Why is PJM asking millions of people to reduce their electricity use? U.S. power grid faces emergency
PJM, the largest U.S. grid operator, said on Friday that the power system was under severe stress. The grid operator said it was working under a federal emergency alert to reduce power demand in its service area. PJM issued an emergency alert as extreme heat, generator outages and overloaded power lines stress the U.S. power … Read more