A first-of-its-kind weatherization ordinance for rental housing in effect in Burlington, Vt., since Jan. 1 is starting to ramp up enforcement.

For a moment on April 30, CAISO was able to serve 99.87% of its native load with renewable energy, beating the 97.6% record set just a month earlier.

European companies are beginning an OSW supply chain in N.J. But a thriving industry will require many home-grown companies, speakers told the IPF conference.

FERC denied PJM’s rehearing request of its rejected FTR credit requirement calculation, but it said it would address the RTO’s arguments in a future order.

The Connecticut legislature passed three bills related to clean transportation, zero-carbon electricity and solar generation caps.

Maura Healey is focusing on climate in the race to replace Charlie Baker as Massachusetts governor.

New York officials, who may double the state's current 9-GW offshore wind target, explained the "mesh-ready" design for a future offshore grid.

The U.S. Department of Energy issued new energy-efficiency standards for light bulbs that will effectively phase out incandescent bulbs by July 2023.

The U.S. offshore wind industry is beginning to deliver on port improvements and other infrastructure, while also experiencing growing pains.

Gov. Janet Mills vetoed a bill that she says would create barriers to development of transmission lines and hinder efforts to reach regional climate goals.