Business & Real Estate

California ISO says power supply adequate for summer

Rows of towers that carry power cables from Southern California to Northern California are shown in Los Banos.
Rows of towers that carry power cables from Southern California to Northern California are shown in Los Banos. AP

The Folsom-based California Independent System Operator Corp. says electricity supplies will be sufficient to meet the 2015 summer peak, even under extreme periods of once-a-decade hot temperatures.

ISO runs the state’s transmission grid.

In an analysis titled “2015 Summer Loads and Resources Assessment,” ISO said a boost to grid reliability will come from additional generation, mostly solar, added to the system; stable imports; and only moderate peak demand growth. That is expected to compensate for hydroelectric availability expected to be at its lowest level in 10 years, a byproduct of California’s ongoing drought.

ISO projected a 2015 summer peak of slightly more than 47,000 megawatts; the 2014 summer peak was 44,703 megawatts set on Sept. 15.

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