The US installed 3.3 GW/8.4 GWh of battery energy storage systems in the first quarter of 2026, marking a record for an opening quarter, 54% above the previous such high, according to the US Energy Storage Monitor report unveiled today by the American Clean Power Association (ACP) and Wood Mackenzie.

Relative certainty around tax policy and demand from large load customers are among factors driving the country’s energy storage boom, according to two reports out this month.

The US installed 3.3 GW/8.4 GWh of battery energy storage systems in the first quarter of 2026, marking a record for an opening quarter, 54% above the previous such high,…