Calif. aggregators seek enough renewable power plus storage for 200,000 homes

S&P Global

Peninsula Clean Energy and San Jose Clean Energy, community choice aggregators that procure power for 1.7 million people in the San Francisco Bay area, plan to seek enough renewable energy for roughly 200,000 homes, the local government-run electricity suppliers announced Aug. 3.

In their joint request for proposals, due Sept. 4, the aggregators, or CCAs, asked for long-term power purchase agreements totaling 1 million MWh annually from new renewable energy sources, either stand-alone or battery-backed facilities. The projects must start delivering power by the end of 2024.

“Community choice energy providers are driving California’s clean energy future by investing billions in renewable energy and battery storage,” San Jose Mayor Sam Liccardo said in a statement.

While the request is open to all eligible renewable energy resources under the state’s renewable portfolio standard, which calls for 60% of California’s electricity to come from renewable resources by 2030, solar power plants coupled with lithium-ion battery systems have dominated recent solicitations from aggregators and investor-owned utilities.

“Those types of hybrid resources have really developed a lot over the last couple of years,” Siobhan Doherty, director of power resources at Peninsula Clean Energy, said in an Aug. 4 interview. “We have really seen prices come down.”

Numerous recent deals for solar-plus-storage resources in the Western U.S. have levelized energy prices in the range of $30/MWh to $40/MWh, in nominal dollars, according to an S&P Global Market Intelligence analysis.

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