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Rolling blackouts on pause for second straight day | Updates

California’s power grid operators are keeping a wary eye on the thermometer as a heat wave stresses the electrical system.
Credit: Getty Images/iStockphoto
Electricity power tower line

SAN FRANCISCO — 8:10 p.m. update:

Just before 8 p.m. Tuesday the California Independent System Operator announced that there wouldn't be any rolling blackouts for the rest of the night. 

The agency is still calling for electricity conservation on Wednesday because of high temperatures.

RELATED: Sacramento Local Forecast

2:50 p.m. update:
California Independent System Operator has declared a statewide "Stage 2 Emergency" and could start rolling blackouts at any time. The locations of the blackouts have not been released.  Previous blackouts have lasted a few hours.

Original story:

California’s power grid operators are keeping a wary eye on the thermometer as a heat wave stresses the electrical system.

 The state avoided rolling blackouts on Monday. The California Independent System Operator had expected to make utilities start rotating blackouts to as many as 3.3 million homes and businesses. 

But the grid operator didn't push the emergency button, saying slightly lower temperatures and customer conservation eased the load. 

Meanwhile, Gov. Gavin Newsom is demanding an investigation into two smaller blackouts on Friday and Saturday. 

RELATED: Sacramento Local Forecast

Temperatures are expected to hit triple digits again in many areas.

GO IN-DEPTH: Brandon Rittman explains what a "rolling blackout" is and why it's happening in California.