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Causes of Past Blackouts

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Causes of Past Blackouts

Causes of Past Blackouts

Causes of Past Blackouts

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  • <iframe src="https://www.npr.org/player/embed/1397063/1397064" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

NPR's Renee Montagne talks to electrical engineer T.C. Cheng about the possible causes of yesterday's massive power outage in the Northeast. Cheng, a professor of electrical engineering at the University of Southern California, has investigated similar electrical grid failures in Western states.