California Heat Pushes Power to Six-Year Seasonal High

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Spot electricity in California, the second-leading power-consuming state, jumped to the highest seasonal level in six years as surging temperatures boost air-conditioning demand.

The National Weather Service issued a heat advisory through tomorrow for parts of the San Francisco and Monterey Bay areas. Temperatures in the interior valleys of the state should rise to 100 degrees Fahrenheit (38 Celsius) with San Francisco reaching the mid-90s tomorrow, the weather service said in forecasts yesterday. The May 13 record high for San Francisco is 87, weather service data show.