Oklahoma solar calculator
Size a Oklahoma home solar system from your electric bill — kW, panel count, roof area, true cost with no federal credit for 2026 installs, and payback.
Quick answer: At $0.144/kWh and 5.1 peak sun hours, a $200/month bill needs about 11.89 kW — 29 × 410 W panels covering ~58 m². Gross cost is ~$30,914 with no federal credit for systems installed after 2025, offsetting $2,400 a year for a ~12.9 year payback.
Your details
Ballpark, not gospel. Ballpark, not gospel. Sized at 78% real-world output with the Oklahoma sun-hour average (5.1 peak sun hours) — confirm shading, roof angle and the fixed charges on your utility’s rate sheet with a local installer before buying, since some utilities levy higher fixed monthly charges on solar homes. Oklahoma nets exports at the full retail energy rate only up to that month’s consumption; monthly surplus is bought at avoided energy cost (~2–8¢/kWh) with no annual banking. The calculator values all generation at your retail rate; exports earn far less, so real savings track self-consumption and batteries.
The 30% credit ended — what changed
The residential clean energy credit (26 U.S.C. § 25D) gave homeowners a 30% credit on solar installed from 2022 through 2025. The July 2025 tax law ended it: no credit is available for property placed in service after December 31, 2025. That is why every figure on this page is ~30% higher than pre-2026 guides show. If your system went live by the end of 2025, tick the box above to see the credit applied; leased systems may still benefit because the leasing company claims the commercial credit. Source: IRS — Residential Clean Energy Credit.
Typical Oklahoma system sizes by monthly bill
| Monthly bill | System size | Panels (410 W) | Net cost (no 2026 federal credit) | Payback |
|---|---|---|---|---|
| $100 | 6.15 kW | 15 | $15,990 | 13.3 years |
| $200 | 11.89 kW | 29 | $30,914 | 12.9 years |
| $300 | 17.63 kW | 43 | $45,838 | 12.7 years |
Computed at $0.144/kWh, 5.1 peak sun hours and $2.60/W installed, with no federal credit for 2026 installs. Run your exact bill above.
Solar in Oklahoma: the details
Solar cost in Oklahoma
Solar pricing in Oklahoma sits in the national middle, with good sun to work with. The EnergySage marketplace averaged about $2.60 per watt installed in 2026, with market quotes typically landing $2.21–$2.99/W — within the $2.50–$3.50/W national band. A typical ~13 kW system grosses around $33,800, with no federal credit for 2026 homeowner installs and no state incentive to lean on.
What moves the number: roof complexity, panel tier, and how competitive the quote market is in your metro. Get at least three quotes — spreads of $0.50/W between installers are common.
Export rules: getting paid for surplus power
Oklahoma nets at the full retail energy rate — but only within each billing month. Under 17 O.S. 156 and OCC rules (OAC 165:40-9), exports offset your consumption at the full retail energy rate up to that month’s usage; any monthly surplus is bought at the utility’s avoided energy cost (e.g. OG&E ~2–8¢/kWh). There is no annual kWh banking — the netting clock resets every month.
Practical takeaway: size to monthly consumption, not annual — an oversized system wastes surplus every month. And check your utility’s rate sheet: some Oklahoma utilities levy higher fixed monthly charges on solar homes.
Oklahoma solar incentives
No major statewide solar incentive was found in 2026 sources. Oklahoma has no state income tax, so a state income tax credit isn’t possible — and there is no federal credit for 2026 installs. Before signing, check your utility’s rate sheet for solar-specific fixed monthly charges, which some Oklahoma utilities impose on net-metered homes.
Is solar worth it in Oklahoma?
Verdict: marginal on the numbers. The calculator puts a $200/month bill at a ~12.9-year payback with no federal credit — low electricity rates and monthly netting with no annual banking cap the upside. This only works if you size to monthly consumption and self-consume aggressively; an oversized system wastes surplus every month at 2–8¢/kWh.
Questions people actually ask
Straight answers, no fluff. Then run your own numbers above.
How many solar panels do I need in Oklahoma?
It follows your bill. At the Oklahoma average of $0.144/kWh and 5.1 peak sun hours, a $200/month bill needs about an 11.89 kW system — roughly 29 × 410 W panels covering ~58 m² of roof.
What is the average cost of solar panels in Oklahoma in 2026?
The EnergySage marketplace averaged about $2.60 per watt installed in 2026, with market quotes typically $2.21–$2.99/W — within the national $2.50–$3.50/W band. A typical ~13 kW system grosses around $33,800, with no federal credit for 2026 homeowner installs.
Does Oklahoma have net metering?
Sort of. Exports are netted at the full retail energy rate only up to that billing month’s consumption (17 O.S. 156 / OAC 165:40-9); any monthly surplus is bought at the utility’s avoided energy cost (~2–8¢/kWh) — there is no annual kWh banking.
Does Oklahoma offer any solar tax credit or rebate?
No major statewide solar incentive was found in 2026 sources. Oklahoma has no state income tax, so a state income tax credit isn’t possible; and watch for higher fixed monthly charges some utilities levy on solar homes.
Is the 30% federal solar tax credit still available?
Not for homeowner purchases anymore. The residential clean energy credit (26 U.S.C. § 25D) is not available for property placed in service after December 31, 2025, under the July 2025 tax law (Public Law 119-21). Systems installed by the end of 2025 can still claim 30%, and leased systems may still benefit because the leasing company claims the commercial credit instead. (Source: IRS — Residential Clean Energy Credit.)
Is solar worth it in Oklahoma?
The calculator puts a $200/month bill at a ~12.9-year payback with no federal credit — marginal, driven by low rates and monthly netting with no annual banking. Size to monthly consumption and self-consume; surplus is worth cents.
Figures last checked October 2026. Sources: EIA Electric Power Monthly (July 2026: 14.35¢/kWh), NREL PVWatts/NSRDB (~4.6–5.6 peak sun hours), DSIRE, Oklahoma Corporation Commission; IRS — Residential Clean Energy Credit.
More US solar calculators
Compare other states: Texas, Florida, California, Arizona, North Carolina, New Mexico, New York, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina. And the national US solar calculator for country averages.
Comparing quotes? The solar cost calculator breaks down cost per watt and the solar ROI calculator maps your payback year by year. Going deeper: installation cost guide, how net metering works, how much you can save with solar and the solar batteries guide.