Solar-plus-storage accounted for the majority of hybrid resources. Image: PG&E.
Utility-scale battery energy storage system (BESS) installations in the US grew 196% to 2.6GW in 2021 but overall clean power installations fell 3%, according to the latest annual figures from the trade body American Clean Power Association (ACP).
Measured in energy, utility-scale BESS capacity quadrupled to 10.8 GWh over the course of the year. It now accounts for 2% of the country’s total clean power capacity of 200GW, about double 2020’s proportion.
Over 1GW of large-scale BESS was brought online in that last quarter alone, the first time that landmark has been reached in a single three-month period according to the ACP.
Note that Wood & Mackenzie Power & Renewables said that a gigawatt of deployements were achieved in Q3, as reported by Energy-storage.news, but Wood…