Reuters: California's power grid operators warned homes and businesses on Monday to conserve electricity as rising demand for air conditioning stoked by a record-setting heat wave across the U.S. Southwest tested the region's generating capacity.
The so-called Flex Alert was posted until 9 p.m. Pacific time during a second day of triple-digit temperatures that strained Southern California's energy production, creating a potential for rolling blackouts on the first official day of summer.
But the peak...