i) the fees, disbursements and expenses of the Company's counsel and the Company's accountants in connection with the registration and delivery of the Bonds under the Securities Act and all other fees or expenses in connection with the preparation and filing of the Registration Statement, any Preliminary Prospectus, the Prospectus, any Issuer Free Writing Prospectus and amendments and supplements to any of the foregoing, including all printing costs associated therewith, and the mailing and delivering of copies thereof to the Underwriters and dealers, in the quantities hereinabove specified, (ii) all costs and expenses related to the transfer and delivery of the Bonds to the Underwriters, including any transfer or other taxes payable thereon, (iii) the cost of printing or producing any Blue Sky memorandum in connection with the offer and sale of the Bonds under state law and all expenses in connection with the qualification of the Bonds for offer and sale under state law as provided in Section 7(f) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters not to exceed $10,000 in connection with such qualification and in connection with the Blue Sky memorandum, (iv) the fees and disbursements of the Company's accountants and the Trustee and its counsel, (v) all filing fees and the reasonable fees and disbursements of counsel to the Underwriters incurred in connection with any review and qualification of the offering of the Bonds by the Financial Industry Regulatory Authority, (vi) any fees charged by the rating agencies for the rating of the Bonds and (vii) all other costs and expenses incident to the performance of the obligations of the Company hereunder for which provision is not otherwise made in this Section. It is understood, however, that except as provided in this Section, Section 8 entitled "Indemnity and Contribution", and clause (b) of Section 10 entitled "Defaulting Underwriters" hereof, the Underwriters will pay all of their costs and expenses, including fees and disbursements of their counsel (except as set forth in this Section 7(k)), and any advertising expenses connected with any offers they may make.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(l) The Company will comply with all applicable securities and other applicable laws, rules and regulations, including, without limitation, the Sarbanes-Oxley Act, and will use its best efforts to cause the Company's directors and officers, in their capacities as such, to comply with such laws, rules and regulations, including, without limitation, the provisions of the Sarbanes-Oxley Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(m) The Company will not take, directly or indirectly, any action designed to or that would constitute or that might reasonably be expected to cause or result in, under the Exchange Act or otherwise, stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Bonds.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(n) If the supplemental indenture establishing the terms of the Bonds (the "**Supplemental Indenture**") is not recorded prior to the Closing Date, then (1) within 10 days after the Closing Date, the Company shall deliver such Supplemental Indenture in recordable form to the appropriate real estate recording office in all jurisdictions specified in such Supplemental Indenture for recording and deliver to the office of the Secretary of State of the State of New Hampshire a UCC-1 financing statement relating to the Supplemental Indenture for filing in such office and (2) within 25 days after the Closing Date, the Company shall deliver to counsel to the Underwriters a certificate signed by an officer of the Company certifying that the actions required by the foregoing clause (1) have been taken. The Company shall further provide counsel to the Underwriters, as soon as it is available, a copy of the related opinion of counsel contemplated by Section 1614(a) of the Indenture. To the extent not covered by the opinion described in the previous sentence, the Company shall also provide counsel to the Underwriters, concurrently with the furnishing of such opinion, a list of the recording information for all such filings.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(o) The Company will pay the applicable Commission filing fees relating to the Bonds within the time required by Rule 456(b)(1) of the Rules and Regulations without regard to the proviso thereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(p) If immediately prior to the third anniversary (the "**Renewal Deadline**") of the initial effective date of the Registration Statement, any of the Bonds remain unsold by the Underwriters, the Company will, prior to the Renewal Deadline, file, if it has not already done so and is eligible to do so, a new automatic shelf registration statement relating to the Bonds, in a form satisfactory to the Representatives. If the Company is no longer eligible to file an automatic shelf registration statement, the Company will prior to the Renewal Deadline, if it has not already done so, file a new shelf registration statement relating to the Bonds, in a form satisfactory to the Representatives, and will use its best efforts to cause such registration statement to be declared effective within 60 days after the Renewal Deadline. The Company will take all other action necessary or appropriate to permit the public offering and sale of the Bonds to continue as contemplated in the expired registration statement relating to the Bonds. References herein to the Registration Statement shall include such new automatic shelf registration statement or such new shelf registration statement, as the case may be.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(q) If at any time when Bonds remain unsold by the Underwriters the Company receives from the Commission a notice pursuant to Rule 401(g)(2) of the Rules and Regulations or otherwise ceases to be eligible to use the automatic shelf registration statement form, the Company will (i) promptly notify the Representatives, (ii) promptly file a new registration statement or post-effective amendment on the proper form relating to the Bonds, in a form satisfactory to the Representatives, (iii) use its best efforts to cause such registration statement or post-effective amendment to be declared effective and (iv) promptly notify the Representatives of such effectiveness. The Company will take all other action necessary or appropriate to permit the public offering and sale of the Bonds to continue as contemplated in the registration statement that was the subject of the Rule 401(g)(2) of the Rules and Regulations notice or for which the Company has otherwise become ineligible. References herein to the Registration Statement shall include such new registration statement or post-effective amendment, as the case may be.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8. *Indemnity and Contribution.* (a) The Company agrees to indemnify and hold harmless each Underwriter, its directors, officers and employees and each person, if any, who controls any Underwriter within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act from and against any and all losses, claims, damages and liabilities when and as incurred by them (including, without limitation, any legal or other expenses reasonably incurred in connection with defending or investigating any such action or claim) that are based upon or arise out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, any Preliminary Prospectus, the Prospectus, the Pricing Disclosure Package (as defined to include, as of the Applicable Time, the most recent Preliminary Prospectus, together with each Issuer Free Writing Prospectus listed on Schedule II hereto), any Issuer Free Writing Prospectus or in any amendment or supplement thereto, or any "issuer information" (as defined in Rule 433 of the Rules and Regulations) contained in any free writing prospectus, so long as the Company consented in writing to such free writing prospectus prior to its first use or any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, except insofar as such losses, claims, damages or liabilities are caused by any such untrue statement or omission or alleged untrue statement or omission based upon information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use therein, which information consists solely of the information specified in Section 8(g) hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, its officers who sign the Registration Statement and each person, if any, who controls the Company within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the foregoing indemnity from the Company to such Underwriter, but only with reference to information relating to such Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in the Registration Statement, any Preliminary Prospectus, the Prospectus, the Pricing Disclosure Package, any Issuer Free Writing Prospectus or in any amendments or supplements thereto, which information is limited to the information set forth in Section 8(g) hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) In case any proceeding (including any governmental investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to either Section 8(a) or 8(b) hereof, such person (the "**indemnified party**") shall promptly notify the person against whom such indemnity may be sought (the "**indemnifying party**") in writing (but the omission so to notify the indemnifying party under this subsection shall not relieve it from any liability which it otherwise might have to an indemnified party otherwise than under this subsection) and the indemnifying party, upon request of the indemnified party, shall retain counsel reasonably satisfactory to the indemnified party to represent the indemnified party and any others the indemnifying party may designate in such proceeding and shall pay the fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such indemnified party unless (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel or (ii) the named parties to any such proceeding (including any impleaded parties) include both the indemnifying party and the indemnified party and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them or (iii) the indemnifying party has not retained counsel within a reasonable period of time after the request by the indemnified party to do so. It is understood that the indemnifying party shall not, in respect of the legal expenses of any indemnified party in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all such indemnified parties and that all such fees and expenses shall be reimbursed as they are incurred. Such firm shall be designated in writing by the Representatives, in the case of parties indemnified pursuant to Section 8(a) hereof, and by the Company, in the case of parties indemnified pursuant to Section 8(b) hereof. The indemnifying party shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified party from and against any loss or liability by reason of such settlement or judgment. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement of any pending or threatened proceeding in respect of which any indemnified party is or could have been a party and indemnity could have been sought hereunder by such indemnified party, unless such settlement (x) includes an unconditional release of such indemnified party from all liability on claims that are the subject matter of such proceeding and (y) does not include a statement as to, or an admission of, fault, culpability or a failure to act by or on behalf of any indemnified party.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) To the extent the indemnification provided for in Section 8(a) or 8(b) hereof is unavailable to an indemnified party or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each indemnifying party under such paragraph, in lieu of indemnifying such indemnified party thereunder, shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other hand from the offering of the Bonds or (ii) if the allocation provided by clause 8(d)(i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause 8(d)(i) above but also the relative fault of each indemnifying party on the one hand and each indemnified party on the other hand in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other hand in connection with the offering of the Bonds shall be deemed to be in the same respective proportions as the net proceeds from the offering of such Bonds (before deducting expenses) received by the Company and the total underwriting discounts and commissions received by the Underwriters, in each case as set forth in the table on the cover of the Prospectus, bear to the aggregate public offering price of the Bonds. The relative fault of each indemnifying party on the one hand and each indemnified party on the other hand shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by such indemnifying party or by such indemnified party and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Underwriters' respective obligations to contribute pursuant to this Section 8 are several in proportion to the respective principal amounts of Bonds they have purchased hereunder, and not joint.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e) The Company and the Underwriters agree that it would not be just or equitable if contribution pursuant to this Section 8 were determined by *pro rata* allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in Section 8(d) hereof. The amount paid or payable by an indemnified party as a result of the losses, claims, damages and liabilities referred to in the immediately preceding paragraph shall be deemed to include, subject to the limitations set forth above, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 8, no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Bonds underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The remedies provided for in this Section 8 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f) The indemnity and contribution provisions contained in this Section 8 and the representations, warranties and other statements of the Company contained in this Agreement shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on behalf of any Underwriter or any person controlling any Underwriter or the Company, its officers or directors or any person controlling the Company and (iii) acceptance of and payment for any of the Bonds.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(g) The Underwriters severally confirm and the Company acknowledges and agrees that the statements (i) regarding delivery of the Bonds by the Underwriters set forth in the last paragraph of text on the cover page, (ii) in the fourth and fifth paragraphs of text under the caption "Underwriting" and (iii) in the second, third and fourth sentences of the third paragraph of text under the caption "Underwriting" of the most recent Preliminary Prospectus and the Prospectus are correct and constitute the only information concerning such Underwriter furnished in writing to the Company by or on behalf of the Underwriters specifically for inclusion in the Registration Statement, any Preliminary Prospectus, the Prospectus, the Pricing Disclosure Package, any Issuer Free Writing Prospectus or in any amendment or supplement thereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9. *Termination.* This Agreement shall be subject to termination by notice given by the Representatives to the Company, if (a) after the execution and delivery of this Agreement and on or prior to the Closing Date (i) trading generally shall have been suspended or materially limited on or by, as the case may be, any of the New York Stock Exchange, the Nasdaq Stock Market, the Chicago Board of Options Exchange, the Chicago Mercantile Exchange or the Chicago Board of Trade or there shall have been established by any of such exchanges or by the Commission or by any federal or state agency or by the decision of any court, any general limitation on prices for such trading or any general restrictions on the distribution of securities, (ii) trading of any securities of the Company or Eversource Energy shall have been suspended on any exchange or in any over-the-counter market, (iii) a general moratorium on commercial banking activities in New York shall have been declared by either Federal or New York State authorities, (iv) there shall have occurred any (A) outbreak of hostilities affecting the United States, or (B) other national or international calamity or crisis, or any material adverse change in financial, political or economic conditions affecting the United States, including, but not limited to, an escalation of hostilities that existed prior to the date of this Agreement, or (v) there shall have occurred any material disruption in commercial banking, securities settlement or clearance services and (b) in the case of any of the events specified in clauses 9(a)(i) through 9(a)(v), such event, singly or together with any other such event, makes it impracticable or inadvisable, in the sole judgment of the Representatives, to proceed with the offer, sale or delivery of the Bonds on the terms and in the manner contemplated in the most recent Preliminary Prospectus or the Prospectus.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10. *Defaulting Underwriters.* (a) If, on the Closing Date, any one or more of the Underwriters shall fail or refuse to purchase the Bonds set forth opposite the name of such Underwriter or Underwriters in Schedule I hereto that it has or they have agreed to purchase hereunder on such date, and the aggregate amount of such Bonds which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase is not more than one-tenth of the aggregate amount of the Bonds of such Underwriter or Underwriters to be purchased on such date, the other Underwriters shall be obligated severally in the proportions that the amount of such Bonds set forth opposite their respective names in Schedule I hereto bears to the aggregate amount of such Bonds set forth opposite the names of all such non-defaulting Underwriters, or in such other proportions as the Representatives may specify, to purchase the Bonds which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase on such date; *provided* that in no event shall the amount of the Bonds that any Underwriter has agreed to purchase pursuant to this Agreement be increased pursuant to this Section 10 by an amount in excess of one-ninth of such amount of such Bonds without the written consent of such Underwriter. If, on the Closing Date, any Underwriter or Underwriters shall fail or refuse to purchase such Bonds and the aggregate amount of such Bonds with respect to which such default occurs is more than one tenth of the aggregate amount of such Bonds to be purchased on such date, and arrangements satisfactory to the Representatives and the Company for the purchase of such Bonds are not made within 36 hours after such default, this Agreement shall terminate without liability on the part of any non-defaulting Underwriter or the Company. In any such case either the Representatives or the Company shall have the right to postpone the Closing Date, but in no event for longer than seven days, in order that the required changes, if any, in the Registration Statement and in the Prospectus or in any other documents or arrangements may be effected. Any action taken under this paragraph shall not relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) If this Agreement shall be terminated by the Underwriters because any condition to the obligation of the Underwriters set forth in Section 6 hereof is not satisfied, because of any termination pursuant to Section 9 hereof or because of any failure or refusal on the part of the Company to comply with the terms or to fulfill any of the conditions of this Agreement, or if for any reason the Company shall be unable to perform its obligations under this Agreement, the Company will reimburse the Underwriters for all out of pocket expenses (including the fees and disbursements of their counsel) reasonably incurred by the Underwriters in connection with this Agreement or the offering contemplated hereunder.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;11. *No Fiduciary Duty.* The Company acknowledges and agrees that in connection with this offering, sale of the Bonds or any other services the Underwriters may be deemed to be providing hereunder, notwithstanding any preexisting relationship, advisory or otherwise, between the parties or any oral representations or assurances previously or subsequently made by the Underwriters: (i) no fiduciary or agency relationship between the Company and any other person, on the one hand, and the Underwriters, on the other, exists; (ii) the Underwriters are not acting as advisors, expert or otherwise, to the Company, including, without limitation, with respect to the determination of the public offering price of the Bonds, and such relationship between the Company, on the one hand, and the Underwriters, on the other, is entirely and solely commercial and based on arms-length negotiations; (iii) any duties and obligations that the Underwriters may have to the Company shall be limited to those duties and obligations specifically stated herein; and (iv) the Underwriters and their respective affiliates may have interests that differ from those of the Company. The Company hereby waives any claims that the Company may have against the Underwriters with respect to any breach of fiduciary duty in connection with this offering.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12. *Representations and Indemnities to Survive*. The respective agreements, representations, warranties, indemnities and other statements of the Company or its officers and of the Underwriters set forth in or made pursuant to this Agreement will remain in full force and effect, regardless of any investigation made by or on behalf of any Underwriter or the Company or any of the officers, directors, employees, agents or controlling persons referred to in Section 8 hereof, and will survive delivery of and payment for the Bonds. The provisions of Sections 8 and 10(b) hereof shall survive the termination or cancellation of this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13. *Notices*. All communications hereunder will be in writing and effective only on receipt, and, if sent to the Underwriters, will be mailed, delivered or telefaxed to BofA Securities, Inc., 114 West 47th Street NY8-114-07-01, New York, New York 10036, Attention: High Grade Transaction Management/Legal, Facsimile No.: (212) 901-7881; Morgan Stanley & Co. LLC, 1585 Broadway, 29th Floor, New York, New York 10036, Attention: Investment Banking Division, Phone: (212) 761-6691, Facsimile No: (21) 507-8999; and TD Securities (USA) LLC, 1 Vanderbilt Avenue, 11<sup>th</sup> Floor, New York, New York 10017, Attention: DCM-Transaction Advisory Email: ustransactionadvisory@tdsecurities.com; or, if sent to the Company, will be mailed, delivered or telefaxed to Public Service Company of New Hampshire doing business as Eversource Energy, c/o Eversource Energy Service Company, 247 Station Drive, Westwood, Massachusetts 02090, Facsimile No.: (781) 441-3086, Attention: Assistant Treasurer, Corporate Finance and Cash Management; with a copy to the Executive Vice President and General Counsel at 56 Prospect Street, Hartford, Connecticut 06103.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;14. *Counterparts.* This Agreement may be signed in two or more counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. Counterparts may be delivered via facsimile, electronic mail (including any electronic signature covered by the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act, the Electronic Signatures and Records Act or other applicable law) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;15. *WAIVER OF JURY TRIAL.* THE COMPANY HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16. *Applicable Law.* This Agreement shall be governed by and construed in accordance with the internal laws of the State of New York.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;17. *Headings.* The headings of the sections of this Agreement have been inserted for convenience of reference only and shall not be deemed a part of this Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;18. *USA Patriot Act*. In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the Underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company, which information may include the name and address of their respective clients, as well as other information that will allow the Underwriters to properly identify their respective clients.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19. *Recognition of the U.S. Special Resolution Regimes*. (a) In the event that any Underwriter that is a Covered Entity becomes subject to a proceeding under a U.S. Special Resolution Regime, the transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) In the event that any Underwriter that is a Covered Entity or a BHC Act Affiliate of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Underwriter are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

For purposes of this Section 19, a "BHC Act Affiliate" has the meaning assigned to the term "affiliate" in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k). "Covered Entity" means any of the following: (i) a "covered entity" as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b); (ii) a "covered bank" as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b); or (iii) a "covered FSI" as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b). "Default Right" has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as applicable. "U.S. Special Resolution Regime" means each of (i) the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii) Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

*[Signature pages follow.]*

Please confirm your agreement by having an authorized officer sign a copy of this Agreement in the space set forth below.

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| | |
|:---|:---|
| Very truly yours, | Very truly yours, |
| PUBLIC SERVICE COMPANY OF NEW <br> HAMPSHIRE, doing business as Eversource Energy | PUBLIC SERVICE COMPANY OF NEW <br> HAMPSHIRE, doing business as Eversource Energy |
| By: | /s/ Emilie G. O'Neil |
|  | Emilie G. O'Neil |
|  | Assistant Treasurer-Corporate Finance and Cash Management |

---

---

| | |
|:---|:---|
| Accepted and Agreed: | Accepted and Agreed: |
| BOFA SECURITIES, INC. | BOFA SECURITIES, INC. |
| By: | /s/ Matt Brusotti |
|  | Name: Matt Brusotti |
|  | Title: Managing Director |
| MORGAN STANLEY & CO. LLC | MORGAN STANLEY & CO. LLC |
| By: | /s/ Natalie Smithson |
|  | Name: Natalie Smithson |
|  | Title: Vice President |
| TD SECURITIES (USA) LLC | TD SECURITIES (USA) LLC |
| By: | /s/ Luiz Lanfredi |
|  | Name: Luiz Lanfredi |
|  | Title: Managing Director |

---

**SCHEDULE I**

4.40% First Mortgage Bonds, Series Y, due 2028

---

| | |
|:---|:---|
| Underwriters | Principal Amount of Bonds |
| BofA Securities, Inc. | $93000000 |
| Morgan Stanley & Co. LLC | $93000000 |
| TD Securities (USA) LLC | $93000000 |
| Samuel A. Ramirez & Company, Inc. | $21000000 |
| Total | $300000000 |

---

**SCHEDULE II**

**Complete list of all Issuer Free Writing Prospectuses used in connection with the offering of the Bonds**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. Term sheet, dated June 16, 2025, attached as Exhibit A to this Schedule II.

<u>Exhibit A to Schedule II</u>

**Free Writing Prospectus**

**Filed pursuant to Rule 433**

**Registration No. 333-286362-02**

June 16, 2025

**Public Service Company of New Hampshire**

**doing business as Eversource Energy**

---

| | |
|:---|:---|
| &nbsp;&nbsp; <u>Pricing Term Sheet</u> | &nbsp;&nbsp; <u>Pricing Term Sheet</u> |
| &nbsp;&nbsp;Issuer: | &nbsp;&nbsp;Public Service Company of New Hampshire doing business as Eversource Energy |
| &nbsp;&nbsp;Security: | &nbsp;&nbsp;$300,000,000 4.40% First Mortgage Bonds, Series Y, due 2028 (the "**Bonds**") |
| &nbsp;&nbsp;Principal Amount: | &nbsp;&nbsp;$300000000 |
| &nbsp;&nbsp;Maturity Date: | &nbsp;&nbsp;July 1, 2028 |
| &nbsp;&nbsp;Coupon: | &nbsp;&nbsp;4.40% |
| &nbsp;&nbsp;Benchmark Treasury: | &nbsp;&nbsp;3.875% due June 15, 2028 |
| &nbsp;&nbsp;Benchmark Treasury Price / Yield: | &nbsp;&nbsp;99-26 3/4 / 3.934% |
| &nbsp;&nbsp;Spread to Benchmark Treasury: | &nbsp;&nbsp;50 basis points |
| &nbsp;&nbsp;Re-Offer Yield: | &nbsp;&nbsp;4.434% |
| &nbsp;&nbsp;Price to Public: | &nbsp;&nbsp;99.904% of the principal amount |
| &nbsp;&nbsp;Interest Payment Dates: | &nbsp;&nbsp;Semi-annually in arrears on January 1 and July 1 commencing on January 1, 2026 |
| &nbsp;&nbsp;Optional Redemption Provisions: | &nbsp;&nbsp;Make-whole call at any time prior to the Maturity Date at a discount rate of Treasury plus 10 basis points |
| &nbsp;&nbsp;Trade Date: | &nbsp;&nbsp;June 16, 2025 |
| &nbsp;&nbsp;Settlement Date\*: | &nbsp;&nbsp;June 24, 2025 (T+5) |
| &nbsp;&nbsp;CUSIP / ISIN: | &nbsp;&nbsp;744538 AH2 / US744538AH21 |
| &nbsp;&nbsp;Ratings\*\*: | &nbsp;&nbsp;A1 (Moody's); A (S&P); A+ (Fitch) |
| &nbsp;&nbsp;Joint Book-Running Managers: | &nbsp;&nbsp; BofA Securities, Inc.<br> Morgan Stanley & Co. LLC<br> TD Securities (USA) LLC |
| &nbsp;&nbsp;Co-Manager: | &nbsp;&nbsp;Samuel A. Ramirez & Company, Inc. |

---

\* Pursuant to Rule 15c6-1 under the Securities Exchange Act of 1934, as amended, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade Series Y Bonds in the secondary market prior to the date that is one business day before the settlement date will be required, by virtue of the fact that the Series Y Bonds initially will settle T+5 (on June 24, 2025) to specify an alternate settlement cycle at the time of any such trade to prevent a failed settlement. Purchasers of bonds who wish to trade bonds prior to the date that is one business day before the settlement date should consult their own advisors.

\*\* Note: A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

**The issuer has filed a registration statement (including a prospectus, as supplemented) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus (as supplemented) in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering.** You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus (as supplemented) if you request it by calling BofA Securities, Inc. toll-free at (800) 294-1322; Morgan Stanley & Co. LLC toll-free at (866) 718-1649; or TD Securities (USA) LLC toll-free at (855) 495-9846.

**SCHEDULE III**

Closing Date and Location:

10:00 a.m., New York time

June 24, 2025

Choate, Hall & Stewart LLP

Two International Place

Boston, Massachusetts 02110

---

| | |
|:---|:---|
| Purchase Price for the Bonds: | 99.554% of the principal amount thereof |

---

**<u>Exhibit A</u>**

**Opinion of Ropes & Gray LLP**

[see attached]

**<u>Exhibit B</u>**

**Opinion of Internal Counsel to the Company**

[see attached]

## Exhibit 4.1

**Exhibit 4.1**

PUBLIC SERVICE COMPANY

OF NEW HAMPSHIRE,

doing business as EVERSOURCE ENERGY,

AND

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION,

Successor in interest to U.S. Bank National Association

Successor to WACHOVIA BANK, NATIONAL ASSOCIATION

and to FIRST UNION NATIONAL BANK

Formerly Known as FIRST FIDELITY BANK, NATIONAL ASSOCIATION,

NEW JERSEY

Successor to BANK OF NEW ENGLAND, NATIONAL ASSOCIATION

(Formerly Known as NEW ENGLAND MERCHANTS NATIONAL BANK)

and to

NEW BANK OF NEW ENGLAND, NATIONAL ASSOCIATION, TRUSTEE

TWENTY-Eighth SUPPLEMENTAL INDENTURE

Dated as of June 1, 2025

TO ISSUE SERIES Y

FIRST MORTGAGE BONDS

$300,000,000 First Mortgage Bonds, Series Y, due 2028

**TABLE OF CONTENTS**

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| | |
|:---|:---|
|  | Page |
| Article 1 SERIES Y BONDS | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.01 Designation; Amount | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.02 Form of Series Y Bonds; Global Security; Depository for Global Securities | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.03 Provisions of Series Y Bonds: Interest Accrual | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.04 Transfer and Exchange of Series Y Bonds | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.05 Redemption of the Series Y Bonds | 7 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.06 Definitions Applicable to Redemption Provisions. | 7 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.07 Effect of Event of Default | 9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.08 Payment Date Not a Business Day | 9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 1.09 Consent to Amendment and Restatement of Mortgage Indenture | 9 |
| Article 2 MISCELLANEOUS PROVISIONS | 9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.01 Recitals | 9 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.02 Benefits of Twenty-Eighth Supplemental Indenture | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.03 Effect of Twenty-Eighth Supplemental Indenture | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.04 Termination | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.05 Trust Indenture Act | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.06 Counterparts | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.07 Notices | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section 2.08 Definitions | 10 |

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Testimonium

Signatures

Schedule A – Form of Series Y Bonds

Schedule B – Description of Certain Easements Acquired Since April 1, 2024

Acknowledgments

Endorsement

i

THIS TWENTY-EIGHTH SUPPLEMENTAL INDENTURE dated as of June 1, 2025, between PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE, doing business as Eversource Energy (with its successors and assigns, the "Company"), a corporation duly organized and existing under the laws of the State of New Hampshire, having its principal place of business at Energy Park, 780 North Commercial Street in Manchester, New Hampshire 03101, and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (as successor in interest to U.S. Bank National Association, successor to Wachovia Bank, National Association, and by merger to First Union National Bank, formerly known as First Fidelity Bank, National Association, New Jersey, successor in trust to Bank of New England, National Association (formerly known as New England Merchants National Bank) and to New Bank of New England, National Association), said U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION being a national banking association duly organized and existing under the laws of the United States of America having a corporate trust office at One Federal Street, Boston, MA 02110 and duly authorized to execute the trusts hereof (with its successors in trust, the "Trustee"), as trustee under the First Mortgage Indenture, dated August 15, 1978 (as heretofore amended, including as amended and restated on June 1, 2011, being hereinafter generally called the "Mortgage Indenture" and, together with each and every prior indenture supplemental thereto and each and every other instrument, including this Twenty-Eighth Supplemental Indenture, supplemental to the Mortgage Indenture, as the "Indenture").

WHEREAS, the Company has previously executed and delivered to the Trustee twenty-seven supplemental indentures which are part of the Indenture for the purposes recited therein and for the purpose of issuing bonds under the Indenture, the currently outstanding series of which are set forth in the following table:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Supplemental Indenture No.** | **Dated<br> as of** | **Series** | **Series Designation** | **Principal <br> Amount <br> Authorized** | **Principal <br> Amount<br> Issued** | **Principal <br> Amount Outstanding** |
| Fourteenth | October 1, 2005 | Series M | 5.60% First Mortgage Bonds (Series M, due 2035) | $50000000 | $50000000 | $50000000 |
| Twenty-Second | June 1, 2019 | Series T | 3.60% First Mortgage Bonds (Series T, due 2049) | $300000000 | $300000000 | $300000000 |
| Twenty-Third | August 1, 2020 | Series U | 2.40% First Mortgage Bonds (Series U, due 2050) | $150000000 | $150000000 | $150000000 |
| Twenty-Fourth | June 1, 2021 | Series V | 2.20% First Mortgage Bonds (Series V, due 2031) | $350000000 | $350000000 | $350000000 |
| Twenty-Fifth | January 1, 2023 | Series W | 5.15% First Mortgage Bonds (Series W, due 2053) | $300000000 | $300000000 | $300000000 |
| Twenty-Sixth | September 1, 2023 | Series X | 5.35% First Mortgage Bonds (Series X, due 2033) | $300000000 | $300000000 | $300000000 |
| Twenty-Seventh | April 1, 2024 | Series X | 5.35% First Mortgage Bonds (Series X, due 2033) | $300000000 | $300000000 | $300000000 |
| Total Principal Amount Outstanding: | Total Principal Amount Outstanding: | Total Principal Amount Outstanding: | Total Principal Amount Outstanding: | Total Principal Amount Outstanding: | Total Principal Amount Outstanding: | $1750000000 |

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WHEREAS, the execution and delivery of this Twenty-Eighth Supplemental Indenture and the issue of not exceeding initially $300,000,000 in aggregate principal amount of the Company's First Mortgage Bonds, Series Y (hereinafter generally referred to as the "Series Y Bonds" or the "bonds of Series Y"), and other necessary actions have been duly authorized by the Board of Directors of the Company;

WHEREAS, the Company proposes to execute and deliver this Twenty-Eighth Supplemental Indenture (i) to provide for the issue of the bonds of Series Y and confirm the lien of the Indenture on the property referred to below, all as permitted by Section 1301 of the Mortgage Indenture and (ii) to provide for the future amendment and restatement of the Mortgage Indenture as provided in Section 1.09 hereof;

WHEREAS, the Company has purchased, constructed or otherwise acquired certain additional property not heretofore specifically described in the Indenture but which is and is intended to be subject to the lien thereof, and proposes specifically to subject such additional property to the lien of the Indenture at this time;

WHEREAS, all acts and things necessary to make the initial issue of the Series Y Bonds, when executed by the Company and authenticated by the Trustee and delivered as in the Mortgage Indenture provided, the legal, valid and binding obligations of the Company according to their terms and to make this Twenty-Eighth Supplemental Indenture a legal, valid and binding instrument for the security of the bonds, in accordance with its and their terms, have been done and performed, and the execution and delivery of this Twenty-Eighth Supplemental Indenture has in all respects been duly authorized;

NOW, THEREFORE, in consideration of the premises, and of the acceptance of said Series Y Bonds by the holder thereof, and of the sum of $1.00 duly paid by the Trustee to the Company, and of other good and valuable considerations, the receipt whereof is hereby acknowledged, and in confirmation of and supplementing the Mortgage Indenture as previously supplemented, amended and restated by said twenty-seven preceding supplemental indentures, and in performance of and compliance with the provisions thereof, said Public Service Company of New Hampshire, doing business as Eversource Energy, by these presents, does give, grant, bargain, sell, transfer, assign, pledge, mortgage and convey unto U.S. Bank Trust Company, National Association, as Trustee, as provided in the Mortgage Indenture, as previously supplemented, amended and restated and as supplemented by this Twenty-Eighth Supplemental Indenture, and its successor or successors in the trust thereby and hereby created, and its and their assigns, (a) all and singular the property, and rights and interests in property, described in the Mortgage Indenture and the twenty-seven preceding supplemental indentures and thereby conveyed, pledged, assigned, transferred and mortgaged, or intended so to be (said descriptions in said Mortgage Indenture being hereby made a part hereof to the same extent as if set forth herein at length), whether then or now owned or thereafter or hereafter acquired, except such of said properties or interests therein as may have been released or sold or disposed of in whole or in part as permitted by the provisions of the Mortgage Indenture, and (b) also, but without in any way limiting the generality of the foregoing, all the right, title and interest of the Company, now owned or hereafter acquired, in and to the rights, titles, interests and properties described or referred to in Schedule B hereto attached and hereby made a part hereof as fully as if set forth herein at length, in all cases not specifically reserved, excepted and excluded; the foregoing property, and rights and interests in property, being located in the following listed municipalities in New Hampshire and unincorporated areas in Coos County, New Hampshire, Oxford and York counties in the State of Maine, as well as in various municipalities in the State of Vermont, including the towns of Concord, Vermont and Waterford, Vermont, and elsewhere:

BELKNAP COUNTY — Alton, Barnstead, Belmont, Center Harbor, Gilford, Gilmanton, Laconia, Meredith, New Hampton, Sanbornton, Tilton;

CARROLL COUNTY — Albany, Brookfield, Chatham, Conway, Eaton, Effingham, Freedom, Madison, Moultonboro, Ossipee, Sandwich, Tamworth, Tuftonboro, Wakefield, Wolfeboro;

CHESHIRE COUNTY — Alstead, Chesterfield, Dublin, Fitzwilliam, Gilsum, Harrisville, Hinsdale, Jaffrey, Keene, Marlborough, Marlow, Nelson, Richmond, Rindge, Roxbury, Stoddard, Sullivan, Surry, Swanzey, Troy, Westmoreland, Winchester;

COOS COUNTY — Bean's Grant, Berlin, Cambridge, Carroll, Chandler's Purchase, Clarksville, Colebrook, Columbia, Crawford's Purchase, Dalton, Dummer, Errol, Gorham, Green's Grant, Jefferson, Lancaster, Martin's Location, Milan, Millsfield, Northumberland, Pinkham's Grant, Pittsburg, Randolph, Shelburne, Stark, Stewartstown, Stratford, Success, Thompson & Meserve's Purchase, Wentworth's Location, Whitefield;

GRAFTON COUNTY — Alexandria, Ashland, Bath, Bethlehem, Bridgewater, Bristol, Campton, Easton, Enfield, Franconia, Grafton, Hanover, Haverhill, Hebron, Holderness, Landaff, Lincoln, Lisbon, Littleton, Lyman, Lyme, Orange, Orford, Piermont, Plymouth, Rumney, Sugar Hill, Thornton, Woodstock;

HILLSBOROUGH COUNTY — Amherst, Antrim, Bedford, Bennington, Brookline, Deering, Francestown, Goffstown, Greenfield, Greenville, Hancock, Hillsborough, Hollis, Hudson, Litchfield, Lyndeborough, Manchester, Mason, Merrimack, Milford, Mont Vernon, Nashua, New Boston, New Ipswich, Pelham, Peterborough, Sharon, Temple, Weare, Wilton, Windsor;

MERRIMACK COUNTY — Allenstown, Andover, Boscawen, Bow, Bradford, Canterbury, Chichester, Concord, Danbury, Dunbarton, Epsom, Franklin, Henniker, Hill, Hooksett, Hopkinton, Loudon, Newbury, New London, Northfield, Pembroke, Pittsfield, Salisbury, Sutton, Warner, Webster, Wilmot;

ROCKINGHAM COUNTY — Auburn, Atkinson, Brentwood, Candia, Chester, Danville, Deerfield, Derry, East Kingston, Epping, Exeter, Fremont, Greenland, Hampstead, Hampton, Hampton Falls, Kensington, Kingston, Londonderry, New Castle, Newfields, Newington, Newmarket, Newton, North Hampton, Northwood, Nottingham, Portsmouth, Raymond, Rye, Sandown, Seabrook, South Hampton, Stratham, Windham;

STRAFFORD COUNTY — Barrington, Dover, Durham, Farmington, Lee, Madbury, Middleton, Milton, New Durham, Rochester, Rollinsford, Somersworth, Strafford;

SULLIVAN COUNTY — Charlestown, Claremont, Cornish, Croydon, Goshen, Grantham, Lempster, Newport, North Charleston, Plainfield, Springfield, Sunapee, Unity, Washington;

SUBJECT, HOWEVER, as to all of the foregoing, to the specific rights, privileges, liens, encumbrances, restrictions, conditions, limitations, covenants, interests, reservations, exceptions and otherwise as provided in the Mortgage Indenture, and in the descriptions in the schedules thereto and hereto and in the deeds or grants in said schedules referred to;

BUT SPECIFICALLY RESERVING, EXCEPTING AND EXCLUDING (as the same are reserved, excepted and excluded from the lien of the Mortgage Indenture) from this instrument and the grant, conveyance, mortgage, transfer and assignment herein contained, all right, title and interest of the Company, now owned or hereafter acquired, in and to the properties and rights specified in subclauses (a) to (m), both inclusive, of the paragraph beginning "BUT SPECIFICALLY RESERVING, EXCEPTING AND EXCLUDING..." which paragraph is part of the granting clauses of the Mortgage Indenture;

TO HAVE AND TO HOLD all said plant, premises, property, franchises and rights hereby conveyed, assigned, pledged or mortgaged, or intended so to be, unto the Trustee, its successor or successors in trust, and to its and their assigns forever;

BUT IN TRUST, NEVERTHELESS, with power of sale, for the equal pro rata benefit, security and protection of the owners of the bonds without any preference, priority or distinction whatever of any one bond over any other bond by reason of priority in the issue, sale or negotiation thereof, or otherwise;

PROVIDED, HOWEVER, and these presents are upon the condition, that if the Company shall pay or cause to be paid or make appropriate provision for the payment unto the holders of the bonds of the principal, premium, if any, and interest to become due thereon at the times and in the manner stipulated therein, and shall keep, perform and observe all and singular the covenants, agreements and provisions in the Indenture expressed to be kept, performed and observed by or on the part of the Company, then the Indenture and the estate and rights thereby and hereby granted shall, pursuant and subject to the provisions of Article 8 of the Mortgage Indenture, cease, determine and be void, but otherwise shall be and remain in full force and effect.

AND IT IS HEREBY COVENANTED, DECLARED AND AGREED, upon the trusts and for the purposes aforesaid, as set forth in the following covenants, agreements, conditions and provisions:

Article 1<br> SERIES Y BONDS

Section 1.01 <u>Designation; Amount</u>. The bonds of Series Y shall be designated "First Mortgage Bonds, Series Y, due 2028" and shall initially be authenticated in the aggregate principal amount of Three Hundred Million Dollars ($300,000,000). The initial issue of the bonds of Series Y may be effected upon compliance with the applicable provisions of the Mortgage Indenture. Additional bonds of Series Y, without limitation as to amount, having the same terms and conditions as the bonds of Series Y (except for the date of original issuance, the offering price date and, if applicable, the initial interest payment date) may also be issued by the Company without the consent of the holders of the bonds of Series Y, pursuant to a separate supplemental indenture related thereto. Such additional bonds of Series Y shall be part of the same series as the bonds of Series Y. The Trustee shall authenticate and deliver such additional bonds of Series Y at any time upon application by the Company and compliance with the applicable provisions of the Indenture.

Section 1.02 <u>Form of Series Y Bonds; Global Security; Depository for Global Securities</u>. The Series Y Bonds shall be issued only in fully registered form without coupons in minimum denominations of Two Thousand Dollars ($2,000) and integral multiples of One Thousand Dollars ($1,000).

The Series Y Bonds shall be initially represented by one or more global securities (the "Global Securities"). Each Global Security will be deposited with, or on behalf of, The Depository Trust Company, as depository ("DTC"), and registered in the name of Cede & Co., a nominee of DTC.

The Series Y Bonds shall be in substantially the form set forth in Schedule A attached hereto. The terms of the Series Y Bonds contained in such form are hereby incorporated herein by reference as though fully set forth in this place and are made a part of this Twenty-Eighth Supplemental Indenture.

Section 1.03 <u>Provisions of Series Y Bonds: Interest Accrual</u>. The Series Y Bonds shall mature on July 1, 2028 and shall bear interest at the rate of 4.40% per year, payable semiannually in arrears on January 1 and July 1 of each year (each, an "Interest Payment Date") (with the first Interest Payment Date to be January 1, 2026), with the final Interest Payment Date being July 1, 2028, until the Company's obligation in respect of the principal thereof shall be discharged. The Series Y Bonds shall be dated the date of authentication thereof by the Trustee and shall bear interest on the principal amount from, and including, the date of original issuance to, and excluding, the first Interest Payment Date and then from, and including, the immediately preceding Interest Payment Date to which interest has been paid or duly provided for to, but excluding, the next Interest Payment Date or the maturity date, as the case may be. Interest on the Series Y Bonds will be computed on the basis of a 360-day year of twelve 30-day months and, with respect to any period less than a full month, on the basis of actual number of days elapsed in such period. For example, the interest for a period running from the 15th day of one month to the 15th day of the next month would be calculated on the basis of one 30-day month.

The Series Y Bonds shall be payable both as to principal and interest at the corporate trust office of the Trustee at U.S. Bank Trust Company, National Association in Boston, Massachusetts or the corporate trust office of its successors, in any coin or currency of the United States of America which at the time of payment is legal tender for the payment of public and private debts. The interest on the Series Y Bonds shall be payable without presentation, and only to or upon the person in whose name the Series Y Bonds are registered on any record date. "Record date" with respect to any Interest Payment Date means the June 15 or December 15, as the case may be, next preceding such Interest Payment Date, or, if such June 15 or December 15 shall be a legal holiday or a day on which banking institutions are authorize pursuant to law to close and on which the corporate trust offices of the Trustee in Minnesota or Boston are not open for business, the next preceding day which shall not be a legal holiday or a day on which such institutions are so authorized to close. The Series Y Bonds shall be callable for redemption in whole or in part according to the terms and provisions provided in Section 1.05 below.

The Company has initially designated DTC as the depository for the Series Y Bonds. For as long as the Series Y Bonds or any portion thereof are in the form of a Global Security, and notwithstanding the previous paragraph, all payments of interest, principal and other amounts in respect of the Series Y Bonds shall be made to DTC or its nominee in accordance with its applicable policies and procedures, in the coin or currency specified above. So long as the Series Y Bonds are in the form of a Global Security, neither the Company nor the Trustee shall have any responsibility with respect to the policies and procedures of DTC, or any successor depository, or for any notices or other communications among DTC, its direct and indirect participants or beneficial owners of the Series Y Bonds.

Section 1.04 <u>Transfer and Exchange of Series Y Bonds</u>. So long as the Series Y Bonds are in the form of Global Securities, the Series Y Bonds may not be transferred except as a whole (1) by DTC to a nominee of DTC or (2) by a nominee of DTC to DTC or another nominee of DTC or (3) by DTC or any such nominee to a successor of DTC or a nominee of such successor. If (1) DTC is at any time unwilling or unable to continue as depository and a successor depository is not appointed by the Company within ninety days or (2) there shall have occurred and be continuing after any applicable grace periods an Event of Default under the Indenture with respect to the Series Y Bonds represented by such Global Security, the Company will issue certificated Series Y Bonds in definitive registered form in exchange for the Global Securities.

The Company may at any time and in its sole discretion determine not to have any Series Y Bonds in registered form represented by one or more Global Securities and, in such event, will issue certificated bonds in definitive form in exchange for the Global Securities representing the Series Y Bonds. In any such instance, an owner of a beneficial interest in the Global Securities will be entitled to physical delivery in definitive form of certificated bonds represented by the Global Securities equal in principal amount to such beneficial interest and to have such certificated bonds registered in its name.

In the event certificated bonds are issued in exchange for the Global Securities, the Series Y Bonds may be surrendered for registration of transfer as provided in Section 305 of the Indenture at the corporate trust office of the Trustee at U.S. Bank Trust Company, National Association in Boston, Massachusetts or the corporate trust offices of its successors, and may be surrendered at said office for exchange for a like aggregate principal amount of Series Y Bonds of other authorized denominations. No charge, except for taxes or other governmental charges, shall be made by the Company for any registration of transfer of Series Y Bonds or for the exchange of any Series Y Bonds for such bonds of other authorized denominations.

Section 1.05 <u>Redemption of the Series Y Bonds</u>. Prior to the maturity date of the Series Y Bonds, the Company may redeem the Series Y Bonds at its option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount of the Series Y Bonds to be redeemed and rounded to three decimal places) equal to the greater of:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) (a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined herein) plus 10 basis points less (b) interest accrued to the date of redemption, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) 100% of the principal amount of the Series Y Bonds to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

Section 1.06 <u>Definitions Applicable to Redemption Provisions</u>. The terms which follow, when used in this Twenty-Eighth Supplemental Indenture, shall have the following meanings:

"Treasury Rate" means, with respect to any redemption date, yield determined by the Company in accordance with the following two paragraphs.

The Treasury Rate shall be determined by the Company after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as "Selected Interest Rates (Daily) - H.15" (or any successor designation or publication) ("H.15") under the caption "U.S. government securities–Treasury constant maturities–Nominal" (or any successor caption or heading) ("H.15 TCM"). In determining the Treasury Rate, the Company shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the redemption date to the maturity date of the Series Y Bonds (the "Remaining Life"); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields – one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life – and shall interpolate to the maturity date of the Series Y Bonds on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 TCM is no longer published, the Company shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the maturity date of the Series Y Bonds. If there is no United States Treasury security maturing on the maturity date of the Series Y Bonds but there are two or more United States Treasury securities with a maturity date equally distant from the maturity date of the Series Y Bonds, one with a maturity date preceding the maturity date of the Series Y Bonds, and one with a maturity date following the maturity date of the Series Y Bonds the Company shall select the United States Treasury security with a maturity date preceding the maturity date of the Series Y Bonds. If there are two or more United States Treasury securities maturing on the maturity date of the Series Y Bonds or two or more United States Treasury securities meeting the criteria of the preceding sentence, the Company shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

The Company's actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error. The Trustee shall have no responsibility to calculate the redemption price.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary's procedures) at least 10 days but not more than 60 days before the redemption date to each holder of bonds to be redeemed.

In the case of a partial redemption, selection of the Series Y Bonds for redemption will be made by or pursuant to the applicable depositary's procedures. No bonds of a principal amount of $2,000 or less will be redeemed in part. If any Series Y Bond is to be redeemed in part only, the notice of redemption that relates to the Series Y Bond will state the portion of the principal amount of the Series Y Bond to be redeemed. A new Series Y Bond in a principal amount equal to the unredeemed portion of the Series Y Bond will be issued in the name of the holder of the Series Y Bond upon surrender for cancellation of the original Series Y Bond. For so long as the Series Y Bonds are held by DTC (or another depositary), the redemption of the Series Y Bonds shall be done in accordance with the policies and procedures of the depositary.

On and after the redemption date interest will cease to accrue on the Series Y Bonds or portions thereof called for redemption. Prior to any redemption date, the Company is required to deposit with a paying agent money sufficient to pay the redemption price of and accrued interest on the Series Y Bonds to be redeemed on such date.

Any redemption may, at the Company's discretion, be subject to one or more conditions precedent, including, but not limited to, the completion or occurrence of a related transaction or event, as the case may be, and any notice of redemption made in connection with a related transaction or event may, at the Company's discretion, be given prior to the completion or the occurrence thereof. If such redemption is subject to satisfaction of one or more conditions precedent, such notice will describe each such condition, and if applicable, will state that, at the Company's discretion, the redemption date may be delayed until such time (including more than 60 days after the date the notice of redemption was mailed or delivered, including by electronic transmission) as any or all such conditions are satisfied (or waived by the Company in its sole discretion), or that such redemption may not occur and such notice may be rescinded in the event that any or all such conditions are not satisfied (or waived by the Company in its sole discretion) by the redemption date, or by the redemption date as so delayed, or that such notice may be rescinded at any time in the Company's discretion if in its good faith judgment any or all of such conditions will not be satisfied. If any such condition precedent has not been satisfied, the Company shall provide written notice to the Trustee prior to the close of business on the second business day prior to the redemption date. Upon receipt of such notice, the notice of redemption shall be rescinded or delayed, and the redemption of the Series Y Bonds shall be rescinded or delayed as provided in such notice.

Section 1.07 <u>Effect of Event of Default</u>. If an Event of Default shall have occurred and be continuing, the principal of the Series Y Bonds may be declared due and payable in the manner and with the effect provided in the Indenture.

Section 1.08 <u>Payment Date Not a Business Day</u>. If any Redemption Date, any Interest Payment Date or the maturity date for principal, premium or interest with respect to the Series Y Bonds shall be (i) a Sunday or a legal holiday, or (ii) a day on which banking institutions are authorized pursuant to law to close and on which the corporate trust offices of the Trustee in Minnesota or Massachusetts are not open for business, then the payment thereof may be made on the next succeeding day not a day specified in (i) or (ii) with the same force and effect as if made on the specified payment date and no interest shall accrue for the period after the specified payment date.

Section 1.09 <u>Consent to Amendment and Restatement of Mortgage Indenture</u>. Each holder of a Series Y Bond, solely by virtue of its acquisition thereof, including as an owner of a book-entry interest therein, shall have and be deemed to have consented, without the need for any further action or consent by such holder, to the amendment and restatement of the Mortgage Indenture in substantially the form set forth in Schedule C appended to the Eighteenth Supplemental Indenture dated as of May 1, 2011, and all amendments and Supplemental Indentures thereto.

Article 2<br> MISCELLANEOUS PROVISIONS

Section 2.01 <u>Recitals</u>. The recitals in this Twenty-Eighth Supplemental Indenture shall be taken as recitals by the Company alone, and shall not be considered as made by or as imposing any obligation or liability upon the Trustee, nor shall the Trustee be held responsible for the legality or validity of this Twenty-Eighth Supplemental Indenture, and the Trustee makes no covenants or representations, and shall not be responsible, as to or for the effect, authorization, execution, delivery or recording of this Twenty-Eighth Supplemental Indenture, except as expressly set forth in the Mortgage Indenture. The Trustee shall not be taken impliedly to waive by this Twenty-Eighth Supplemental Indenture any right it would otherwise have.

Section 2.02 <u>Benefits of Twenty-Eighth Supplemental Indenture</u>. Nothing in this Twenty-Eighth Supplemental Indenture, expressed or implied, is intended or shall be construed to confer upon, or give to, any person, firm or corporation, other than the parties hereto and the holders of the Series Y Bonds, any right, remedy or claim under or by reason of the Indenture or any covenant, condition or stipulation thereof; and the covenants, stipulations and agreements in the Indenture contained are and shall be for the sole and exclusive benefit of the parties hereto, their successors and assigns, and holders of the bonds.

Section 2.03 <u>Effect of Twenty-Eighth Supplemental Indenture</u>. This Twenty-Eighth Supplemental Indenture is executed, shall be construed as and is expressly stated to be an indenture supplemental to the Mortgage Indenture and shall form a part of the Indenture; and the Mortgage Indenture, as supplemented and amended by this Twenty-Eighth Supplemental Indenture, is hereby confirmed and adopted by the Company as its obligation. All terms used in this Twenty-Eighth Supplemental Indenture shall be taken to have the meaning specified in the Mortgage Indenture, except in cases where the context clearly indicates otherwise.

Section 2.04 <u>Termination</u>. This Twenty-Eighth Supplemental Indenture shall become void when the Indenture shall be void.

Section 2.05 <u>Trust Indenture Act</u>. If and to the extent that any provision of this Twenty-Eighth Supplemental Indenture limits, qualifies or conflicts with any of the applicable provisions of Sections 310 to 317, inclusive, of the Trust Indenture Act of 1939, as amended, such required provision shall control.

Section 2.06 <u>Counterparts</u>. This Twenty-Eighth Supplemental Indenture may be simultaneously executed in any number of counterparts, each of which shall be deemed an original; and all said counterparts executed and delivered, each as an original, shall constitute but one and the same instrument, which shall for all purposes be sufficiently evidenced by any such original counterpart.

Section 2.07 <u>Notices</u>. Any notice to the Trustee under any provision of this Twenty-Eighth Supplemental Indenture shall be sufficiently given if served personally upon a responsible officer of the Trustee or mailed by registered or certified mail, postage prepaid, addressed to the Trustee at its corporate trust office, which is U.S. Bank Trust Company, National Association, One Federal Street, Boston Massachusetts 02110 as of the date hereof. The Trustee shall notify the Company from time to time of any change in the address of its corporate trust office.

Section 2.08 <u>Definitions</u>. Except to the extent otherwise defined herein, the use of the terms and expressions herein is in accordance with the definitions, uses and construction contained in the Mortgage Indenture and the form of Series Y Bond attached hereto as <u>Schedule A</u>.

[The remainder of this page left blank intentionally.]

IN WITNESS WHEREOF, PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE, doing business as EVERSOURCE ENERGY, has caused this instrument to be executed and its corporate seal to be hereto affixed, by its officers, thereunto duly authorized, and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION has caused this instrument to be executed by its officers thereunto duly authorized, all effective as of the day and year first above written and actually executed on the date of acknowledgement indicated below.

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| | |
|:---|:---|
| **PUBLIC SERVICE COMPANY <br> OF NEW HAMPSHIRE, doing business as EVERSOURCE ENERGY** | **PUBLIC SERVICE COMPANY <br> OF NEW HAMPSHIRE, doing business as EVERSOURCE ENERGY** |
| By: | /s/ Emilie G. O'Neil |
|  | Emilie G. O'Neil |
|  | Assistant Treasurer-Corporate Finance and Cash Management |

---

---

| |
|:---|
| CORPORATE SEAL |
| Attest: |
| /s/ Florence J. Iacono |
| Florence J. Iacono |
| Secretary |

---

COMMONWEALTH OF MASSACHUSETTS) ) ss: Norfolk <br> COUNTY OF NORFOLK)

Then personally appeared before me Emilie G. O'Neil, Assistant Treasurer-Corporate Finance and Cash Management, and Florence J. Iacono, Secretary, of Public Service Company of New Hampshire, doing business as Eversource Energy, a New Hampshire corporation, and severally acknowledged the foregoing instrument to be their free act and deed in their said capacities and the free act and deed of said corporation.

Witness my hand and notarial seal this 5th day of June, 2025, at Westwood, Massachusetts.

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| | |
|:---|:---|
| Name: | /s/ Paula M. Guerard |
| Notary Public: Paula M. Guerard | Notary Public: Paula M. Guerard |
| My Commission Expires: 12/16/27 | My Commission Expires: 12/16/27 |

---

---

| | |
|:---|:---|
| **U.S. BANK TRUST COMPANY, <br> NATIONAL ASSOCIATION** | **U.S. BANK TRUST COMPANY, <br> NATIONAL ASSOCIATION** |
| as Trustee as aforesaid | as Trustee as aforesaid |
| By: | /s/ Ivy L. Wegener |
|  | Ivy L. Wegener |
|  | Vice President |

---

---

| |
|:---|
| Attest: |
| /s/ David Doucette |
| Name: David Doucette |
| Title: Vice President |

---

COMMONWEALTH OF MASSACHUSETTS) ) ss: Suffolk <br> COUNTY OF SUFFOLK)

Then personally appeared before me, Ivy L. Wegener, Vice President of U.S. Bank Trust Company, National Association, a national banking association, and acknowledged the foregoing instrument to be his/her free act and deed in his/her said capacity and the free act and deed of said association.

Witness my hand and notarial seal this 9th day of June, 2025, at Hartford, Massachusetts.

---

| | |
|:---|:---|
| Name: | /s/ Steven J. Gomes |
| Notary Public | Notary Public |
| My Commission Expires 4/6/29 | My Commission Expires 4/6/29 |

---

SCHEDULE A<br> [FORM OF FACE OF SERIES Y BONDS]

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY OR A NOMINEE OF A DEPOSITORY. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITORY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND HEREIN, AND NO TRANSFER OF THIS SECURITY (OTHER THAN A TRANSFER OF THIS SECURITY AS A WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITORY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES.

Unless this Global Security is presented by an authorized representative of The Depository Trust Company, a New York corporation ("DTC"), to Public Service Company of New Hampshire, doing business as Eversource Energy, or its agent for registration of transfer, exchange, or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest herein.

PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,

doing business as EVERSOURCE ENERGY,

FIRST MORTGAGE BOND, SERIES Y

PRINCIPAL DUE 2028

CUSIP No. 744538 AH2

---

| | |
|:---|:---|
| No. 1 | $300000000 |

---

FOR VALUE RECEIVED, PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE, doing business as Eversource Energy, a corporation organized and existing under the laws of the State of New Hampshire (hereinafter called the "Company", which term includes any successor corporation under the Indenture), hereby promises to pay to Cede & Co., or registered assigns, subject to the conditions set forth herein, the principal sum of Three Hundred Million Dollars ($300,000,000), on July 1, 2028, and to pay interest on said sum semiannually in arrears, on January 1 and July 1 in each year (each, an "Interest Payment Date") with the first Interest Payment Date being January 1, 2026, and the final Interest Payment Date being July 1, 2028, at the rate of 4.40% per annum, until the Company's obligation with respect to said principal sum shall be paid or made available for payment.

This Series Y Bond shall bear interest as aforesaid from, and including, the date of original issuance to, and excluding, the first Interest Payment Date and then from, and including, the immediately preceding Interest Payment Date to which interest has been paid or duly provided for to, but excluding, the next Interest Payment Date or the maturity date, as the case may be. The amount of interest payable will be computed on the basis of a 360-day year consisting of twelve 30-day months and, with respect to any period less than a full month, on the basis of actual number of days elapsed in such period. For example, the interest for a period running from the 15th day of one month to the 15th day of the next month would be calculated on the basis of one 30-day month.

In any case where any Interest Payment Date, the maturity date or any Redemption Date is not a Business Day, then payment of principal and interest, if any, or principal and premium, if any, payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay), in each case with the same force and effect as if made on such date. A "Business Day" shall mean any day, except a (i) Sunday or a legal holiday, or (ii) a day on which banking institutions are authorized pursuant to law to close and on which the corporate trust offices of the Trustee in Minnesota or Massachusetts are not open for business.

Payment of the principal of and any interest on this Series Y Bond will be made at the corporate trust office of the Trustee at U.S. Bank Trust Company, National Association in Boston, Massachusetts or the corporate trust office of its successors, in any coin or currency of the United States of America which at the time of payment is legal tender for the payment of public and private debts. The interest on this Series Y Bond shall be payable without presentation, and only to or upon the person in whose name the Series Y Bonds are registered on any record date. "Record date" with respect to any Interest Payment Date means the June 15 or December 15, as the case may be, next preceding such Interest Payment Date, or, if such June 15 or December 15 shall be a legal holiday or a day on which banking institutions are authorize pursuant to law to close and on which the corporate trust offices of the Trustee in Minnesota or Massachusetts are not open for business, the next preceding day which shall not be a legal holiday or a day on which such institutions are so authorized to close.

Reference is hereby made to the further provisions of this Series Y Bond set forth on the reverse hereof, including without limitation provisions in regard to the redemption and the registration of transfer and exchangeability of this Series Y Bond, and such further provisions shall for all purposes have the same effect as though fully set forth in this place.

As set forth in the Supplemental Indenture establishing the terms and series of the Bonds of this series, each holder of a Series Y Bond, solely by virtue of its acquisition thereof, including as an owner of a book-entry interest therein, shall have and be deemed to have consented, without the need for any further action or consent by such holder, to the amendment and restatement of the Mortgage Indenture in substantially the form set forth in Schedule C appended to the Eighteenth Supplemental Indenture dated as of May 1, 2011.

This Series Y Bond shall not become or be valid or obligatory until the certificate of authentication hereon shall have been signed by U.S. Bank Trust Company, National Association (hereinafter with its successors as defined in the Indenture (as defined on the reverse hereof), generally called the Trustee), or by such a successor.

IN WITNESS WHEREOF, Public Service Company of New Hampshire, doing business as Eversource Energy, has caused this Series Y Bond to be executed in its corporate name and on its behalf by its Assistant Treasurer-Corporate Finance and Cash Management by her signature or a facsimile thereof, and its corporate seal to be affixed or imprinted hereon and attested by the manual or facsimile signature of its Secretary.

Dated as of ____________________________<u> </u>

**PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,<br> doing business as EVERSOURCE ENERGY**

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| | |
|:---|:---|
| By: |  |
|  | Emilie G. O'Neil |
|  | Assistant Treasurer-Corporate Finance and Cash Management |
| Attest: | Attest: |
| Florence J. Iacono | Florence J. Iacono |
| Secretary | Secretary |

---

[FORM OF TRUSTEE'S CERTIFICATE]

This Series Y Bond is one of the bonds described in the within mentioned Indenture.

**U.S. BANK TRUST COMPANY, NATIONAL<br> ASSOCIATION, TRUSTEE**

By:   <br> Name: <br> Title: Authorized Signatory

[FORM OF REVERSE OF SERIES Y BOND]

PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,

doing business as EVERSOURCE ENERGY,

First Mortgage Bond, Series Y, due 2028

This Series Y Bond is one of a series of bonds known as the "First Mortgage Bonds, Series Y, due 2028" of the Company, initially limited to Three Hundred Million Dollars ($300,000,000) in aggregate principal amount, and issued under and pursuant to a First Mortgage Indenture between the Company and U.S. Bank Trust Company, National Association as successor in interest to U.S. Bank National Association, successor to Wachovia Bank, National Association and by merger to First Union National Bank, formerly known as First Fidelity Bank, National Association, New Jersey, successor to Bank of New England, National Association (formerly known as New England Merchants National Bank), and to New Bank of New England, National Association, as Trustee, dated as of August 15, 1978, as amended, and pursuant to which U.S. Bank Trust Company, National Association is now Successor Trustee (said First Mortgage Indenture as amended and restated on June 1, 2011, being hereinafter generally called the "Mortgage Indenture" and, together with each and every prior indenture supplemental thereto and each and every other instrument, including the Twenty-Eighth Supplemental Indenture, dated as of June 1, 2025, supplemental to the Mortgage Indenture, as the "Indenture") and together with all bonds of all series now outstanding or hereafter issued under the Indenture being equally and ratably secured (except as any sinking or other analogous fund, established in accordance with the provisions of the Indenture, may afford additional security for the bonds of any particular series) by the Indenture, to which Indenture (executed counterparts of which are on file at the corporate trust office of the Trustee in Boston, Massachusetts) reference is hereby made for a description of the nature and extent of the security, the rights thereunder of the holders of bonds issued and to be issued thereunder, the rights, duties and immunities thereunder of the Trustee, the rights and obligations thereunder of the Company, and the terms and conditions upon which Bonds of this series, and bonds of other series, are issued and are to be issued; but neither the foregoing reference to the Indenture nor any provision of this Series Y Bond or of the Indenture shall affect or impair the obligation of the Company, which is absolute, unconditional and unalterable, to pay at the maturities herein provided the principal of and interest on this Series Y Bond as herein provided.

The Series Y Bonds shall be initially issued in the form of one or more global securities (the "Global Securities"). Each Global Security will be deposited with, or on behalf of, DTC and registered in the name of Cede & Co., a nominee of DTC. For as long as this Series Y Bond or any portion hereof is in the form of a Global Security, and notwithstanding anything else contained in this Series Y Bond, all payments of interest, principal and other amounts in respect of this Series Y Bond shall be made to DTC or its nominee in accordance with its applicable policies and procedures, in the coin or currency specified above.

In the event certificated bonds in definitive form are issued in exchange for the Global Securities they are issuable only in registered form without coupons in minimum denominations of $2,000 and integral multiples of $1,000.

The Series Y Bonds, while in the form of Global Securities, may not be transferred except as a whole (1) by DTC to a nominee of DTC or (2) by a nominee of DTC to DTC or another nominee of DTC or (3) by DTC or any such nominee to a successor of DTC or a nominee of such successor. If (1) DTC is at any time unwilling or unable to continue as depository and a successor depository is not appointed by the Company within ninety days or (2) there shall have occurred and be continuing after any applicable grace periods an Event of Default under the Indenture with respect to the Series Y Bonds represented by such Global Security, the Company will issue certificated bonds in definitive registered form in exchange for the Global Securities representing the Series Y Bonds.

The Company may at any time and in its sole discretion determine not to have any Series Y Bonds in registered form represented by one or more Global Securities and, in such event, will issue certificated bonds in definitive form in exchange for the Global Securities representing the Series Y Bonds. In any such instance, an owner of a beneficial interest in the Global Securities will be entitled to physical delivery in definitive form of certificated bonds represented by the Global Securities equal in principal amount to such beneficial interest and to have such certificated bonds registered in its name.

In the event certificated bonds are issued in exchange for the Global Securities, the Series Y Bonds may be surrendered for registration of transfer as provided in Section 305 of the Mortgage Indenture at the corporate trust office of the Trustee at U.S. Bank Trust Company, National Association in Boston, Massachusetts or the corporate trust offices of its successors, and may be surrendered at said office for exchange for a like aggregate principal amount of Series Y Bonds of other authorized denominations. No charge, except for taxes or other governmental charges, shall be made by the Company for any registration of transfer of Series Y Bonds or for the exchange of any Series Y Bonds for such bonds of other authorized denominations.

Prior to due presentment for registration of transfer of this Bond, the Company and the Trustee may deem and treat the registered owner hereof as the absolute owner hereof, whether or not such Series Y Bond shall be overdue, for the purpose of receiving payment and for all other purposes, and neither the Company nor the Trustee shall be affected by any notice to the contrary. Neither the failure to give any notice nor any defect in any notice given to the holder of the Global Securities or Series Y Bonds not represented by a Global Security, will affect the sufficiency of any notice given to any other holder.

As provided in the Twenty-Eighth Supplemental Indenture, this bond shall be subject to redemption prior to maturity as follows:

Prior to the maturity date of the Series Y Bonds, the Company may redeem the Series Y Bonds at its option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount of the Series Y Bonds to be redeemed and rounded to three decimal places) equal to the greater of:

(1)(a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined herein) plus 10 basis points less (b) interest accrued to the date of redemption, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) 100% of the principal amount of the Series Y Bonds to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

"Treasury Rate" means, with respect to any redemption date, yield determined by the Company in accordance with the following two paragraphs.

The Treasury Rate shall be determined by the Company after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as "Selected Interest Rates (Daily) - H.15" (or any successor designation or publication) ("H.15") under the caption "U.S. government securities–Treasury constant maturities–Nominal" (or any successor caption or heading) ("H.15 TCM"). In determining the Treasury Rate, the Company shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the redemption date to the maturity date of the Series Y Bonds (the "Remaining Life"); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields – one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life – and shall interpolate to the maturity date of the Series Y Bonds on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 TCM is no longer published, the Company shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the maturity date of the Series Y Bonds. If there is no United States Treasury security maturing on the maturity date of the Series Y Bonds but there are two or more United States Treasury securities with a maturity date equally distant from the maturity date of the Series Y Bonds, one with a maturity date preceding the maturity date of the Series Y Bonds, and one with a maturity date following the maturity date of the Series Y Bonds the Company shall select the United States Treasury security with a maturity date preceding the maturity date of the Series Y Bonds. If there are two or more United States Treasury securities maturing on the maturity date of the Series Y Bonds or two or more United States Treasury securities meeting the criteria of the preceding sentence, the Company shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

The Company's actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error. The Trustee shall have no responsibility to calculate the redemption price.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary's procedures) at least 10 days but not more than 60 days before the redemption date to each holder of bonds to be redeemed.

In the case of a partial redemption, selection of the Series Y Bonds for redemption will be made by or pursuant to the applicable depositary's procedures. No bonds of a principal amount of $2,000 or less will be redeemed in part. If any Series Y Bond is to be redeemed in part only, the notice of redemption that relates to the Series Y Bond will state the portion of the principal amount of the Series Y Bond to be redeemed. A new Series Y Bond in a principal amount equal to the unredeemed portion of the Series Y Bond will be issued in the name of the holder of the Series Y Bond upon surrender for cancellation of the original Series Y Bond. For so long as the Series Y Bonds are held by DTC (or another depositary), the redemption of the Series Y Bonds shall be done in accordance with the policies and procedures of the depositary.

On and after the redemption date interest will cease to accrue on the Series Y Bonds or portions thereof called for redemption. Prior to any redemption date, the Company is required to deposit with a paying agent money sufficient to pay the redemption price of and accrued interest on the Series Y Bonds to be redeemed on such date.

Any redemption may, at the Company's discretion, be subject to one or more conditions precedent, including, but not limited to, the completion or occurrence of a related transaction or event, as the case may be, and any notice of redemption made in connection with a related transaction or event may, at the Company's discretion, be given prior to the completion or the occurrence thereof. If such redemption is subject to satisfaction of one or more conditions precedent, such notice will describe each such condition, and if applicable, will state that, at the Company's discretion, the redemption date may be delayed until such time (including more than 60 days after the date the notice of redemption was mailed or delivered, including by electronic transmission) as any or all such conditions are satisfied (or waived by the Company in its sole discretion), or that such redemption may not occur and such notice may be rescinded in the event that any or all such conditions are not satisfied (or waived by the Company in its sole discretion) by the redemption date, or by the redemption date as so delayed, or that such notice may be rescinded at any time in the Company's discretion if in its good faith judgment any or all of such conditions will not be satisfied. If any such condition precedent has not been satisfied, the Company shall provide written notice prior to the close of business on the business day immediately prior to the redemption date. Upon receipt of such notice, the notice of redemption shall be rescinded or delayed, and the redemption of the Series Y Bonds shall be rescinded or delayed as provided in such notice.

If this bond is called for redemption in whole or in part and payment is duly provided as specified in the Indenture, this bond, or the part thereof so called, shall cease to be entitled to the security of the Indenture, and from and after the date fixed in the call for such redemption, interest shall cease to accrue on this bond, or on such part so called; and if less than the whole principal amount hereof shall be called, the registered owner hereof shall, in addition to the sums payable on account of the part called, be entitled, at his option, to receive on surrender hereof one or more bonds of this series, of an aggregate principal amount equal to that part of the principal amount hereof not called and paid, or to present this bond for the notation hereon by the Trustee (or to make such notation in accordance with an agreement for payment of principal filed with the Trustee as provided in this bond) of the payment of the part of the principal amount hereof then called and paid.

If an Event of Default shall have occurred and be continuing, the principal of the Series Y Bonds may be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture contains provisions permitting the Company and the Trustee to effect, by supplemental indenture, certain modifications of the Indenture without any consent of the holders of the bonds, and to effect certain other modifications of the Indenture, and of the rights of the holders of the bonds, with the consent of the holders of not less than a majority in aggregate principal amount of all bonds issued under the Indenture at the time outstanding, or in case one or more, but less than all, of the Series of said bonds then outstanding are affected, with the consent of the holders of not less than a majority in aggregate principal amount of said outstanding bonds of each Series affected.

No reference herein to the Indenture and no provision herein or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Series Y Bond at the time, place and rate, and in the coin or currency, herein prescribed.

No recourse shall be had for the payment of the principal of or premium, if any, or interest on this Series Y Bond, or for any claim based hereon, or otherwise in respect hereof or of the Indenture, to or against any incorporator or against any stockholder, director or officer, past, present or future, as such, of the Company or any affiliate of the Company, or of any predecessor or successor company, either directly or through the Company, or such predecessor or successor company or any trustee, receiver or assignee or otherwise, under any constitution, or statute or rule of law, or by the enforcement of any assessment or penalty, or otherwise, all such liability of incorporators, stockholders, directors or officers, as such, being waived and released by the holder and owner hereof by the acceptance of this Series Y Bond and as part of the consideration for the issuance hereof and being likewise waived and released by the terms of the Indenture.

[END OF FORM OF REVERSE OF SERIES Y BOND]

SCHEDULE B

Description of Easements

Acquired

Since April 1, 2024

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| | | | | |
|:---|:---|:---|:---|:---|
| Book-Page | Grantor | Municipality | Date | Registry |
| 3876/80 | State of New Hampshire, Department of Transportation | Hooksett & Bow | 12/4/2024 | Merrimack |
| 9846/215 | Hudson Congregation of Jehovah's Witnesses | Hudson | 1/10/2025 | Hillsborough |
| 6546/2392 | State of New Hampshire, Department of Transportation | Londonderry | 5/9/2024 | Rockingham |
| 9807/345 | City of Nashua | Nashua | 10/1/2024 | Hillsborough |
| 1665/469 | Gorham Land Company | Gorham | 11/19/2024 | Coos |
| 4905/439 | Donald Johnson, Jr. and Cheryl Johnson | Campton | 11/21/2024 | Grafton |
| 9768/1052 | Town of Litchfield | Litchfield | 4/17/2024 | Hillsborough |
| 4913/52 | Great River Hydro, LLC | Littleton | 10/15/2024 | Grafton |
| 1677/857 | David & Margareth Day- Day Revocable Trust | Gorham | 4/10/2025 | Coos |
| 3859/1134 | Dead Water LLC | Pembroke | 6/20/2024 | Merrimack |
| 3862/2246 | Dead Water LLC | Franklin | 7/26/2024 | Merrimack |
| 4865/1 | Patricia Correnti Brown Living Trust, u/t/a dated August 17, 2009 | Bethlehem | 5/8/2024 | Grafton |
| 3851/872 | Town of Canterbury | Canterbury | 03/14/2024 | Merrimack<br>|
| 4905/759 | Dead Water LLC | Bridgewater | 11/22/2024 | Grafton |
| 3870/2335 | Nancy L. Bates & Aisha Karen Khan, as Trustees of the Bates-Khan Real Estate Trust | Wilmot | 10/15/2024 | Merrimack |
| 6537/2298 | Luke Zagar & Michelle Zagar | Deerfield | 03/21/2024 | Rockingham |
| 5184/412 | Peggy Li | Rochester | 05/15/2024 | Strafford |

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ENDORSEMENT

U.S. Bank Trust Company, National Association, Trustee, being the mortgagee in the foregoing Supplemental Indenture, hereby consents to the cutting of any timber standing upon any of the lands covered by said Supplemental Indenture and to the sale of any such timber so cut and of any personal property covered by said Supplemental Indenture to the extent, but only to the extent, that such sale is permitted under the provisions of the Mortgage Indenture as supplemented by the Twenty-Eighth Supplemental Indenture dated as of June 1, 2025.

**U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION,**

as Trustee as aforesaid

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| | |
|:---|:---|
| By: | /s/ Ivy L. Wegener |
|  | Ivy L. Wegener |
|  | Vice President |

---

COMMONWEALTH OF MASSACHUSETTS) ) ss: Suffolk <br> COUNTY OF SUFFOLK)

Then personally appeared before me, Ivy L. Wegener, Vice President of U.S. Bank Trust Company, National Association, a national banking association, and acknowledged the foregoing instrument to be his free act and deed in his said capacity and the free act and deed of said association.

Witness my hand and notarial seal this 9th day of June, 2025, at Suffolk, Massachusetts.

---

| | |
|:---|:---|
| Name: | /s/ Steven J. Gomes |
| Notary Public | Notary Public |
| My Commission Expires 4/6/29 | My Commission Expires 4/6/29 |

---

## Exhibit 4.2

**Exhibit 4.2**

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY OR A NOMINEE OF A DEPOSITORY. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITORY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND HEREIN, AND NO TRANSFER OF THIS SECURITY (OTHER THAN A TRANSFER OF THIS SECURITY AS A WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITORY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES.

Unless this Global Security is presented by an authorized representative of The Depository Trust Company, a New York corporation ("DTC"), to Public Service Company of New Hampshire, doing business as Eversource Energy, or its agent for registration of transfer, exchange, or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest herein.

PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,

doing business as EVERSOURCE ENERGY,

FIRST MORTGAGE BOND, SERIES Y

PRINCIPAL DUE 2028

CUSIP No. 744538 AH2

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| No. 1 | $300000000 |

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FOR VALUE RECEIVED, PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE, doing business as Eversource Energy, a corporation organized and existing under the laws of the State of New Hampshire (hereinafter called the "Company", which term includes any successor corporation under the Indenture), hereby promises to pay to Cede & Co., or registered assigns, subject to the conditions set forth herein, the principal sum of Three Hundred Million Dollars ($300,000,000), on July 1, 2028, and to pay interest on said sum semiannually in arrears, on January 1 and July 1 in each year (each, an "Interest Payment Date") with the first Interest Payment Date being January 1, 2026, and the final Interest Payment Date being July 1, 2028, at the rate of 4.40% per annum, until the Company's obligation with respect to said principal sum shall be paid or made available for payment.

This Series Y Bond shall bear interest as aforesaid from, and including, the date of original issuance to, and excluding, the first Interest Payment Date and then from, and including, the immediately preceding Interest Payment Date to which interest has been paid or duly provided for to, but excluding, the next Interest Payment Date or the maturity date, as the case may be. The amount of interest payable will be computed on the basis of a 360-day year consisting of twelve 30-day months and, with respect to any period less than a full month, on the basis of actual number of days elapsed in such period. For example, the interest for a period running from the 15th day of one month to the 15th day of the next month would be calculated on the basis of one 30-day month.

In any case where any Interest Payment Date, the maturity date or any Redemption Date is not a Business Day, then payment of principal and interest, if any, or principal and premium, if any, payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay), in each case with the same force and effect as if made on such date. A "Business Day" shall mean any day, except a (i) Sunday or a legal holiday, or (ii) a day on which banking institutions are authorized pursuant to law to close and on which the corporate trust offices of the Trustee in Minnesota or Massachusetts are not open for business.

Payment of the principal of and any interest on this Series Y Bond will be made at the corporate trust office of the Trustee at U.S. Bank Trust Company, National Association in Boston, Massachusetts or the corporate trust office of its successors, in any coin or currency of the United States of America which at the time of payment is legal tender for the payment of public and private debts. The interest on this Series Y Bond shall be payable without presentation, and only to or upon the person in whose name the Series Y Bonds are registered on any record date. "Record date" with respect to any Interest Payment Date means the June 15 or December 15, as the case may be, next preceding such Interest Payment Date, or, if such June 15 or December 15 shall be a legal holiday or a day on which banking institutions are authorize pursuant to law to close and on which the corporate trust offices of the Trustee in Minnesota or Massachusetts are not open for business, the next preceding day which shall not be a legal holiday or a day on which such institutions are so authorized to close.

Reference is hereby made to the further provisions of this Series Y Bond set forth on the reverse hereof, including without limitation provisions in regard to the redemption and the registration of transfer and exchangeability of this Series Y Bond, and such further provisions shall for all purposes have the same effect as though fully set forth in this place.

As set forth in the Supplemental Indenture establishing the terms and series of the Bonds of this series, each holder of a Series Y Bond, solely by virtue of its acquisition thereof, including as an owner of a book-entry interest therein, shall have and be deemed to have consented, without the need for any further action or consent by such holder, to the amendment and restatement of the Mortgage Indenture in substantially the form set forth in Schedule C appended to the Eighteenth Supplemental Indenture dated as of May 1, 2011.

This Series Y Bond shall not become or be valid or obligatory until the certificate of authentication hereon shall have been signed by U.S. Bank Trust Company, National Association (hereinafter with its successors as defined in the Indenture (as defined on the reverse hereof), generally called the Trustee), or by such a successor.

IN WITNESS WHEREOF, Public Service Company of New Hampshire, doing business as Eversource Energy, has caused this Series Y Bond to be executed in its corporate name and on its behalf by its Assistant Treasurer-Corporate Finance and Cash Management by her signature or a facsimile thereof, and its corporate seal to be affixed or imprinted hereon and attested by the manual or facsimile signature of its Secretary.

Dated as of June 24, 2025

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|:---|:---|
| **PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,<br> doing business as EVERSOURCE ENERGY** | **PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,<br> doing business as EVERSOURCE ENERGY** |
| By: |  |
|  | Emilie G. O'Neil |
|  | Assistant Treasurer-Corporate Finance and Cash Management |
| Attest: | Attest: |
| Florence J. Iacono | Florence J. Iacono |
| Secretary | Secretary |

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This Series Y Bond is one of the bonds described in the within mentioned Indenture.

**U.S. BANK TRUST COMPANY, NATIONAL <br> ASSOCIATION, TRUSTEE**

By:   <br> Name: Ivy Wegener <br> Title: Authorized Signatory

PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE,

doing business as EVERSOURCE ENERGY,

First Mortgage Bond, Series Y, due 2028

This Series Y Bond is one of a series of bonds known as the "First Mortgage Bonds, Series Y, due 2028" of the Company, initially limited to Three Hundred Million Dollars ($300,000,000) in aggregate principal amount, and issued under and pursuant to a First Mortgage Indenture between the Company and U.S. Bank Trust Company, National Association as successor in interest to U.S. Bank National Association, successor to Wachovia Bank, National Association and by merger to First Union National Bank, formerly known as First Fidelity Bank, National Association, New Jersey, successor to Bank of New England, National Association (formerly known as New England Merchants National Bank), and to New Bank of New England, National Association, as Trustee, dated as of August 15, 1978, as amended, and pursuant to which U.S. Bank Trust Company, National Association is now Successor Trustee (said First Mortgage Indenture as amended and restated on June 1, 2011, being hereinafter generally called the "Mortgage Indenture" and, together with each and every prior indenture supplemental thereto and each and every other instrument, including the Twenty-Eighth Supplemental Indenture, dated as of June 1, 2025, supplemental to the Mortgage Indenture, as the "Indenture") and together with all bonds of all series now outstanding or hereafter issued under the Indenture being equally and ratably secured (except as any sinking or other analogous fund, established in accordance with the provisions of the Indenture, may afford additional security for the bonds of any particular series) by the Indenture, to which Indenture (executed counterparts of which are on file at the corporate trust office of the Trustee in Boston, Massachusetts) reference is hereby made for a description of the nature and extent of the security, the rights thereunder of the holders of bonds issued and to be issued thereunder, the rights, duties and immunities thereunder of the Trustee, the rights and obligations thereunder of the Company, and the terms and conditions upon which Bonds of this series, and bonds of other series, are issued and are to be issued; but neither the foregoing reference to the Indenture nor any provision of this Series Y Bond or of the Indenture shall affect or impair the obligation of the Company, which is absolute, unconditional and unalterable, to pay at the maturities herein provided the principal of and interest on this Series Y Bond as herein provided.

The Series Y Bonds shall be initially issued in the form of one or more global securities (the "Global Securities"). Each Global Security will be deposited with, or on behalf of, DTC and registered in the name of Cede & Co., a nominee of DTC. For as long as this Series Y Bond or any portion hereof is in the form of a Global Security, and notwithstanding anything else contained in this Series Y Bond, all payments of interest, principal and other amounts in respect of this Series Y Bond shall be made to DTC or its nominee in accordance with its applicable policies and procedures, in the coin or currency specified above.

In the event certificated bonds in definitive form are issued in exchange for the Global Securities they are issuable only in registered form without coupons in minimum denominations of $2,000 and integral multiples of $1,000.

The Series Y Bonds, while in the form of Global Securities, may not be transferred except as a whole (1) by DTC to a nominee of DTC or (2) by a nominee of DTC to DTC or another nominee of DTC or (3) by DTC or any such nominee to a successor of DTC or a nominee of such successor. If (1) DTC is at any time unwilling or unable to continue as depository and a successor depository is not appointed by the Company within ninety days or (2) there shall have occurred and be continuing after any applicable grace periods an Event of Default under the Indenture with respect to the Series Y Bonds represented by such Global Security, the Company will issue certificated bonds in definitive registered form in exchange for the Global Securities representing the Series Y Bonds.

The Company may at any time and in its sole discretion determine not to have any Series Y Bonds in registered form represented by one or more Global Securities and, in such event, will issue certificated bonds in definitive form in exchange for the Global Securities representing the Series Y Bonds. In any such instance, an owner of a beneficial interest in the Global Securities will be entitled to physical delivery in definitive form of certificated bonds represented by the Global Securities equal in principal amount to such beneficial interest and to have such certificated bonds registered in its name.

In the event certificated bonds are issued in exchange for the Global Securities, the Series Y Bonds may be surrendered for registration of transfer as provided in Section 305 of the Mortgage Indenture at the corporate trust office of the Trustee at U.S. Bank Trust Company, National Association in Boston, Massachusetts or the corporate trust offices of its successors, and may be surrendered at said office for exchange for a like aggregate principal amount of Series Y Bonds of other authorized denominations. No charge, except for taxes or other governmental charges, shall be made by the Company for any registration of transfer of Series Y Bonds or for the exchange of any Series Y Bonds for such bonds of other authorized denominations.

Prior to due presentment for registration of transfer of this Bond, the Company and the Trustee may deem and treat the registered owner hereof as the absolute owner hereof, whether or not such Series Y Bond shall be overdue, for the purpose of receiving payment and for all other purposes, and neither the Company nor the Trustee shall be affected by any notice to the contrary. Neither the failure to give any notice nor any defect in any notice given to the holder of the Global Securities or Series Y Bonds not represented by a Global Security, will affect the sufficiency of any notice given to any other holder.

As provided in the Twenty-Eighth Supplemental Indenture, this bond shall be subject to redemption prior to maturity as follows:

Prior to the maturity date of the Series Y Bonds, the Company may redeem the Series Y Bonds at its option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount of the Series Y Bonds to be redeemed and rounded to three decimal places) equal to the greater of:

(1)(a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined herein) plus 10 basis points less (b) interest accrued to the date of redemption, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) 100% of the principal amount of the Series Y Bonds to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

"Treasury Rate" means, with respect to any redemption date, yield determined by the Company in accordance with the following two paragraphs.

The Treasury Rate shall be determined by the Company after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as "Selected Interest Rates (Daily) - H.15" (or any successor designation or publication) ("H.15") under the caption "U.S. government securities–Treasury constant maturities–Nominal" (or any successor caption or heading) ("H.15 TCM"). In determining the Treasury Rate, the Company shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the redemption date to the maturity date of the Series Y Bonds (the "Remaining Life"); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields – one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life – and shall interpolate to the maturity date of the Series Y Bonds on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 TCM is no longer published, the Company shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the maturity date of the Series Y Bonds. If there is no United States Treasury security maturing on the maturity date of the Series Y Bonds but there are two or more United States Treasury securities with a maturity date equally distant from the maturity date of the Series Y Bonds, one with a maturity date preceding the maturity date of the Series Y Bonds, and one with a maturity date following the maturity date of the Series Y Bonds the Company shall select the United States Treasury security with a maturity date preceding the maturity date of the Series Y Bonds. If there are two or more United States Treasury securities maturing on the maturity date of the Series Y Bonds or two or more United States Treasury securities meeting the criteria of the preceding sentence, the Company shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

The Company's actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error. The Trustee shall have no responsibility to calculate the redemption price.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary's procedures) at least 10 days but not more than 60 days before the redemption date to each holder of bonds to be redeemed.

In the case of a partial redemption, selection of the Series Y Bonds for redemption will be made by or pursuant to the applicable depositary's procedures. No bonds of a principal amount of $2,000 or less will be redeemed in part. If any Series Y Bond is to be redeemed in part only, the notice of redemption that relates to the Series Y Bond will state the portion of the principal amount of the Series Y Bond to be redeemed. A new Series Y Bond in a principal amount equal to the unredeemed portion of the Series Y Bond will be issued in the name of the holder of the Series Y Bond upon surrender for cancellation of the original Series Y Bond. For so long as the Series Y Bonds are held by DTC (or another depositary), the redemption of the Series Y Bonds shall be done in accordance with the policies and procedures of the depositary.

On and after the redemption date interest will cease to accrue on the Series Y Bonds or portions thereof called for redemption. Prior to any redemption date, the Company is required to deposit with a paying agent money sufficient to pay the redemption price of and accrued interest on the Series Y Bonds to be redeemed on such date.

Any redemption may, at the Company's discretion, be subject to one or more conditions precedent, including, but not limited to, the completion or occurrence of a related transaction or event, as the case may be, and any notice of redemption made in connection with a related transaction or event may, at the Company's discretion, be given prior to the completion or the occurrence thereof. If such redemption is subject to satisfaction of one or more conditions precedent, such notice will describe each such condition, and if applicable, will state that, at the Company's discretion, the redemption date may be delayed until such time (including more than 60 days after the date the notice of redemption was mailed or delivered, including by electronic transmission) as any or all such conditions are satisfied (or waived by the Company in its sole discretion), or that such redemption may not occur and such notice may be rescinded in the event that any or all such conditions are not satisfied (or waived by the Company in its sole discretion) by the redemption date, or by the redemption date as so delayed, or that such notice may be rescinded at any time in the Company's discretion if in its good faith judgment any or all of such conditions will not be satisfied. If any such condition precedent has not been satisfied, the Company shall provide written notice prior to the close of business on the business day immediately prior to the redemption date. Upon receipt of such notice, the notice of redemption shall be rescinded or delayed, and the redemption of the Series Y Bonds shall be rescinded or delayed as provided in such notice.

If this bond is called for redemption in whole or in part and payment is duly provided as specified in the Indenture, this bond, or the part thereof so called, shall cease to be entitled to the security of the Indenture, and from and after the date fixed in the call for such redemption, interest shall cease to accrue on this bond, or on such part so called; and if less than the whole principal amount hereof shall be called, the registered owner hereof shall, in addition to the sums payable on account of the part called, be entitled, at his option, to receive on surrender hereof one or more bonds of this series, of an aggregate principal amount equal to that part of the principal amount hereof not called and paid, or to present this bond for the notation hereon by the Trustee (or to make such notation in accordance with an agreement for payment of principal filed with the Trustee as provided in this bond) of the payment of the part of the principal amount hereof then called and paid.

If an Event of Default shall have occurred and be continuing, the principal of the Series Y Bonds may be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture contains provisions permitting the Company and the Trustee to effect, by supplemental indenture, certain modifications of the Indenture without any consent of the holders of the bonds, and to effect certain other modifications of the Indenture, and of the rights of the holders of the bonds, with the consent of the holders of not less than a majority in aggregate principal amount of all bonds issued under the Indenture at the time outstanding, or in case one or more, but less than all, of the Series of said bonds then outstanding are affected, with the consent of the holders of not less than a majority in aggregate principal amount of said outstanding bonds of each Series affected.

No reference herein to the Indenture and no provision herein or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Series Y Bond at the time, place and rate, and in the coin or currency, herein prescribed.

No recourse shall be had for the payment of the principal of or premium, if any, or interest on this Series Y Bond, or for any claim based hereon, or otherwise in respect hereof or of the Indenture, to or against any incorporator or against any stockholder, director or officer, past, present or future, as such, of the Company or any affiliate of the Company, or of any predecessor or successor company, either directly or through the Company, or such predecessor or successor company or any trustee, receiver or assignee or otherwise, under any constitution, or statute or rule of law, or by the enforcement of any assessment or penalty, or otherwise, all such liability of incorporators, stockholders, directors or officers, as such, being waived and released by the holder and owner hereof by the acceptance of this Series Y Bond and as part of the consideration for the issuance hereof and being likewise waived and released by the terms of the Indenture.

## Exhibit 5.1

**Exhibit 5.1**![](tm2518668d1_ex5-1img001.jpg)

June 24, 2025

Public Service Company of New Hampshire

doing business as Eversource Energy

Energy Park

780 North Commercial Street

Manchester, New Hampshire

Re: Registration Statement on Form S-3ASR (File No. 333-286362-02)

Ladies and Gentlemen:

We have acted as counsel to Public Service Company of New Hampshire, doing business as Eversource Energy, a corporation organized under the laws of New Hampshire (the "<u>Company</u>"), in connection with the issuance and sale of $300,000,000 aggregate principal amount of its 4.40% First Mortgage Bonds, Series Y, Due 2028 (the "<u>Bonds</u>") pursuant to the above-referenced registration statement (the "<u>Registration Statement</u>"), filed by the Company with the Securities and Exchange Commission (the "<u>Commission</u>") under the Securities Act of 1933, as amended (the "<u>Securities Act</u>"). The Bonds are being issued under a First Mortgage Indenture, dated as of August 15, 1978, as supplemented, amended and restated effective as of June 1, 2011 (the "<u>Indenture</u>"), by and between the Company and U.S. Bank Trust Company, National Association (formerly known as U.S. Bank National Association), as trustee.

In connection with this opinion letter, we have examined the Registration Statement and the Indenture, which has been filed with the Commission as an exhibit to the Registration Statement. We have also examined such certificates, documents and records and have made such investigation of fact and such examination of law as we have deemed appropriate in order to enable us to render the opinions set forth herein. In conducting such investigation, we have relied, without independent verification, upon certificates of officers of the Company and one or more of its subsidiaries, public officials and other appropriate persons.

In rendering the opinions set forth below, we have assumed that the Company (a) is validly existing under the laws of its jurisdiction of organization, (b) has the power to execute and deliver the Indenture and to perform its obligations thereunder and (c) has duly authorized, executed and delivered the Indenture.

The opinions expressed herein are limited to matters governed by the laws of the State of New York.

Public Service Company of New Hampshire doing business as Eversource Energy - 2 -

Based upon and subject to the foregoing and the qualifications and limitations set forth below, we are of the opinion that, when the Bonds have been duly executed and authenticated in accordance with the provisions of the Indenture and have been delivered against receipt of payment therefor, the Bonds will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

Our opinions set forth above are subject to (i) bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance and similar laws affecting the rights and remedies of creditors generally and (ii) general principles of equity. Our opinions are also subject to the qualification that the enforceability of provisions in the Indenture providing for indemnification or contribution, broadly worded waivers, waivers of rights to damages or defenses, waivers of unknown or future claims, and waivers of statutory, regulatory or constitutional rights may be limited on public policy or statutory grounds.

We hereby consent to the incorporation of this opinion letter as an exhibit to the Registration Statement and to the use of our name under the caption "Legal Opinions" in the Prospectus. By giving the foregoing consent, we do not admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission thereunder.

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| Very truly yours, |
| /s/ Ropes & Gray LLP |
| Ropes & Gray LLP |

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## Exhibit 5.2

**Exhibit 5.2**

780 No. Commercial St <br> Manchester, NH 03105-0330<br> **Erik Newman**<br> Principal Counsel<br> 603-634-2459<br> Erik.Newman@eversource.com<br>

June 24, 2025

Public Service Company of New Hampshire,

doing business as Eversource Energy

Energy Park

780 North Commercial Street

Manchester, New Hampshire 03101-1134

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| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Re: | Public Service Company of New Hampshire, |
|  | doing business as Eversource Energy |
|  | 4.40% First Mortgage Bonds, Series Y, due 2028 |

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I am Principal Counsel of Eversource Energy Service Company, a service company affiliate of Eversource Energy, and have acted as counsel to Public Service Company of New Hampshire, a corporation organized under the laws of the State of New Hampshire doing business as Eversource Energy (the "Company"), in connection with the issuance and sale to the public of $300,000,000 aggregate principal amount of its 4.40% First Mortgage Bonds, Series Y, due 2028 (the "Bonds") pursuant to an Underwriting Agreement, dated June 16, 2025, among BofA Securities, Inc., Morgan Stanley & Co. LLC, and TD Securities (USA) LLC, as representatives of the underwriters named therein, (the "Underwriting Agreement"). The Bonds were issued pursuant to a First Mortgage Indenture, dated as of August 15, 1978, as supplemented, amended and restated effective as of June 1, 2011, between the Company and U.S. Bank Trust Company, National Association as Trustee (the "Indenture"). The Company has registered its first mortgage bonds with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the "Act"), pursuant to a Registration Statement on Form S-3 (File No. 333-286362-02, the "Registration Statement"). The Bonds were issued on June 24, 2025.

For purposes of the opinion I express below, I have examined, among other agreements, instruments and documents, the Registration Statement, including the prospectus which is a part of the Registration Statement, as supplemented by the prospectus supplement dated June 16, 2025 (the "Prospectus"), and its exhibits, including the organizational documents of the Company, the Indenture and originals, or copies certified to my satisfaction, of such corporate records of the Company, certificates of public officials, certificates of officers and representatives of the Company and other documents as I have deemed necessary as a basis for the opinions hereinafter expressed. In my examination, I have assumed the genuineness of all signatures and the authenticity of all documents submitted to me as originals and the conformity with the originals of all documents submitted to me as copies. As to various questions of fact material to such opinions, I have, when relevant facts were not independently established, relied upon certifications by officers of the Company and other appropriate persons and statements contained in the Registration Statement.

Based on the foregoing, and having regard to legal considerations which I deem relevant, I am of the opinion that (a) the Company is validly existing under the laws of its jurisdiction of organization, (b) the Company has the power to execute and deliver the Indenture and to perform its obligations thereunder and (c) the Company has duly authorized, executed and delivered the Indenture.

This opinion is limited to the current laws of the State of New Hampshire and to the facts as they exist on the date hereof. I undertake no obligation to advise you as a result of developments occurring after the date hereof including changes in such laws or interpretations thereof, or as a result of facts or circumstances brought to my attention after the date hereof.

This opinion is furnished only to you in connection with the transaction contemplated by the Registration Statement and the Underwriting Agreement and is solely for your benefit. Other than as stated below, this opinion is not to be used, circulated, quoted or otherwise referred to for any other purpose or relied upon by any other person for any purpose without my prior written consent (including by any person that acquires Bonds from you).

I hereby consent to filing of this opinion as an exhibit to the Company's Current Report on Form 8-K, dated June 24, 2025, which will be incorporated by reference into the Registration Statement, and to the reference to me under the caption "Legal Opinions" in the Prospectus. In giving this consent, I do not admit that I am within the category of persons whose consent is required by Section 7 of the Securities Act or the rules and regulations promulgated thereunder by the Commission.

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| |
|:---|
| Very truly yours,<br>|
| /s/ Erik Newman |
| Erik Newman |

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