NSTAR Electric had challenged the sale of five power plants in the Boston area worth about 2,654 MW from various entities to Constellation for $1.1 billion.

Eversource Energy's proposed Northern Pass transmission project won’t be operational until the first half of 2019. The company had previously said the line would be delivering Canadian hydropower to New England by 2018.

Two New England utilities that had power purchase agreements with the Cape Wind Associates’ offshore project have terminated the contracts.

Northeast Utilities, which operates six electric and gas companies in three New England states, is rebranding by changing its name to Eversource Energy.