The story
The Rocky River Power Company, formed in 1905 by J. Henry Roraback, became the Connecticut Light and Power Company in 1917. Eversource predecessor Northeast Utilities (NU) was formed on July 1, 1966, under CEO Lelan Sillin, with the merger of the Connecticut Light and Power Company (CL&P, formed in 1917), Western Massachusetts Electric Company (WMECO, formed in 1886), and the Hartford Electric Light Company (HELCO, 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. Public Service Company of New Hampshire (PSNH, formed in 1926), a private company at the time, declared bankruptcy in January 1988 due to problems obtaining a license for the completed Seabrook Nuclear Power Plant. and in 1992 was merged into Northeast Utilities.
In 1999, Con Edison and Northeast Utilities entered negotiations that would have created one of the largest utilities in the United States. However, Con Edison backed out of the merger in 2001 after Connecticut's Attorney General Richard Blumenthal threatened lawsuits to block it.
Legislation passed in the late 1990s deregulated the electricity market in New England and required regulated utilities to divest generating stations to competitive suppliers. In 1999 the company divested all of the generating assets of WMECO and CL&P per requirements of the Massachusetts and Connecticut legislation. The company retained some of these assets by transferring them to a new subsidiary called Northeast Generation which functioned as a competitive supplier and sold the other assets entirely: WMECO's West Springfield Generating Station and several related hydroelectric and fossil fuel generating units were sold to Con Edison, while other assets (most notably the Northfield Mountain hydroelectric facility) were transferred to Northeast Generation.
In 2001, NU sold the assets and operations of its subsidiary, the Holyoke Water Power Company, to the City of Holyoke including the HWP electrical distribution system and customer base and all generation with the exception of the Mt. Tom coal-fired power plant which NU retained. The city's municipal gas and electric department assumed responsibility for the generators and absorbed the HWP distribution customer base. Between 2000 and 2002 due to state laws, NU divested WMECO, CL&P, and PSNH's nuclear generating assets which consisted of their stakes in the Seabrook, Millstone, and Vermont Yankee stations.
In November 2005, the company announced it would sell its unregulated competitive businesses, including generation and energy services. In November 2006 the company had essentially completed the divestiture of its competitive businesses.
In 2006, NU decided to sell the generating units it had earlier retained in the 1999 divestiture as competitive suppliers and shut down its competitive generation business units. The Northeast Generation assets, including Mount Tom Station and Northfield Mountain, were all sold to Energy Capital Partners. PSNH continued to operate regulated hydroelectric and fossil fuel generation assets to serve its default/basic service customers who did not choose an alternative competitive supplier.
In October 2010, Northeast Utilities announced that it would merge with NSTAR, the major electric and gas provider in Greater Boston, with the resulting company retaining the Northeast Utilities name for the next several years. After government approvals, the deal closed in April 2012.
In 2015, the company (now known as Eversource) agreed to sell all of its New Hampshire generation assets in the same manner it sold its assets in Massachusetts and Connecticut between 2000 and 2006. The sale of the New Hampshire generation fleet was approved by the state's Public Utilities Commission on November 29, 2017, and completed on January 10, 2018.
Read the full text
In June 2017, Eversource announced its merger with Aquarion Water Company for $1.675 billion. Aquarion would become a fully owned subsidiary and retain its own name, adding 300 employees and 230,000 customers in Connecticut, Massachusetts, and New Hampshire. In December 2017, the merger was completed after government approval.
In 2016, Eversource started joint ventures for wind farm developments with Ørsted. In 2023, Eversource announced it would sell off its equity in these projects (Bay State Wind, South Fork Wind, Revolution Wind, and Sunrise Wind) at an expected loss of $200 million.
From Wikipedia’s article on Eversource Energy, shared under CC BY-SA 4.0.7