PG&E and Energy Vault to Build Largest Green Hydrogen Long-Duration Energy Storage System in U.S.
January 10, 2023 -- Energy Vault Holdings, a leader in sustainable grid-scale energy storage solutions, and Pacific Gas and Electric Company (PG&E) this week (Jan 5) announced the companies are partnering to deploy and operate a utility-scale battery plus green hydrogen long-duration energy storage system (BH-ESS) with a minimum of 293 megawatt-hours of dispatchable carbon-free energy.
The BH-ESS is designed to power downtown and the surrounding area of the Northern California City of Calistoga for a minimum of 48 hours during planned outages and potential Public Safety Power Shutoffs (PSPS), which is when the powerlines serving the surrounding area must be turned off for safety due to high wildfire risk.
The energy storage system will be owned, operated and maintained by Energy Vault while providing dispatchable power under a long-term tolling agreement with PG&E. The system's capacity may be expanded to 700MWh, which would allow it to operate for longer without refueling, enabling further flexibility for PG&E and the City of Calistoga.
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Source: Energy Vault / Business Wire
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