Ohio Solar Savings Calculator

Estimate Your Ohio Solar Bill Impact

This is a conservative planning estimator: you enter usage, cost, system size, how much production you use on-site, and your utility’s export credit. It shows estimated annual production, offset, on-site vs export value, and an approximate annual bill reduction before financing — based on the numbers you enter, not a generic statewide dollar claim.

It is not the decision framework for whether solar is worth it in general — that lives on is solar worth it in Ohio. It is also not a design drawing. For system size (kW) and panel count, use solar system size calculator and how many solar panels do I need in Ohio.

Savings dollars and “% off your bill” depend on your usage and rate. The reliable next step is still your usage and tariff: upload your electric bill.

Inputs That Actually Drive a Savings Estimate

• Annual usage (kWh). Prefer twelve months, not one mild month. Usage sets how large an array can usefully be and how much energy you can offset.
• Rate structure. Generation, distribution, transmission, and riders are separate lines. Solar often cuts energy you buy; it does not automatically erase every fixed or delivery charge.
• Utility net metering / export rules. Under Ohio’s standard utility net metering framework, excess on a standard tariff is generally credited at the energy component of the standard service offer — not as a promise of full stacked retail for every export. Details differ by utility. See Ohio net metering and Ohio solar utilities.
• Roof. Orientation, tilt, shade, and remaining roof life change production. Two houses with the same bill can produce very different annual kilowatt-hours.
• System size and expected production. Size follows usage and roof. Production estimates should be site-based (NREL PVWatts), not a slogan.
• Payment path. Cash, loan, PPA, and Propel change cash flow. Propel is SolSource's prepaid third-party ownership solution. Depending on the applicable program and agreement, the customer may enter into a lease or Energy Services Agreement. We review the actual contract structure and terms before presenting the option. See solar financing in Ohio.

Federal residential clean energy credit (IRS §25D): not available for expenditures made after December 31, 2025 (installation treated as complete when original installation is finished). Programs overview: Ohio solar incentives.

How the Solar Savings Estimate Works

1. Total your annual kWh from the bill or utility history.
2. Estimate annual production for a candidate system size with NREL PVWatts using your ZIP or address, tilt, azimuth, and realistic losses — or start with a labeled Ohio planning factor and then refine (see the kWh worksheet below and the system size calculator).
3. Separate self-consumed kWh from exported kWh in your thinking. Self-consumed energy displaces purchases at your usage rate structure; exports follow your utility’s net metering tariff.
4. Subtract remaining utility charges you will still pay after solar (customer charges, much of distribution/transmission depending on the tariff, and any battery or financing costs).
5. Compare payment structures — cash, loan, PPA, Propel — against continued utility cost for this house, not a statewide average.

Ohio State University Extension’s Ohioline fact sheet on sizing cites about 1,100 kWh per installed kW per year as a planning estimate for Ohio, adapted from DOE sizing steps, and then points readers to PVWatts for better monthly detail. That 1,100 figure is a starting assumption you can change — not a promise for your roof.

Ohio Solar Savings Estimator

Enter your own figures. The calculator stays on this page — no contact upload required to see a planning estimate. Export credit and remaining fixed charges are yours to enter from your tariff or bill.

Need size first? Estimate system size from annual kWh.

Why Your Electric Bill Makes the Estimate More Accurate

The estimator above uses the numbers you type. Your bill confirms twelve-month usage, the real stacked retail rate, export credit treatment, and fixed charges. AEP Ohio, Duke Energy Ohio, AES Ohio, FirstEnergy Ohio companies, and municipal systems do not all settle exports the same way.

Send a recent statement through electric bill solar analysis for a house-specific review — usage, utility, and options (cash, loan, PPA, or Propel). If the bill is simply high, start with high electric bill in Ohio. If the fork is ownership vs a PPA, see solar loan vs PPA. Or start with a solar quote.

Ohio Solar Savings Calculator — FAQs

Can you tell me what I will save before you see my bill?

We can explain the method and help you sketch kWh. A single statewide dollar or “% off” result does not fit every Ohio roof.

Is this the same as “is solar worth it?”

No. Worth-it is a decision screen (bill, roof, utility, payment path, how long you stay). This page is how an estimate is built from inputs. See is solar worth it in Ohio.

Where do production numbers come from?

Site modeling tools such as NREL PVWatts, or a labeled planning factor (OSU Ohioline discusses ~1,100 kWh/kW/yr for Ohio) that you replace with a better site run.

Do I still get the 30% federal residential credit?

IRS materials state the §25D residential clean energy credit does not apply to expenditures made after December 31, 2025. Confirm current rules with a tax professional; overview on Ohio solar incentives.

Sources

• NREL PVWatts Calculator
• OSU Extension Ohioline CDFS-4102 — Estimating the Size of Your Solar Electric System
• IRS — Residential Clean Energy Credit (§25D)
• IRS FAQ — §25D termination / expenditures after Dec 31, 2025
• Solar Brokers — Ohio net metering

Last reviewed: September 2026.