Battery boom: 5.6 GW of US energy storage added
US battery storage hits record 5.6 GW in Q2 2025, led by utility-scale growth, but sourcing rules may slow future gains.
This is where Battery Energy Storage Systems (BESS) are stepping in to help transform the equation. By storing excess renewable energy during periods of overproduction and releasing it when demand rises, BESS allows clean energy to be dispatched on demand.
Battery storage systems are not a primary electricity source, meaning the technology does not create electricity from a fuel or natural resource. Instead, batteries store electricity that has already been created from an electricity generator or the electric power grid, which makes energy storage systems secondary sources of electricity.
That's the intermittency problem. And the answer, increasingly, is battery storage. In this article, we'll dive into how Battery Energy Storage Systems (BESS) are reshaping the U.S. energy grid, solving the challenges of renewable variability, and scaling up faster than ever before.
The US battery storage market just had its biggest quarter ever. In Q2 2025, a record 5.6 gigawatts (GW) of new capacity came online, according to the latest US Energy Storage Monitor report from the American Clean Power Association (ACP) and Wood Mackenzie.
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