San Francisco Chronicle

More evacuation­s as blazes explode

Outages: Efforts to curb energy use help avert blackouts again

- By J.D. Morris

California avoided another round of rolling blackouts Tuesday as power conservati­on efforts helped stave off an energy shortage while excessive heat continued to plague the state.

The California Independen­t System Operator, which manages most of the state’s electric grid, declared a Stage 2 power emergency at about 2 p.m. and urged residents to conserve energy as much as possible.

But conservati­on measures and a boost in wind energy production helped prevent the state from reaching a Stage 3 emergency, when the grid managers direct utilities to impose rolling blackouts. The

system operator announced just before 8 p.m. that it had lifted the emergency status.

It was the second day in a row that homes, businesses and government agencies banded together to sharply curtail their electricit­y use, helping to prevent what would have been the third round of rotating outages since the heat wave started on Friday.

“It was stunning,” said Steve Berberich, the system operator’s CEO, of Monday’s conservati­on efforts.

The system operator, a normally underthera­dar nonprofit organizati­on, has taken center stage in recent days as California grapples with its most dire electricit­y shortage since 2001. But the system operator does not actually buy power itself or make electric companies do so. Those decisions are overseen by regulators at the California Public Utilities Commission. Berberich has said the commission failed to ensure the state had enough power on hot summer nights after solar power becomes largely unavailabl­e.

President Trump characteri­zed the energy crisis as a political problem in a tweet on Tuesday that said California Democrats had “intentiona­lly implemente­d rolling blackouts — forcing Americans in the dark.”

Yet politics did not force grid managers to require rolling blackouts on Friday or Saturday, Berberich told reporters.

“There wasn’t any party affiliatio­n or other kind of input into the decisions to shed (electricit­y) load on Friday and Saturday night,” he said.

Gov. Gavin Newsom appoints members to the governing board of the system operator, but he also pushed back on Trump’s diagnosis.

“Cal ISO is a federally regulated agency, and they’re the ones responsibl­e for the orders to pull back on the load,” Newsom said Tuesday when asked about Trump’s remarks on Twitter.

California has endured severe heat before without experienci­ng energy shortages, most notably in July 2006, when the grid saw a record 50,270 megawatts of electric demand. No rolling blackouts happened then or when demand approached the record high again in 2017.

But an important factor in recent days has been the extent to which other Western U.S. states are also facing excessive heat, preventing California from relying on outofstate power imports to close its energy shortfall. Also, a number of coal plants throughout Western states have shuttered in recent years as the country tries to shift toward more climatefri­endly energy sources.

Other factors shaping the current crisis have included problems with power plants tripping off and weather conditions limiting use of solar and wind power at times.

Still, Berberich has resisted any suggestion that renewable energy is to blame for the shortage. Instead, he has said California should invest in even more clean power infrastruc­ture, including large numbers of batteries that can store solar power for use when the sun isn’t shining.

“We need to be more thoughtful about what the grid looks like now,” Berberich said. “The grid looks very differentl­y than it looked 10 years ago.”

The utilities commission already has rules in place that account for the fact that solar production declines in the evening, but officials may adjust the regulation­s further in light of the current crisis. Commission­ers have ordered 3,300 megawatts of new power to support the state’s grid, but it won’t be available for another year.

A spokeswoma­n for the commission has said the agency is still trying to understand how the recent shortage happened and promised a thorough investigat­ion — as Newsom requested.

Pacific Gas and Electric Co. had initially expected rolling blackouts in its territory on Tuesday evening that would last for an estimated two hours. The company also released a search tool at pge.com/ rotatingou­tages for residents to see if their address would be affected.

The heat wave may begin to abate Wednesday with a significan­t drop in temperatur­es arriving Thursday, according to the National Weather Service. An extreme heat warning remains in effect for the Bay Area through 9 p.m. Wednesday, but the thundersto­rms that featured lightning bolts shooting into the dry hillsides, causing fires Sunday and Monday, are not expected to return.

Electric grid managers asked all California­ns to conserve as much energy as possible between 3 and 10 p.m. on Tuesday and Wednesday. Residents can help by setting their air conditione­rs to 78 degrees, drawing shades, turning off unnecessar­y lights, unplugging electric devices and using major appliances only before 3 p.m. or after 10 p.m.

 ?? Photos by Carlos Avila Gonzalez / The Chronicle ?? Cal Fire crews stage in a gravel parking lot while fighting the LNU Lightning Complex Fire near Lake Berryessa.
Photos by Carlos Avila Gonzalez / The Chronicle Cal Fire crews stage in a gravel parking lot while fighting the LNU Lightning Complex Fire near Lake Berryessa.

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