PJM sets record electric power use for September

Due to unseasonably high temperatures, PJM Interconnection, set a new record for September peak power use September 10 by meeting the demand for 144,370 MW.

The unusual, extreme heat of September 10 combined with local equipment problems to create emergency conditions in Indiana, Michigan, Ohio and Pennsylvania.

PJM said it was forced to direct local utilities in those areas to temporarily cut electricity to some customers to avoid the possibility of an uncontrolled blackout over a larger area that would have affected many more people.

The 2012 September peak demand was 129, 959 MW, and the PJM peak demand in July of this year was 157,509 MW. The hot weather continues in many areas September 11 and electric power supplies remain tight.

Continued heat in some areas will require load reductions through demand response, but PJM and its members are working to prevent additional emergency customer curtailments.

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