Stacked area
U.S. Battery Storage Capacity
Utility-scale batteries operating on the U.S. grid, by state, nameplate gigawatts
Plays the chart through its history. Pauses are where the data set a record or moved most.
From the EIA-860M monthly generator inventory: battery units at plants of 1 MW or more, reported as operating. Power capacity, not hours of storage. EIA revises recent months.
How much battery storage is plugged into the U.S. power grid, stacked by state. Batteries soak up midday solar power and release it in the evening peak; the layers show how the build-out spread from California to Texas, Arizona and beyond.
What this chart reads
- Texas Utility-Scale Battery Storage Capacityas “Texas”behindlatest 2026-07-01
- California Utility-Scale Battery Storage Capacityas “California”behindlatest 2026-07-01
- Arizona Utility-Scale Battery Storage Capacityas “Arizona”behindlatest 2026-07-01
- Nevada Utility-Scale Battery Storage Capacityas “Nevada”behindlatest 2026-07-01
- Utility-Scale Battery Storage Capacity, U.S. Outside CA, TX, AZ, NVas “Other states”behindlatest 2026-07-01
Sources
Texas Utility-Scale Battery Storage Capacity. Source: U.S. Energy Information Administration, Form EIA-860M Preliminary Monthly Electric Generator Inventory, via the EIA Open Data API (electricity/operating-generator-capacity). EIA data are in the public domain.
California Utility-Scale Battery Storage Capacity. Source: U.S. Energy Information Administration, Form EIA-860M Preliminary Monthly Electric Generator Inventory, via the EIA Open Data API (electricity/operating-generator-capacity). EIA data are in the public domain.
Arizona Utility-Scale Battery Storage Capacity. Source: U.S. Energy Information Administration, Form EIA-860M Preliminary Monthly Electric Generator Inventory, via the EIA Open Data API (electricity/operating-generator-capacity). EIA data are in the public domain.
Nevada Utility-Scale Battery Storage Capacity. Source: U.S. Energy Information Administration, Form EIA-860M Preliminary Monthly Electric Generator Inventory, via the EIA Open Data API (electricity/operating-generator-capacity). EIA data are in the public domain.
Utility-Scale Battery Storage Capacity, U.S. Outside CA, TX, AZ, NV. Source: U.S. Energy Information Administration, Form EIA-860M Preliminary Monthly Electric Generator Inventory, via the EIA Open Data API (electricity/operating-generator-capacity). EIA data are in the public domain.
Charts are drawn from Palanor's signal library and recomputed from source data on every view. Transformations (changes, indexing, year-on-year rates) are Palanor's.