US developer Broad Reach Power has closed US$435 million in financing to start construction on 880MW of battery storage projects in the CAISO and ERCOT markets, for 2023/24 commissioning.
California utility SDG&E has commissioned two projects totalling 171MW of battery storage, while system integrator Ameresco has secured contracts to deliver 379MWh for at four gas plants in the state.
Some 710MW of battery storage came online in the US in the first three months of the year, of which around 70% was in the ERCOT, Texas market, S&P Global said.
Adapting transmission infrastructure and accurately valuing energy storage are the major challenges to deployments in the US today, said panellists on the Keynote discussion at Energy Storage Summit USA today.
The US utility-scale battery storage sector achieved its highest-ever annual deployments in 2022, a year in which solar PV and wind underperformed against expectations.