Eversource Energy ES

Eversource Energy, incorporated on January 15, 1927, is a utility holding company. The Company is engaged in the energy delivery business. It operates through three segments: electric distribution, electric transmission and natural gas distribution. It operates through its utility subsidiaries, which include The Connecticut Light and Power Company (CL&P), an electric utility that serves residential, commercial and industrial customers in parts of Connecticut; NSTAR Electric Company (NSTAR Electric), an electric utility that serves residential, commercial and industrial customers in parts of eastern Massachusetts; Public Service Company of New Hampshire (PSNH), an electric utility that serves residential, commercial and industrial customers in parts of New Hampshire, and owns generation assets used to serve customers; Western Massachusetts Electric Company (WMECO), an electric utility that serves residential, commercial and industrial customers in parts of western Massachusetts, and owns solar generating assets; NSTAR Gas Company (NSTAR Gas), a natural gas utility that serves residential, commercial and industrial customers in parts of Massachusetts, and Yankee Gas Services Company (Yankee Gas), a natural gas utility that serves residential, commercial and industrial customers in parts of Connecticut. CL&P, NSTAR Electric, PSNH and WMECO also serve New England customers through the Company's electric transmission business.

Electric distribution

The electric distribution segment consists of the distribution businesses of CL&P, NSTAR Electric, PSNH and WMECO. These businesses are engaged in the distribution of electricity to retail customers in Connecticut, eastern Massachusetts, New Hampshire and western Massachusetts, respectively, and the regulated electric generation businesses of PSNH and WMECO. CL&P's distribution business consists of the purchase, delivery and sale of electricity to its residential, commercial and industrial customers in Connecticut. As of December 31, 2016, CL&P furnished retail franchise electric service to approximately 1.2 million customers in 149 cities and towns in Connecticut, covering an area of 4,400 square miles. The electric distribution businesses of NSTAR Electric and WMECO consist of the purchase, delivery and sale of electricity to residential, commercial and industrial customers within their respective franchise service territories. As of December 31, 2016, NSTAR Electric furnished retail franchise electric service to approximately 1.2 million customers in Boston and over 80 surrounding cities and towns in Massachusetts, including Cape Cod and Martha's Vineyard, covering an area of approximately 1,700 square miles.

As of December 31, 2016, WMECO provided retail franchise electric service to approximately 210,000 customers in 59 cities and towns in the western region of Massachusetts, covering an area of approximately 1,500 square miles. PSNH's distribution business consists of the generation, delivery and sale of electricity to its residential, commercial and industrial customers. As of December 31, 2016, PSNH furnished retail franchise electric service to approximately 511,000 retail customers in 211 cities and towns in New Hampshire, covering an area of approximately 5,630 square miles. As of December 31, 2016, PSNH owned and operated approximately 1,200 MW of primarily coal-, natural gas-, and oil-fired electricity generation plants. PSNH's distribution business includes the activities of its generation assets.

Electric transmission

The Company's CL&P, NSTAR Electric, PSNH and WMECO owns and maintains transmission facilities that are part of an interstate power transmission grid over which electricity is transmitted throughout New England. Each of CL&P, NSTAR Electric, PSNH and WMECO has agreements that provide for coordinated planning and operation of the region's transmission facilities.

Natural gas distribution

As of December 31, 2016, NSTAR Gas distributed natural gas to approximately 289,000 customers in 51 communities in central and eastern Massachusetts covering 1,067 square miles, and Yankee Gas distributes natural gas to approximately 229,000 customers in 72 cities and towns in Connecticut covering 2,187 square miles. As of December 31, 2016, Yankee Gas owned a 1.2 billion cubic feet liquefied natural gas (LNG) facility in Waterbury, Connecticut.

The Company also provides water utility services through its wholly-owned subsidiary, Aquarion.