U.S. extreme heat breaks power demand record on largest grid – Fri, 03 Jul 2026 PST

Power demand on the largest U.S. grid surged to a record this week as a searing heat dome continues to hover over the east of the country on Friday, halting some Independence Day festivities in the nation’s capital. PJM Interconnection LLC, a power grid serving 67 million people across 13 states from the District of Columbia to Chicago, said demand on July 2 likely surpassed the previous …