Ohio solar installation & market data
The Ohio solar market at a glance.
Ohio has about 32,697 solar systems totalling 543.0 MW, as reported by its utilities through July 2026. 50 MW of residential solar was added in the trailing twelve months, up 6.3% on the twelve months before. 1.0% of owner-occupied homes have gone solar and 6.5% of solar customers have a battery. SolarDNA tracks 4,305 individual installations here, from 0 installers.
Ohio's SolarDNA Market Score: 36 out of 100.
Ohio scores 36 out of 100 on SolarDNA's Market Score, a 0-to-100 scale benchmarked against every other state market. That is higher than 37% of U.S. states. Grade C (Good).
The score combines 5 subscores, each computed from observed market data:
- Velocity (56): trailing-12-month growth in solar added versus the prior twelve months, so accelerating markets score higher.
- Cost (50): median installed $/W relative to the national median (a cheaper market scores higher).
- Incentives (28): net-metering coverage, RECs a new system can earn, state tax credit, rebate program and tax exemptions (components listed below).
- Resource (15): annual solar irradiance, so the same system produces more where this score is high.
- Depth (26): proven demand: how many systems are already installed, with a bonus for markets that show adoption without being saturated.
Low-value SREC market.
Federal: Federal residential credit (25D) ended for systems placed in service after Dec 31, 2025. Third-party-owned systems can still use the commercial credit (48E) through 2027 under construction-start rules.
State-level averages hide wide variation. Here's how to go deeper in the app:
- 1Narrow to a zip codeZip metrics give a far more accurate picture of the exact neighborhoods you are considering.
- 2Apply filtersFilter by score, growth, $/W, adoption and permits to reach the markets that actually match your model.
- 3Benchmark the installersSee who already wins there, how fast they are growing, and what they charge per watt.
How SolarDNA defines these metrics
Solar systems
Solar systems is the market-size figure: the systems utilities report on their lines, plus an estimate (sized from reported capacity) for systems outside net metering. It is current for every state.
How SolarDNA calculates solar systems →Tracked installations
Tracked installations are the individual residential, commercial and utility-scale systems SolarDNA holds a record for. SolarDNA de-duplicates the same system across records. Pricing, installers, equipment and every zip-level figure come from these records.
How SolarDNA calculates tracked installations →Median installed cost
Median installed cost is the middle price per watt (DC) that homeowners paid for a residential system in the trailing twelve months, before incentives. Quartiles show the spread.
How SolarDNA calculates median installed cost →Adoption rate
Adoption rate is the share of owner-occupied homes with a residential solar system. It measures how saturated a market is, not how fast it is growing.
How SolarDNA calculates adoption rate →12-month growth
For a state, growth compares the residential solar capacity added in the trailing twelve months with the twelve months before, from utility-reported totals with one-off reporting corrections smoothed out. For cities and zip codes it compares tracked installations.
How SolarDNA calculates 12-month growth →Battery share
Battery share is the portion of a state's solar customers whose system includes a battery, as reported by utilities.
How SolarDNA calculates battery share →Permits
Permits count the solar building permits filed in the last twelve months. They lead installations by several months, which makes them the earliest read on demand.
How SolarDNA calculates permits →Market Score
SolarDNA's Market Score grades each market from 0 to 100 on solar sales potential, weighing velocity, cost, incentives, solar resource and installer depth. Markets are benchmarked against every other market in the country, and the letter grade is set on a curve: A is the top 10% of markets, C the middle 40%, F the bottom 10%.
How SolarDNA calculates market score →See what a specific Ohio zip code looks like
Drop in any Ohio zip code and SolarDNA opens its market card: score, installs, median $/W, growth and permits, benchmarked against the state.
Dive deeper into the Ohio market
Market size & momentum
Systems, capacity, monthly additions, battery share and solar customers by utility.
- •How many solar systems are there in Ohio?
- •Is solar still growing in Ohio?
- •Which utility territories are adding the most?
Pricing & economics
Installed $/W, quartiles, system sizes and simple payback.
Growth & adoption
Installs by year, adoption, TAM penetration and battery attach.
Installers
The league table: volume, momentum, system size and pricing per installer.
Utilities & incentives
Retail rates by utility, net metering, SREC value and the planned utility pipeline.
- •What are electricity rates in Ohio?
- •Which utilities offer net metering?
- •How big is the utility-scale pipeline?
How big Ohio's solar market is, and where it is heading
Totals reported by Ohio's utilities through July 2026 (latest months are preliminary)
Trailing-12-month residential capacity added carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Solar customers by utility in Ohio
Net-metered solar customers through July 2026
| Utility | Solar customers | Capacity | Added, 12 mo | Growth | With battery |
|---|---|---|---|---|---|
| Ohio Power Co | 15,773 | 224 MW | 2,624 | ▼ 4.0% | 6.4% |
| Duke Energy Ohio Inc | 6,713 | 79 MW | 514 | ▼ 45.4% | — |
| Ohio Edison Co | 5,206 | 83 MW | 827 | ▲ 4.0% | 12.6% |
| Cleveland Electric Illum Co | 3,453 | 49 MW | 524 | ▼ 16.3% | 10.9% |
| The Toledo Edison Co | 1,051 | 53 MW | 184 | ▲ 74.1% | 5.7% |
| Dayton Power & Light Co | 487 | 6 MW | 23 | — | 5.5% |
What solar costs in Ohio
Residential systems, trailing twelve months
How fast Ohio is going solar
From SolarDNA's installation records, which run through October 3, 2023; current momentum is in the market totals above
Top installers in Ohio
Ranked by installations in this state
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|
Top zip markets in Ohio
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Growth | Score |
|---|---|---|---|---|
| 45701 Athens | 80 | — | — | 38.4 D |
| 44256 Medina | 47 | — | — | 38.2 D |
| 44691 Wooster | 46 | — | — | 38.2 D |
| 43026 Hilliard | 43 | — | — | 38.2 D |
| 43015 Delaware | 40 | — | — | 38.2 D |
| 43123 Grove City | 38 | — | — | 38.2 D |
| 44681 Sugarcreek | 36 | — | — | 38.2 D |
| 43230 Columbus | 33 | — | — | 38.2 D |
| 45140 Loveland | 32 | — | — | 38.2 D |
| 45069 West Chester | 32 | — | — | 38.2 D |
| 43068 Reynoldsburg | 31 | — | — | 38.1 D |
| 44654 Millersburg | 31 | — | — | 38.1 D |
| 43023 Granville | 28 | — | — | 38.1 D |
| 45040 Mason | 28 | — | — | 38.1 D |
| 44104 Cleveland | 27 | — | — | 38.1 D |
Counties in Ohio
Zip markets grouped by county · click for the county market
| County | Zip markets | Installs |
|---|---|---|
| Franklin County | 39 | 526 |
| Hamilton County | 47 | 401 |
| Cuyahoga County | 49 | 279 |
| Athens County | 12 | 135 |
| Delaware County | 9 | 132 |
| Butler County | 11 | 130 |
| Stark County | 27 | 127 |
| Tuscarawas County | 14 | 106 |
| Montgomery County | 30 | 106 |
| Clermont County | 11 | 105 |
| Wayne County | 13 | 98 |
| Summit County | 27 | 98 |
Utilities and retail rates
Implied residential rate per utility
| Utility | Type | Res. customers | ¢/kWh | Net metering |
|---|---|---|---|---|
| Energy Harbor Corp. | Retail Power Marketer | 902,100 | 6.1 | — |
| Ohio Power Co | Investor Owned | 788,464 | 14.3 | ✓ |
| Ohio Edison Co | Investor Owned | 706,029 | 9.6 | ✓ |
| Cleveland Electric Illum Co | Investor Owned | 544,728 | 9.4 | ✓ |
| AEP Energy | Retail Power Marketer | 446,968 | 7.6 | — |
| Dynegy Energy Services, LLC | Retail Power Marketer | 444,458 | 6.8 | — |
| NextEra Energy Services, LLC | Retail Power Marketer | 437,348 | 6.5 | — |
| Duke Energy Ohio Inc | Investor Owned | 399,351 | 10.8 | ✓ |
Other solar markets in Ohio
Three ways to slice Ohio's 4.3K installations
See how the market splits by sector, by battery attach and by installer, updated with every refresh.
See all breakdownsWhen demand peaks in Ohio
Quick answers about Ohio's market
🛡 Why trust SolarDNA data?
How many solar installations are there in Ohio?
How much does solar cost in Ohio?
Is the Ohio solar market growing?
What is the solar adoption rate in Ohio?
Is Ohio a good market for solar sales?
How many solar installers work in Ohio?
How many solar permits were filed in Ohio?
How current is Ohio's solar data?
There's a lot more inside the SolarDNA app.
- ◇Zip and city market pages
- ◇Installer league tables
- ◇Territory builder
- ◇Solarizer deal estimates
- ◇Permit activity where reported
- ◇Export the data