Energy

Devens-based AMSC said today that it has received a $40 million order for wind turbine electrical control systems (ECS).

As the Environmental Protection Agency this week took strict rule-making steps to require states to lower energy-related carbon dioxide emissions, the U.S. Energy Information Administration (EIA) reported Tuesday that total U.S. energy-related carbon dioxide emissions in 2013 were 10 percent below 2005 levels.

Electric ratepayers in Unitil's service area in North Central Massachusetts will see a smaller rate increase after the Patrick administration cut the utility's request for a larger jump in its distribution rate.

Boston-based renewable energy company First Wind said Wednesday that a solar project in Millbury, which will provide power to University of Massachusetts campuses in Worcester and Lowell, is complete and commercial operations have begun.

Hudson-based New England Clean Energy, which designs and installs solar energy products for homes and businesses, has expanded into southern New Hampshire, its president Mark Durrenberger, announced Thursday.

Following approval from the Massachusetts Energy Facilities Sitting Board this month, National Grid announced Thursday that it would begin construction on a 15.4-mile electric transmission line in Millbury, Sutton, Northbridge, Uxbridge and Millville.

First-quarter revenue plunged for Worcester-based ThermoEnergy Corp. (TMEN), which makes wastewater-treatment and power-generation systems, the company announced Thursday.

World Energy Solutions Inc. of Worcester reported revenue growth and narrowed losses in the first quarter, which CEO Phil Adams said points to continued recovery for the energy management services firm.

First-quarter revenue fell 9 percent at Framingham-based Ameresco, the company said Thursday.

Northeast Utilities, which owns several utility companies, including NStar, reported first-quarter 2014 earnings of $236 million, or...