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U.S. grid-scale battery storage

Utility-scale batteries on the U.S. grid: capacity in operation, what is being added each year, where it is, and what is planned.

Last refreshed: 2026-11-03Grid storage data: Sep 2026
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Grid-scale battery storage

Utility-scale batteries on the U.S. grid: what is running, where, and what is planned.

Battery storage on the grid

utility-scale power capacity · Sep 2026

56.1 GW

▲ 48.6% vs. year ago

U.S. Energy Information Administration, Form EIA-860M, source

Battery storage energy capacity

utility-scale · Sep 2026

154.3 GWh

▲ 46.3% vs. year ago

U.S. Energy Information Administration, Form EIA-860M, source

Storage added, last 12 months

utility-scale power capacity · Sep 2026

18.3 GW

▲ 31.0% vs. year ago

U.S. Energy Information Administration, Form EIA-860M, source

Storage planned

reported to EIA, power capacity · Sep 2026

64.2 GW

483 units; 15.4 GW canceled or postponed

U.S. Energy Information Administration, Form EIA-860M, source

Average storage duration

energy ÷ power capacity · Sep 2026

2.75 hrs

▼ 1.4% vs. year ago

U.S. Energy Information Administration, Form EIA-860M, source

Utility-scale battery storage on the U.S. grid

Power capacity in operation at each month end, gigawatts

  • Operating power capacity
View data table

Battery storage energy capacity

Energy capacity in operation at each month end, gigawatt-hours

  • Operating energy capacity
View data table

Battery storage added each year: built and planned

Power capacity brought online by year, and capacity developers report as planned, gigawatts. 2026 combines units online so far with those planned for the rest of the year. Planned projects often slip or are canceled.

  • Online
  • Planned
View data table

Battery storage by state

Utility-scale battery capacity in operation, as of Sep 2026, ranked by power capacity, with planned capacity developers have reported. Duration is energy capacity divided by power capacity.

#StateOperatingEnergyDurationPlannedShare
1Texas19.39 GW31.9 GWh1.6 h25.30 GW34.6%
2California16.51 GW56.5 GWh3.4 h9.94 GW29.4%
3Arizona6.89 GW25.0 GWh3.6 h6.56 GW12.3%
4Nevada2.10 GW6.4 GWh3.0 h2.92 GW3.8%
5New Mexico1.36 GW5.2 GWh3.8 h0.93 GW2.4%
6Florida1.20 GW3.1 GWh2.6 h0.24 GW2.1%
7Utah1.07 GW3.3 GWh3.1 h0.71 GW1.9%
8Georgia0.86 GW2.8 GWh3.2 h0.53 GW1.5%
9Massachusetts0.74 GW1.6 GWh2.2 h0.67 GW1.3%
10Colorado0.67 GW2.4 GWh3.6 h1.95 GW1.2%
11Idaho0.66 GW2.6 GWh4.0 h0.10 GW1.2%
12Indiana0.59 GW1.5 GWh2.6 h0.02 GW1.0%
13Oregon0.52 GW2.1 GWh3.9 h2.94 GW0.9%
14Hawaii0.52 GW1.6 GWh3.1 h0.16 GW0.9%
15Oklahoma0.43 GW1.5 GWh3.5 h0.65 GW0.8%

U.S. Energy Information Administration, Form EIA-860M, monthly generator inventory

Largest battery storage sites in operation

All battery units at each power plant, by power capacity; online is the month the first battery unit there began operating.

#SitePowerEnergyOnline
1Menifee Power BankNova Power, LLC · California680 MW2,720 MWhJun 2024
2McGrau Ford Battery Storage FacilityGeorgia Power Co · Georgia530 MW1,590 MWhAug 2026
3Bellefield Solar and Energy Storage Farm50LW 8me LLC · California500 MW2,000 MWhDec 2025
4Dynegy Moss Landing Power Plant HybridDynegy -Moss Landing LLC · California450 MW1,800 MWhMay 2021
5Manatee Solar Energy CenterFlorida Power & Light Co · Florida409 MW900 MWhNov 2021
6SAHARA BESS (SOHO BESS)ESTX-PLD-HOUSTON2, LLC · Texas409 MW817 MWhJul 2026
7Green River Energy Center - HybridGreen River Energy Center, LLC · Utah400 MW1,600 MWhJun 2026
8Kola Energy CenterKola Energy Storage, LLC · California400 MW1,800 MWhAug 2025
9Sierra Solar HybridSierra Pacific Power Co · Nevada400 MW1,600 MWhMar 2026
10Gemini Solar HybridGemini Solar · Nevada380 MW380 MWhMar 2024

U.S. Energy Information Administration, Form EIA-860M, monthly generator inventory

Largest planned battery storage projects

Projects developers report to EIA as planned, by power capacity, with the planned online month and stage.

#ProjectPowerPlanned onlineStage
1Sunstone SolarSunstone Solar, LLC · Oregon1,200 MWDec 2027Awaiting approval
2Deschutes Solar and BESSDECH bn, LLC · Oregon1,000 MWNov 2029Awaiting approval
3Libra SolarLibra Solar LLC · Nevada700 MWDec 2027Building
4Clear Fork Creek Solar and BESS SLFClear Fork · Texas600 MWMar 2027Building
5Sherco BESSNorthern States Power Co - Minnesota · Minnesota600 MWDec 2027Building
6Maricopa SolarMaricopa Solar · Arizona550 MWDec 2026Building
7Bellefield 2 Solar & Energy Storage Farm26SB 8me LLC · California500 MWDec 2026Building, over half done
8Grace Energy CenterGrace Orchard Interconnection, LLC · California500 MWOct 2027Awaiting approval
9Hecate Energy Ramsey StorageHecate Energy Ramsey Storage, LLC · Texas500 MWDec 2027Planned
10Sunscape Renewable EnergyVesper Energy Development LLC · Texas500 MWOct 2028Planned

U.S. Energy Information Administration, Form EIA-860M, monthly generator inventory

Planned storage by stage

Planned battery capacity reported to EIA, by how far each project has progressed.

StagePowerUnits
Planned, approvals not started19.74 GW118
Awaiting regulatory approval15.84 GW85
Under construction, up to 50% complete12.36 GW108
Under construction, over 50% complete7.96 GW102
Approved, not under construction5.36 GW41
Built, not yet in commercial operation2.98 GW29

U.S. Energy Information Administration, Form EIA-860M, monthly generator inventory

Sources & method

Public data, cited.

Show sources and methodology

Producer prices, industrial production, shipments, inventories and employment come from the U.S. Bureau of Labor Statistics, the Federal Reserve and the U.S. Census Bureau, and metal prices from the International Monetary Fund, all through the Federal Reserve Bank of St. Louis's FRED database; they refresh on this page at least twice a day. Grid-scale storage comes from the U.S. Energy Information Administration's monthly generator inventory (Form EIA-860M), which covers units of at least 1 megawatt. Pack prices are BloombergNEF's annual battery price survey as published in its press releases. Mineral production, reserves, import reliance and annual prices come from the U.S. Geological Survey's Mineral Commodity Summaries.

  • Changes compare the latest reading with the same period a year earlier. For producer price indexes the headline is the year-over-year rate of change, and its comparison is the change in that rate, in percentage points.
  • Battery manufacturing (NAICS 33591) covers all battery types made in the U.S., including lead-acid, not lithium-ion alone. Census's annual survey of storage-battery plants (NAICS 335911) was not published for 2023, and its 2022 jump in employment partly reflects new plants classified into the industry.
  • Storage history counts battery units by the month they entered service and removes retired units in the month they retired, using EIA's latest inventory, so earlier months may differ slightly from the inventory EIA published at the time. Power capacity is nameplate megawatts; energy capacity is nameplate megawatt-hours. Planned capacity is what developers report to EIA; planned projects frequently slip or are canceled.
  • Global EV battery deployment, EV sales shares, and mineral demand and supply by country come from the International Energy Agency's Global EV Outlook data and Critical Minerals Data Explorer, licensed CC BY 4.0. The IEA rounds to two significant figures, so regions may not sum exactly to the world total. Outlook figures are IEA scenarios (Stated Policies, or the base case for supply), not forecasts.
  • EV battery recalls are U.S. vehicle recalls whose NHTSA subject or defect summary refers to the high-voltage (propulsion) battery: its cells, modules, pack, contactors or control module. NHTSA's open data does not carry the detailed component code, so the match is by keyword and may miss or include a few borderline recalls. Vehicle counts are the manufacturer's estimate of vehicles potentially affected.
  • Cell plants and supply-chain facilities come from the Lithium-Ion Battery Supply Chain Database compiled by NAATBatt International and the National Laboratory of the Rockies (formerly NREL) for the U.S. Department of Energy; we credit DOE, NLR, the Alliance for Energy Innovation and NAATBatt, who do not endorse this page. Capacity is each facility's announced annual capacity, not output. Our own status checks, each linked to its sources, are shown beside the database's status and can be more recent.
  • Company financials are as reported, company-wide unless marked as a segment, converted to U.S. dollars at each quarter's average exchange rate, so dollar growth includes currency moves. Chinese companies report under Chinese accounting standards (operating profit includes investment income and impairments), Korean companies under K-IFRS, Panasonic under IFRS with adjusted operating profit, and U.S. companies under U.S. GAAP. From 2026, LG Energy Solution, Samsung SDI and SK On include the U.S. advanced manufacturing production credit (Section 45X) in revenue, so their 2026 revenue is not like-for-like with earlier years. SQM figures follow its Chilean-basis earnings releases. BYD is shown company-wide, which is mostly vehicles.
  • Figures are as reported and subject to revision by the source. This page is for general information and is not investment advice.
Company financials sources

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