Solar + storage breaks out in 2021 as hybrid systems surpass standalone storage

2021 was a “breakout year” for photovoltaics combined with storage projects, which accounted for 67 of the 74 hybrid projects added in the US

Driven by falling battery prices and the growth of variable renewable generation, hybrid and co-located energy projects — mainly solar combined with battery storage — are surging across the United States.

There were 298 hybrid projects in the United States totaling 35.9 GW of generating capacity with 3.2 GW/8.1 GWh of storage by the end of last year, according to the report. Nearly half the projects were solar with storage with the rest a mixture of wind, fossil-fuel generation, nuclear generation and other resources in various configurations.

Some 74 hybrid projects started operating last year, up 32% from 2020 and totaling 6.1 GW, a 21% increase from the previous year, according to the report, which covers projects larger than 1 MW. Many of the projects involved adding batteries to existing generating facilities in California and Florida, the researchers said.

Also, there were 70% more hybrid plants in interconnection queues at the end of last year compared to 2020, the LBNL researchers said.


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Source: Utility Dive

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