Two-thirds of the power on PJM's grid which serves 65 million people come from fossil fuels. Cities and attorney generals are calling for a priority on climate change.
Some say a just transition is not just about securing help for workers, but the shift to renewable energy can be a driver for redistributing wealth and power in society.
The groups say preparations for construction of a commercial-scale wind turbine by the Ohio National Guard have already violated the Endangered Species Act.
