Environmental groups cheered the plan, which calls for spending on everything from renewable energy to plugging old oil and gas wells that emit methane.

The Borough of Chambersburg’s council recently voted unanimously to enter into a 20-year power purchase agreement with Virginia-based Sun Tribe.

As of this month, Philadelphians can choose a cleaner option: gas produced in landfills, known as biogas.

A bipartisan group of governors is calling on federal regulators to look at unifying the nation’s power grids.