Energy

A facility assessment of the DCU Center in Worcester suggested the arena will need about $60 million worth of upgrades over the next two decades, including $30 million over the next five years.

Sevcon, Inc. of Southborough has acquired the remaining 50 percent equity interest in a Chinese joint venture for $5 million, allowing Sevcon to capitalize on opportunities in China, a rapidly growing market for two- and four-wheel electric vehicles.

TJX and Boston Scientific both moved up and Staples fell on the new Fortune 500 list released Wednesday.

A Westborough waste hauling and recycling business recently installed a 1.1 megawatt solar system on the roof of its single stream sorting facility in order to save money and produce cleaner power.

A West Boylston environmental firm that recently came under new ownership said Tuesday morning it acquired a Westbrook, Maine company for an undisclosed amount.

An emergency regulation intended to support the continued development of an additional 1,600 megawatts of solar energy was filed Monday by the Baker administration.

Following President Donald Trump's decision to pull out of the Paris Climate Accord, the city of Worcester reaffirmed its commitment to battling climate change locally by joining a national coalition of mayors for environmental consciousness.

Govs. Charlie Baker and Phil Scott, two of the four Republican governors in New England, announced late Friday afternoon that they would join a coalition of states committed to fulfilling the tenets of the Paris Climate Agreement.

New England's largest energy supplier and its dominant private water company will combine under a $1.67 billion agreement announced Friday, a move that gives the water company a local owner.

AMSC, a Devens wind- and power-grid planning and engineering company, reported sharp declines in revenue and net losses for the most recent quarter and full fiscal year.