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ESS and SB Energy deal to deploy 2GWh of iron flow energy storage in the US

Fri, 10/08/2021 - 09:59 -- paul Crompton

Long-duration battery maker ESS has entered into a framework agreement with SB Energy— a wholly owned subsidiary of SoftBank Group Corp— to deploy 2GWh of iron flow batteries in the next five years.

The first ESS has been delivered under the agreement to an SB Energy location in California, US, and will be commissioned in October 2021. 

Tokyo, Japan-based renewable power provider SB Energy plan to install flow battery systems to complement its portfolio of solar power projects in the US states of Texas and California.

Rich Hossfeld, co-chief executive officer at SB Energy and ESS board member, said: “Long-duration storage is absolutely critical to providing flexible, affordable renewable energy at scale and aligns perfectly with the Biden administration’s ambitious clean energy initiatives.”

In May, ESS announced it would become a public company through a merger with a special purpose acquisition company, ACON S2 Acquisition Corp. 

Last month, ESS closed an order for 17 ESS Energy Warehouse™ battery systems with a combined capacity of 8.5MWh, with renewable power company Enel Green Power España to deliver hte project, which will will support a solar farm in Spain as a part of a broader EU-wide engagement, providing resilience for the local power grid.  

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