Energy

Worcester-based Mass Megawatts Wind Power is entering the $12 billion U.S. solar power market, announcing the development of a new solar-tracking technology that it says will increase solar energy production 30 percent.

Pinetree Power Fitchburg has been assessed a $600,000 fine by state environmental officials to resolve a series of alleged violations of emissions limits at its facility in Westminster.

Unitil Corp., the utility that serves Fitchburg, Lunenberg and Townsend, reported a loss of $100,000 for its most recent fiscal quarter, a 75-percent drop from the loss it declared in the second quarter of 2012.

As air conditioners around the state do battle with the spate of scalding outdoor temperatures, there have been spotty electrical outages and strains on the grid, though the demand “under forecast,” Secretary of Energy and Environmental Affairs Rick Sullivan said Friday.

Setting out on what they say will be a long campaign, lawmakers are seeking to pass legislation that would tax carbon at $5 per metric ton.

ISO New England Inc., the region's grid operator, is asking customers to dial down energy use as it expects electricity consumption to hit near-record levels this week.

Unitil Corp. is asking the state to approve a rate increase that would account for $6.7 million in revenue for the company — an 11.5-percent increase — but have a minimal impact on customers due to other charges ending.

Businesses often find federal standards for clean air cumbersome, but one Holliston company is thriving on them.

Last month's federal indictment of Sinovel Wind Group, the Chinese firm alleged to have stolen trade secrets...

One of the state's largest electricity companies has repeatedly failed to pay its workers what they're owed, a union official charged this week.