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PJM directed emergency electricity cuts Tuesday, with supplies tight today

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Unseasonably warm weather this week and local equipment problems forced regional power grid operator PJM Interconnection to direct utilities in certain areas to cut electricity to some customers to avoid the chance of an uncontrolled blackout, according to a news release today.

The release covered the situation Tuesday, when PJM set a September record for peak power use by meeting demand for 144,370 megawatts. The areas affected were in Indiana, Michigan, Ohio and Pennsylvania, according to the news release.

“Extreme heat in the western region of PJM resulted in record demand for September at a time when many power plants and some transmission lines were off for seasonal maintenance,” PJM CEO Terry Boston said in the statement.

As high temperatures remained into today, electricity supplies remained tight. The heat would require load reductions in some areas through demand response, the release stated.



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