Wärtsilä to provide 500 MW energy storage portfolio for Clearway Energy Group

Wärtsilä, a Finnish energy provider, has won a contract from Clearway Energy Group to provide a 500MWac/2GWh energy storage portfolio for Clearway’s solar-plus-storage projects. The five solar-plus-storage sites are a combination of energy storage and solar photovoltaic (PV) resources, and they are situated in Hawaii and California. The Daggett II and Daggett III projects, with a combined solar PV capacity of 482MWac and 275MWac/1.1GWh of energy storage, are part of the portfolio.

Reportedly, one of the largest co-located photovoltaic plus storage complexes in the area is the Daggett plant near San Bernardino, California. The two locations are currently under construction, and the projects are scheduled to be completed in 2023. The Mililani I Solar and Waiawa Solar Power assets, which are situated on the Hawaiian island of Oahu, are the other two projects of Clearway Energy Group. The two projects will have a combined energy storage capacity of 75MWac/300MWh. They are the first major energy storage devices built by Wärtsilä in Hawaii, and construction on them should be finished in 2022.

The fifth project will integrate a 147MWac/588MWh energy storage system with Kern County, California’s 192MWac Rosamond Central solar PV complex. In addition, each facility will include its GEMS Digital Energy Platform and GridSolv Quantum, a fully integrated, modular, and compact energy storage system. All five projects are covered by a long-term Service+ guaranteed asset protection (GAP) agreement with Wärtsilä.

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