California grid urges conservation amid heat and fires
The state is encountering the first major heat wave of the year and electricity demand is expected to strain resources.
The heat wave is to last until July 11, particularly in central and northern California.
The Cal ISO manages the power grid on which flows 80 percent of the state's electricity.
The transmission system is owned by Pacific Gas & Electric, a unit of PG&E Corp, Southern California Edison, a unit of Edison International, and San Diego Gas & Electric, a subsidiary of Sempra Energy.
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California faces huge power cuts as wildfires rage
LOS ANGELES - Pacific Gas & Electric (PG&E) already faces an investigation by regulators after cutting supplies to 970,000 homes and businesses.
It announced that another 650,000 properties would face precautionary shut-offs.
Wildfires fanned by the strong winds are raging in two parts of the state.
Thousands of residents near the wealthy Brentwood neighbourhood of Los Angeles have been told to evacuate because of a wildfire that began early on Monday.
Further north in Sonoma County, a larger fire has forced 180,000 people from their homes.
California's governor has declared a state-wide emergency.
What about the power cuts?
On Monday regulators announced a formal inquiry into whether…