Heat Wave

California ISO Declares Stage 2 Emergency, Warns of Rotating Blackouts

ROBYN BECK/AFP via Getty Images

California's Independent System Operator declared a Stage 2 emergency Saturday, warning residents to expect rotating blackouts and advising them to conserve energy.

Stage 2 means, "The ISO has taken all mitigating action and is no longer able to provide its expected energy requirements."

The declaration was due to high heat and increased demand, according to CAISO. In addition, CAISO said fires caused a generator and a solar farm to trip offline, highlighting the need for residents to reduce energy use.

Meanwhile, thousands of residents in Southern California were without power during a record-breaking heat wave, with the Los Angeles Department of Water and Power and Southern California Edison both reporting outages.

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