7 takeaways on how grid operator PJM weathered the polar vortex

Energy News Network: As temperatures plunged, demand for electricity surged. On Thursday, peak morning demand for PJM ranked within the grid operator’s top 10 winter peaks for the last five years as utility customers in the region tried to stay warm.

The electric grid held up, though, staying reliable through the bone-chilling blast of a polar vortex that brought record low temperatures to the region. Michael Bryson, PJM’s vice president for operations, credits preparations by PJM and generators for the lack of disruptions on its system, which covers all or parts of 13 states and the District of Columbia.

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