Cooling demand across PJM Interconnection’s operating area will surge today and into late week as tens of millions of households and businesses crank up air conditioners to stay cool under the emerging heat dome. The spike in power demand is expected to strain the grid, which helps explain why PJM preemptively declared a grid emergency on Tuesday to preserve reserves and reduce the risk of rolling blackouts.
Source: Largest US Power Grid On Verge Of Cracking Due To Historic Heat Dome