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Water-saving Californians asked to conserve power too in rare winter natural gas shortage


Water pipes lead to the cooling system of a Natural gas energy generator in Maxwell, Calif. Nov. 15, 2011. THE CANADIAN PRESS/AP, Rich Pedroncelli

LOS ANGELES, Calif. - Water isn't the only resource running short in California. The drought-stricken state is also low on natural gas.

With a move that usually comes in the height of summer when temperatures are soaring and air conditioners blasting, Californians were urged to voluntarily cut their electricity use after frigid weather across the U.S. and Canada caused a shortage of natural gas at Southern California power plants.

The so-called Flex Alert, in which residents are asked to turn off unneeded lights, avoid using large appliances or equipment, and turn off electrically powered heaters, was allowed to expire at 10 p.m. Thursday, nine hours after it began.

The shortage was only in Southern California, but the north was asked to do its part too.

"Statewide electricity and gas conservation will help free up both electricity and gas supplies for Southern Californians," the California Independent System Operator, which runs the state's power grid, said in a statement.

There was no immediate call for an extension of the alert, but it wasn't clear whether more could be coming.

Stephanie McCorkle, a spokeswoman for the grid operator, said Southern California has become increasingly dependent on natural gas-fired plants since the decision last year to shutter the troubled San Onofre nuclear power plant, which is located between Los Angeles and San Diego.

When it was operating, the twin-reactor San Onofre plant produced enough power for 1.4 million homes.

According to 2010 California Energy Commission research, 53 per cent of the power generated in the state comes from natural gas.

Record amounts of natural gas are being burned for heat and electricity across North America.

Research firm Bentek Energy said in a statement that domestic natural gas production dropped about 1 per cent in January from the previous month. That doesn't include Alaska or Hawaii.

"The recent and persistent cold in the U.S. Northeast and Midwest regions affected overall production this month, given that wells can freeze during very cold weather," Jack Weixel, Bentek's director of energy analysis, said in a statement.

Bentek analyst Luke Jackson said gas supplies entering Southern California pipelines have been considerably lower the past two days because of high gas prices and strong demand in Texas, the Pacific Northwest and the Rocky Mountain states, which has crimped gas supplies for Southern California.

The Electric Reliability Council of Texas, which operates most of that state's electric grid, asked people to reduce electric use until noon Friday. Peak demand Thursday morning exceeded 57,000 megawatts and could break the record of 57,277 megawatts before Texas' cold temperatures subside, the council said in a statement.

"We are expecting cold weather to continue through tomorrow morning's high demand period, and some generation capacity has become unavailable due to limitations to natural gas supplies," said Dan Woodfin, the council's director of system operations.


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