Editing Eversource Energy (section)

==  Corporate structure ==
Before its rebranding, the company operated six main subsidiaries: Connecticut Light and Power (CL&P), Public Service Company of New Hampshire (PSNH), Western Massachusetts Electric Company (WMECO), Yankee Gas Services Company (Yankee Gas), NSTAR Electric, and NSTAR Gas.<ref name="nu.com" />  NSTAR itself was the product of corporate mergers, and included the former Boston Edison Company, Cambridge Electric Light Company, Commonwealth Electric Company, Commonwealth Gas, and Cambridge Gas Company. All now currently operate under the Eversource name.

Eversource remains Connecticut's largest electric utility, serving more than 1.2 million residential, municipal, commercial and industrial customers in approximately 149 cities and towns.

Eversource is also New Hampshire's largest electric utility, serving over 500,000 customers, including homes and businesses, in 211 cities and towns throughout the state.

Furthermore, Eversource is a major energy distributor to 1.7 million customers across Massachusetts, including over 1.4 million electric customers in 140 communities and over 300,000 natural gas customers in 51 communities.