PJM Interconnection, serving 20% of Americans, declared an energy emergency alert due to soaring electricity demand. Extreme heat is driving power consumption to a 14-year high, potentially exceeding 160 gigawatts on June 23rd. This surpasses the peak since 2009, prompting a 'maximum generation emergency' to bolster power supplies across the 13-state grid.

Prepared by Christopher Adams and reviewed by editorial team.