PJM, largest US power grid, escalates emergency steps to avert blackouts
PJM Interconnection, the largest US power grid operator, escalated emergency measures over the July 4 weekend as an extreme heat dome drove electricity demand to record highs. The operator urged consumers across 13 states to conserve power and warned of possible rolling blackouts. Temperatures topped 38°C (100°F) in several states.
PJM Interconnection, the largest power grid operator in the United States, escalated a series of emergency measures over the July 4 holiday weekend as an extreme heat dome settled over its territory. The operator, which serves roughly 65 million people across 13 states, said electricity demand was approaching record levels.
PJM urged households and businesses to cut consumption during the hottest hours and warned that rolling blackouts could follow if strain on the system persisted. Officials said surging air-conditioning use was pushing the grid toward its limits.
With temperatures topping 38°C (100°F) in several states, the episode reignited debate over the resilience of energy infrastructure as summers grow hotter. Analysts point to rising cooling demand and the load from new data centres as a major investment question for grids in the years ahead.
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