13 states and D.C. are under a federal power grid emergency. The Department of Energy is letting plants run past their pollution limits to keep the lights on. Here’s what it means for you

eastern US. It does not own most of the power plants. Instead, it directs when and where generation runs so that supply matches demand every moment of the day. Estimates of its reach vary: one industry explainer puts its capacity at enough to power 35 to 45 million homes, while other figures suggest it serves more than 65 million people. Either way, a strain on PJM is a strain on a large share of the country’s population.
What section 202(c) does

Section 202(c) of the Federal Power Act