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Home battery storage by state: how many solar homes add a battery
Alongside its solar count, EIA's net metering data records batteries paired with rooftop systems. In 2024 utilities reported 297,550 residential battery installations paired with solar — 5.9% of net-metered solar homes — with 2,277 MW of capacity. California accounts for 221,123 of them, about three in four nationwide; Michigan (18.4%) and Hawaii (18.2%) have the highest attachment rates in the country.
| State | Solar-paired battery installations, 2024 | Battery capacity | Share of the state's solar installations |
|---|---|---|---|
| California | 221,123 | 1,607.9 MW | 10.6% |
| Hawaii | 17,953 | 142.3 MW | 18.2% |
| Arizona | 10,345 | 105.4 MW | 3.3% |
| Utah | 8,642 | 70.1 MW | 10.7% |
| Michigan | 4,316 | 27.7 MW | 18.4% |
| New York | 4,006 | 36.5 MW | 1.8% |
| Texas | 3,634 | 35.7 MW | 2.7% |
| Nevada | 3,143 | 25.6 MW | 2.3% |
| Florida | 3,120 | 26.9 MW | 1.1% |
| Washington | 2,579 | 21.5 MW | 4.4% |
| Massachusetts | 2,528 | 28.1 MW | 1.3% |
| Ohio | 1,647 | 10.9 MW | 6.0% |
Summed from utility-level filings in EIA's Form EIA-861 2024 net metering data file. The share column is paired battery installations divided by the state's net-metered solar installations from the same file — arithmetic on the published counts.
A battery shifts your own solar into the evening. Start from your usage and your state’s prices — run your kWh at published average rates.
Open the energy cost calculatorWhat the numbers mean
Paired is the norm; standalone is rare. The same filings count only about 2,400 residential batteries not paired with solar in all reporting states combined — home storage in the U.S. is, for now, an accessory to rooftop solar, not a separate market.
Attachment follows local rules and local prices. Hawaii pairs a battery with roughly one solar installation in five — 18.2%, a share only Michigan edges past, at 18.4% — in the state with the country's highest average electricity price (42.86¢ per kWh in 2024). California's volume reflects its market size and its export-compensation rules, which reward storing midday solar for evening use. EIA records the counts; it does not publish battery prices, so — as with panels — this page carries no equipment-cost figures.
Limits of the count
- Counts come from utilities' net metering reports; reporting practices differ, and small numbers in lightly reporting states should be read as "at least this many."
- Capacity is nameplate power (MW) as filed; usable energy capacity (MWh) is filed too inconsistently across utilities to total honestly, so we do not total it.
- Third-party-owned systems are filed in a separate schedule of the same survey and are outside these totals.
Sources: EIA — Form EIA-861 2024 data files, Net Metering (utility filings, summed by state) · EIA — Electric Sales, Revenue & Average Price 2024, Table 5A (Form EIA-861). Researched October 2026 — energy prices move with seasons and markets; confirm the current rate on your own bill.
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