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California aggregator to buy capacity from compressed air storage project – pv magazine International


Underneath a 25-year settlement value almost $1 billion, a group selection aggregator has agreed to purchase 200 MW of eight-hour vitality storage from Hydrostor’s deliberate 500 MW facility in California.

From pv journal USA

California’s Central Coast Group Vitality has executed a 25-year energy buy settlement with Hydrostor, valued at almost $1 billion, for 200 MW/1600 MWh of vitality storage from a deliberate 500 MW of compressed air vitality storage system.

Hydrostor’s storage expertise can successfully retailer as much as eight hours of vitality, the corporate says, with out utilizing fuels, in a footprint a lot smaller than a equally sized pumped hydro storage. facility. The five hundred MW venture would require lower than 100 hectares. The California venture is one among 4 vitality storage initiatives that Hydrostor is growing worldwide, after finishing two pilot-scale initiatives.

A Hydrostor video says its expertise saves vitality by first utilizing electrical energy to run a compressor, producing scorching compressed air, and capturing and storing warmth with a thermal administration system. The compressed air is then despatched underground via a shaft, and saved in purpose-built caves that have been initially stuffed with water. Within the course of, compressed air forces water down a shaft right into a closed loop reservoir above.

When electrical energy is required, water from the reservoir is allowed to fill underground caverns, which carry the saved compressed air in a shaft to the floor, the place it’s heated by the saved warmth after which expanded via a turbine to generate electrical energy.

Central Coast Group Vitality (3CE) stated its 200 MW share of the venture will assist the company obtain its objective of offering 100% clear and renewable electrical energy by 2030 to 447,000 prospects between in Santa Cruz and Santa Barbara counties. The venture is positioned exterior of Rosamond in Kern County, and is named Willow Rock.

“The retirement of fossil fuels would require important quantities of vitality storage and that can require advances in new applied sciences and enhancements in current applied sciences,” stated Robert Shaw, chief working officer of 3CE. “By pushing the envelope, we’re clearing the best way to reliability and diminished emissions.”

3CE has executed 19 energy buy and vitality storage agreements since its formation in 2017. The company at present has commitments for 856 MW of unpolluted and renewable era and 285 MW of vitality storage capability. . 5 of those initiatives went on-line final yr, now serving 22% of the company’s load.

Hydrostor says the Willow Rock venture will cost utilizing extra renewable vitality and discharge the grid in periods of upper demand, lowering the necessity for brand spanking new era amenities. peak-demand and delay demand for “costly, hard-to-tolerate” transmission strains.

The corporate expects the venture to make use of as much as 40 full-time operators, and haven’t any efficiency degradation over a 50-plus yr lifespan.

As Hydrostor’s expertise makes use of “confirmed parts” from the hydrocarbon sector, the corporate says it “depicts a transparent path for expertise and experience from the fossil business gas to play an vital function on this planet’s vitality transition.”

Toronto-based Hydrostor stated offtake discussions are ongoing with a number of events for the stability of 300 MW of the five hundred MW venture. Fashioned in 2010, the corporate calls its expertise Superior Compressed Air Vitality Storage, or A-CAES.

On January 10, 2022, the corporate acquired a $250 million fairness funding from the personal fairness group of Goldman Sachs, with an extra $25 million funding from the Canada Pension Plan Funding Board in April.

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