California could need up to 37 GW of long-duration storage by 2045

The CEC’s latest report takes a closer look at the role that long-duration energy storage can play in the CAISO system. It found that with a “business-as-usual” scenario under California’s clean energy policies, which would allow for 12 million metric tons of annual emissions from the electricity sector and retain gas resources, it would be cost-effective to add up to 5 GW of long-duration energy storage to the system by 2045. But to decarbonize the grid even further — such as by retiring in-state gas resources — it could make sense to add up to 37 GW of long-duration resources.

California’s Senate Bill 100, passed in 2018, set a goal for the state to derive all retail electricity sales from renewable and zero-carbon resources by 2045.

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Source: Utility Dive

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