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Weather & Science

California Avoids Blackouts With Bigger Test Ahead as Heat Looms

  • Grid operator ends emergency Monday after several taut hours
  • Power consumption forecast to be even higher on Tuesday
Electrical transmission towers in Vacaville, California.
Electrical transmission towers in Vacaville, California.Photographer: David Paul Morris/Bloomberg
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California narrowly avoided implementing rotating outages on Monday while officials warned that the state’s power grid will face a bigger test on Tuesday amid a record-breaking heat wave. 

The state’s grid operator canceled its grid emergency late Monday evening after deploying supplies that helped keep the lights on even as electricity use soared to its highest level in five years.