Form 8-K

8-K — EVERSOURCE ENERGY

Accession: 0001104659-26-037912

Filed: 2026-03-31

Period: 2026-03-19

CIK: 0000072741

SIC: 4911 (ELECTRIC SERVICES)

Item: Regulation FD Disclosure

Item: Other Events

Item: Financial Statements and Exhibits

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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): March 19, 2026

Commission

File Number

Registrant; State of Incorporation

Address; and Telephone Number

I.R.S. Employer

Identification No.

001-05324

EVERSOURCE

ENERGY

(a Massachusetts

voluntary association)

300

Cadwell Drive

Springfield,

Massachusetts 01104

Telephone: (800)

286-5000

04-2147929

000-00404

THE

CONNECTICUT LIGHT AND POWER COMPANY

(a Connecticut

corporation)

107

Selden Street

Berlin,

Connecticut

06037-1616

Telephone: (800)

286-5000

06-0303850

001-02301

NSTAR

ELECTRIC COMPANY

(a Massachusetts

corporation)

800

Boylston Street

Boston,

Massachusetts

02199

Telephone: (800)

286-5000

04-1278810

001-06392

PUBLIC

SERVICE COMPANY OF NEW HAMPSHIRE

(a New

Hampshire corporation)

Energy

Park

780

North Commercial Street

Manchester,

New

Hampshire 03101-1134

Telephone: (800)

286-5000

02-0181050

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:

Registrant

Title of each class

Trading

Symbol(s)

Name of

each exchange on

which registered

Eversource Energy

Common

Shares, $5.00 par value per share

New

York Stock Exchange

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

Eversource Energy

The Connecticut Light and Power Company

NSTAR Electric Company

Public Service Company of New Hampshire

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.

Eversource Energy

The Connecticut Light and Power Company

NSTAR Electric Company

Public Service Company of New Hampshire

Document Type

8-K

Document Period End Date

2026-03-19

Amendment Flag

false

CIK

0000023426

THE CONNECTICUT LIGHT_Written communications

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Section 7

–

Regulation FD

Item 7.01

–

Regulation FD Disclosure.

The recent decision by the Federal Energy Regulatory Commission (FERC)

to arbitrarily reduce the return on equity (ROE) for New England transmission owners after more than a decade of uncertainty and inaction

will have significant negative impacts for both transmission owners and customers across the region. Following this decision, which we

believe is inconsistent with the statutory limitations imposed by the Federal Power Act (FPA), Eversource Energy (NYSE:ES) (the “Company”)

is taking legal action to prevent the damaging financial repercussions that would occur from retroactive refunds, including filing a motion

for stay of the order.

The Company, along with other New England transmission owners, is also

evaluating a Section 205 filing with FERC, which is a formal request under the FPA to change rates. FERC used outdated,

decade-old data to set the ROE, despite the fact that transmission owners are entitled to earn a just and reasonable rate of return based

on current economic conditions.

New England urgently needs expanded transmission capacity and modernized

infrastructure to support reliability and the integration of additional energy supply, which is essential to addressing energy affordability

challenges in the region. This decision would have a devastating impact on those efforts by eroding investor confidence, raising the cost

of capital required for vital infrastructure improvements, and risking cascading negative consequences for customers both now and in the

decades ahead. Eversource’s ongoing infrastructure investments in the transmission system over the years have delivered significant

benefits to customers, including eliminating significant congestion costs that have provided customers with billions of dollars in savings.

For more than a decade, FERC’s inaction has created regulatory uncertainty that makes it harder for transmission owners to attract capital and plan

necessary long-term investment, putting regional reliability, affordability, and economic growth at risk. If FERC’s retroactive

refund order beyond the 15-month statutory limit is upheld, it would signal that rates can be adjusted using decade old data, increasing

regulatory risk, raising borrowing costs caused by the likelihood of credit downgrades, and making future transmission projects more expensive—costs

ultimately borne by customers.

The change in the base ROE, and the related specific transmission

incentive adders, is expected to lower Eversource's future after-tax earnings in the aggregate by approximately $70 million for

2026. Taking into account the impacts of the prospective change to the transmission ROE, inclusive of the increased incentive cap as

well as the potential Aquarion sale, Eversource is adjusting its 2026 non-GAAP earnings guidance. The Company's revised 2026

non-GAAP guidance includes the impact of the elimination of Aquarion earnings should the sale close this year, which sale was

recently approved by PURA. This revised 2026 non-GAAP earnings guidance includes a $15 million negative impact should the Aquarion

transaction close, recognizing that approximately 70% of Aquarion's earnings occur in the second half of the year. The Company's

revised 2026 non-GAAP earnings guidance is now expected to be in the range of $4.57 per share and $4.72 per share. The Company also

expects that its cumulative long-term earnings per share growth rate would be within the range of 5 to 7 percent through 2030, using

the adjusted 2026 non-GAAP earnings guidance mid-point of $4.65 per share as the base year. The Company expects annual earnings

growth towards the upper half of its long-term guidance by 2028.

The information contained in this Item 7.01 shall not be deemed “filed”

with the Securities and Exchange Commission, nor incorporated by reference in any registration statement filed by the Company or any subsidiary

thereof under the Securities Act of 1933, as amended, unless specified otherwise.

Forward-Looking Statements

This document includes statements concerning Eversource Energy’s

expectations, beliefs, plans, objectives, goals, strategies, assumptions of future events, future financial performance or growth and

other statements that are not historical facts, including leverage targets and earnings objectives and expectations about closing the

transaction and the timing thereof. These statements are “forward-looking statements” within the meaning of U.S. federal securities

laws. Generally, readers can identify these forward-looking statements through the use of words or phrases such as “estimate,”

“expect,” “anticipate,” “intend,” “plan,” “project,” “believe,”

“forecast,” “would,” “should,” “could” and other similar expressions. Forward-looking

statements involve risks and uncertainties that may cause actual results or outcomes to differ materially from those included in the forward-looking

statements. Forward-looking statements are based on the current expectations, estimates, assumptions or projections of management and

are not guarantees of future performance. These expectations, estimates, assumptions or projections may vary materially from actual results.

Accordingly, any such statements are qualified in their entirety by reference to, and are accompanied by, the following important factors

that may cause our actual results or outcomes to differ materially from those contained in our forward-looking statements, including,

but not limited to cyber events or breaches, including acts of war or terrorism, affecting our systems or the systems of third parties

on which we rely; unauthorized access to, and the misappropriation of, confidential and proprietary Company, customer, employee, financial

or system operating information; actions or inaction of local, state and federal regulatory, public policy and taxing bodies; changes

in laws, regulations, Presidential executive orders or regulatory policy, including compliance with laws and regulations, which may impact

the cost of compliance and strategic initiatives of the Company; adverse publicity, which can harm our reputation, influence legislative

and regulatory bodies, and result in unfavorable outcomes; variability in the costs and final investment returns of the Revolution Wind

and South Fork Wind offshore wind projects as it relates to the purchase price post-closing adjustment under the terms of the sale agreement

for these projects; the ability to qualify for investment tax credits; extreme weather, including severe storms, due to the impacts of

climate change, and fluctuations in weather patterns; adequacy, contamination of, or disruption in, our water supplies; physical attacks

or grid disturbances that may damage and disrupt our electric transmission and electric, natural gas, and water distribution systems;

ability or inability to commence and complete our major strategic development projects and opportunities; breakdown, failure of, or damage

to operating equipment, information technology systems, or processes of our transmission and distribution systems; changes in levels or

timing of capital expenditures, including unplanned expenditures and increased capital expenditure requirements; changes in business conditions,

which could include disruptive technology or development of alternative energy sources related to our current or future business model;

substandard performance of third-party suppliers and service providers, or counterparties not meeting their obligations; limits on our

access to, or increases in, the cost of capital, including disruptions in the capital markets or other events that make our access to

necessary capital more difficult or costly; changes in economic conditions, including impact on interest rates, tax policies, tariffs

and customer demand and payment ability; changes in accounting standards and financial reporting regulations; actions of rating agencies;

and other presently unknown or unforeseen factors.

Other risk factors are detailed in Eversource Energy’s reports

filed with the Securities and Exchange Commission (SEC). They are updated as necessary and available on Eversource Energy’s website

at www.eversource.com and on the SEC’s website at www.sec.gov. All such factors are difficult to predict and contain uncertainties

that may materially affect Eversource Energy’s actual results, many of which are beyond our control. You should not place undue

reliance on the forward-looking statements, as each speaks only as of the date on which such statement is made, and, except as required

by federal securities laws, Eversource Energy undertakes no obligation to update any forward-looking statement or statements to reflect

events or circumstances after the date on which such statement is made or to reflect the occurrence of unanticipated events.

Section 8

–

Other

Item 8.01

Other.

On March 19, 2026, the Federal Energy Regulatory Commission (“FERC”)

issued an order establishing a base return on equity (“ROE”) of 9.57% for New England transmission owners and a maximum ROE

for transmission incentives of 12.09%.

Eversource Energy (the “Company”), together with other

New England transmission owners, is evaluating legal and regulatory responses to the order, including the filing of a request for rehearing

and a motion for stay. The Company and other transmission owners are also evaluating a potential filing under Section 205 of the Federal

Power Act to propose updated rates.

The FERC order also addresses the potential for refunds relating to

prior periods. Should such refunds be upheld, such required refunds to transmission customers would be issued over an 18 to 24-month period

in coordination with other New England transmission owners and ISO New England, and with FERC’s approval.

Section 9

–

Financial Statements and Exhibits

Item 9.01

Financial Statements and Exhibits.

Exhibit

Number

Description

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 registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

EVERSOURCE ENERGY

THE CONNECTICUT LIGHT AND POWER COMPANY

NSTAR ELECTRIC COMPANY

PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE

(Registrants)

March 31, 2026

By:

/s/ Jay S. Buth

Jay S. Buth

Vice President, Controller and Chief Accounting Officer

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