Solar resource
Your solar production in Cincinnati
4.45 avg peak sun hours/day
Monthly avg solar radiation (kWh/m²/day) — Cincinnati, OH. Bars update to show estimated kWh production when you use the calculator above.
Utility rate
Duke Energy Ohio electricity rate
$0.141/kWh residential
- Utility
- Duke Energy Ohio
- Residential rate
- $0.141/kWh (blended)
Duke Energy Ohio customers can interconnect rooftop solar under Ohio's net metering and interconnection rules. Cincinnati sits at roughly the same latitude as Philadelphia and Baltimore but with a slightly lower retail rate, making right-sizing and self-consumption particularly important for Cincinnati payback economics.
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Incentives
Available solar incentives in Cincinnati, OH
Federal + state + utility
| Incentive | Type | Value | Scope |
|---|---|---|---|
| Federal Solar Investment Tax Credit (ITC) | Tax Credit | 30% of system cost | Federal |
| Ohio SREC market | Srec | Eligible systems can generate Ohio SRECs, but market depth and pricing are limited | State |
| Duke Energy Ohio net metering / interconnection | Net Metering | Residential interconnection with customer bill-credit treatment under Ohio regulatory rules | Utility |
Incentive amounts and eligibility rules change. Verify current terms with your installer and a tax professional before installation.
System cost
Cost breakdown (6 kW default)
- Gross system cost
- $22800
- Federal ITC (30%)
- −$6840
- Net system cost
- $15,960
- Installed cost per watt
- $2.85/W
Great Lakes / Midwest residential benchmark used for educational modeling; utility bill offset uses interpolated local Duke Energy Ohio residential rates.
Payback & long-term value
25-year outlook
- Annual savings (yr 1)
- $1,404
- Simple payback period
- 11.4 years
- 25-year net savings
- $33500
- Assumed annual rate increase
- 2.5%/year
25-year estimate uses flat electricity rate for conservative baseline. Accounting for 2.5% annual rate increases, lifetime savings increase substantially.
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How it works
How solar savings work in Cincinnati
- Cincinnati has a workable mid-latitude solar resource Cincinnati averages 4.45 peak sun hours per day — slightly more than Cleveland thanks to fewer lake-effect cloud days — and produces roughly 9,960 kWh per year from a standard 8 kW system.
- Duke Energy Ohio net metering keeps export value intact Duke Energy Ohio credits excess solar exported to the grid at the retail rate under Ohio interconnection rules. This means surplus summer production retains value against winter bills.
- Duke Energy Ohio's rate makes self-consumption the primary savings driver At a modeled rate near $0.141/kWh, Cincinnati's per-kWh savings are meaningful but below the Mid-Atlantic average. Right-sizing the system to maximize self-consumption is the most effective way to shorten payback.
- Ohio SRECs are secondary upside only Ohio's SREC market is real but thin. Treat it as a bonus layer rather than a core payback driver. Monitor SRECTrade.com for current Ohio SREC pricing.
- The 30% federal ITC is the largest upfront incentive In the installation year, claim a 30% federal ITC on the full installed cost — $6,840 on a $22,800 system — reducing federal income taxes owed. Without the ITC, Cincinnati solar payback is challenging.
- Simple payback is approximately 11.4 years At $1,404/year in bill savings and $15,960 net system cost after the ITC, simple payback is approximately 11.4 years. Duke Energy Ohio rate increases and Ohio SREC income improve this timeline.
FAQ
Common solar savings questions for Cincinnati, OH
How much can I save with solar in Cincinnati, OH?
A modeled 8 kW Cincinnati system produces about 9,960 kWh per year and saves roughly $1,404 per year at Duke Energy Ohio's interpolated rate of $0.141/kWh. After the 30% federal ITC ($6,840), net system cost is about $15,960 — giving a simple payback of approximately 11.4 years.
Does Duke Energy Ohio allow rooftop solar interconnection?
Yes. Cincinnati homeowners can interconnect residential solar with Duke Energy Ohio under Ohio net metering and interconnection rules, subject to the normal application and approval process.
Does Ohio still have SRECs?
Yes, but the Ohio SREC market is thin. Ohio SREC prices and demand are much weaker than in premium northeastern SREC states. Treat Ohio SREC income as bonus economics rather than a primary payback driver.
Is Cincinnati a good solar market?
Cincinnati is a workable but moderate solar market. The economics depend mainly on self-consumption, the federal ITC, and Duke Energy Ohio's stable retail rate rather than on a strong local incentive stack. Cincinnati's sun resource is slightly better than Cleveland's, which helps.
How many solar panels does a Cincinnati home need?
Most Cincinnati homes land in the 6–10 kW range — roughly 16–26 panels at 380–400 W each. Use the calculator with your monthly Duke Energy Ohio bill to estimate your ideal system size. Because winter production slows significantly, size from annual consumption rather than monthly peaks.
How does the Cincinnati deck permit page connect to this project?
If you are planning multiple exterior home improvements, the Cincinnati deck permit guide covers the B&I process, 2019 Residential Code of Ohio requirements, and frost-depth footing rules for Cincinnati's 24-inch frost line. Many Cincinnati homeowners plan solar and deck projects in the same budget cycle.
Sources
Data sources and freshness
- https://developer.nrel.gov/docs/solar/pvwatts/v8/
- https://www.duke-energy.com/home/products/solar-buyback
- https://puco.ohio.gov/utilities/electricity/educational-materials/net-metering
- https://www.energy.gov/eere/solar/homeowners-guide-federal-tax-credit-solar-photovoltaics
- https://dsireusa.org/
- https://www.srectrade.com/
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Disclaimer: This calculator provides estimates for informational purposes only — not financial or investment advice. Solar savings depend on actual shading, roof orientation, energy usage patterns, rate changes, and equipment performance. Consult a licensed installer and a tax professional before making purchasing decisions. Verify incentive eligibility with official sources. Data last verified 2026-04-19.