Public Service Company of New Hampshire

Eversource Energy

Type	Public
Traded as	: ES S&P 500 Component
Industry	Utility
Predecessor	Formed by the merger of Connecticut Light and Power Company and Western Massachusetts Electric Company on July 1, 1966.
Founded	1966
Headquarters	Hartford, Connecticut, United States and Boston, Massachusetts, United States
Area served	Connecticut, Massachusetts, New Hampshire
Key people	Governed by an 14-member Board of Trustees. Sanford Cloud, Jr., Lead Trustee
Products	transmission, distribution and generation
Number of employees	8,500
Website	www.eversource.com

Eversource Energy (formerly known as Northeast Utilities) is a publicly traded, Fortune 500 energy company headquartered in Hartford, Connecticut and Boston, Massachusetts, with several regulated subsidiaries offering retail electricity and natural gas service to more than 3.6 million customers in Connecticut, Massachusetts and New Hampshire.

Following its 2012 merger with Boston-based NSTAR, NU has more than 4,270 circuit miles of electric transmission lines, 72,000 pole miles of distribution lines, and 6,459 miles of natural gas pipeline in New England.

On February 2, 2015, Northeast Utilities and all its subsidiaries rebranded themselves as "Eversource Energy". The stock symbol changed on February 19, 2015 from "NU" to "ES".

ES was formed on July 1, 1966, with the merger of Connecticut Light and Power Company (CL&P) (formed in 1917), Western Massachusetts Electric Company (WMECO, formed in 1886), and the Hartford Electric Light Company (formed in 1878) under a single parent company, creating the first new multi-state public utility holding company since the enactment of the Public Utility Holding Company Act of 1935. In 1967, Holyoke Water Power Company (HWP) (formed in 1859) joined the NU System, and in 1992 the Public Service Company of New Hampshire (PSNH, formed in 1926) followed.

PSNH had declared bankruptcy in January, 1988 due to problems getting a license for the completed Seabrook Nuclear Power Plant.