The California Independent System Operator’s nerve center in Folsom, where it runs the state’s main electricity-transmission grid.
The California Independent System Operator’s nerve center in Folsom, where it runs the state’s main electricity-transmission grid. Randall Benton Sacramento Bee file
The California Independent System Operator’s nerve center in Folsom, where it runs the state’s main electricity-transmission grid. Randall Benton Sacramento Bee file

California power grid issues ‘flex alert’ as temperature soars

July 27, 2016 12:03 PM

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