Energy

Pilgrim Nuclear Station began powering down Sunday morning so that it can refuel for the last time.

Greenhouse gas emissions in Massachusetts decreased from 2013 to 2014, continuing a decade-long trend, according to the latest state data.

State and business officials stressed the importance of building bonds across borders as representatives of Canadian, French, Swiss and Haitian governments and companies gathered at the State House Tuesday.

National Grid's Sustainability Hub unveiled a semi-transparent solar awning on Friday, which National Grid says is the first of its kind in Massachusetts.

Massachusetts received a failing grade in a new national report assessing lead pipe disclosure policies in the...

Worcester will downgrade its drought alert status to Stage 1 -- a less severe level but one that still comes with water-use restrictions on businesses -- as reservoir conditions have improved.

Solect, a Hopkinton solar energy developer and installer, has bought the Northeast division of industry rival Brightergy, Solect announced Tuesday.

Among the concerns of human rights and security, President Donald Trump and his Cabinet picks are doing...

New England's wholesale electricity prices last year fell to their lowest level since 2003, according to grid operator ISO New England.

Renewable energy and energy efficiency company Ameresco of Framingham had its net income rise to $12 million last year, from $844,000 the prior year.