Key facts
- PJM Interconnection issued a maximum generation alert for July 3.
- The alert requests power producers to maximize electricity generation.
- Extreme heat is causing soaring demand for electricity.
- PJM serves approximately 67 million people across 13 states and D.C.
- The North American Electric Reliability Corp noted challenges from strong load growth for the summer.
PJM Interconnection, the operator of the largest U.S. electric grid, has issued a maximum generation alert for July 3, urging power producers to maximize electricity output amidst soaring demand driven by an extreme heat wave. This alert follows similar warnings issued for July 2 and is part of a broader Hot Weather Alert extending through July 4.
The grid operator is asking generators and transmission owners to defer or cancel any maintenance or testing on equipment to ensure units remain online and continue producing energy. This proactive measure aims to maintain reliable operations as electricity demand, particularly for cooling, reaches near-record levels across the Midwest and East Coast.
According to the North American Electric Reliability Corp's 2026 Summer Reliability Assessment, strong load growth and large computational loads are posing operational challenges for the upcoming summer. PJM's service area covers 13 mid-Atlantic and Midwest states and the District of Columbia, serving approximately 67 million people.