In February, EIA said developers planned to add 24 GW of utility-scale battery storage in 2026. Its monthly generator inventory (Form EIA-860M) had 24. 28 GW of batteries in the December 2025 report's 2026 book.
Source: [Dev.to](https://dev.to/munimv2/batteries-at-us-solar-plants-slipped-with-their-solar-never-without-it-5e0i)