Batteries: 18.2 GW of capacity began operation in the 12 months to September 2026, 27% above the 12 months before
23.5 GW expected to start in the next 12 months · 23.1 GW in a building stage · 0.0 GW retired in the last 12 months · Net summer capacity listed by EIA; capacity is not energy delivered
Energy & Transport · Electricity · EIA (Form EIA-860M, monthly generator inventory) · 29 Sep 2026