Oklahoma has strong sun and cheap power, and the two nearly cancel out. What tips the answer is whether your exported power is used up inside the same monthly bill. If it is, a typical owned system pays back in about 14 years in our OG&E example. If it is left over at month end and earns OG&E’s wholesale-level price, the same system does not pay for itself within the 25 years panels usually last. At PSO, our per-utility figure is about 12.1 years, simple payback before incentives.
PSO, simple payback before incentivesAbout 12.1 years
OG&E, used up or left overAbout 14 to over 25 years
Typical owned 7.42 kW Oklahoma system at $19,589 cash (EcoGen Solar Cost Index, September 2026). OG&E cases: 13.70¢ EIA price; our assumptions: 40% of the solar power used at home as it is made, 60% sent to the grid, $223 a year in owner costs. See the math.
- System size: built to your monthly use, not past it. Month-end leftovers earn a few cents.
- Utility: OG&E and PSO follow the state rule. Edmond and other city utilities set their own.
- Price per watt: cheap hardware is Oklahoma’s edge. A high quote gives it away.
2026 rules: home systems finished after December 31, 2025 get no federal homeowner credit (IRS). OG&E’s higher summer price for month-end leftovers ended on September 30, 2026; until next June, all leftover power earns the off-peak price.
How we checked this guide
Rules come from the Oklahoma Corporation Commission, credits and charges from the OG&E and Edmond rate sheets, tax facts from the state and the IRS, and prices from the U.S. EIA. Assumed numbers are labelled.
The writer and checker shown above are EcoGen staff. EcoGen is paid when homeowners request quotes, which is explained beside the quote form. Read our editorial standards.
Strong sun, low power prices: why Oklahoma lands in the middle
Solar value is two numbers multiplied: the power your panels make, and what that power would have cost. Oklahoma is good on the first: each kW makes about 1,554 kWh a year, at about $2.64 per watt. It is weak on the second. Oklahoma homes paid 13.58¢ per kWh from January to July 2026, about 25% below the U.S. average of 18.19¢ (EIA).
No state rebate or tax credit pays for home panels, and the federal credit is gone. So the case rests on your price, your system size and your utility. Read each row across.
Monthly fit
Worth a closer look
Year-one output at or below a year of your own use.
Pause and check
More output than you use in most months; the extra sells at a wholesale-level price.
Check next: expected output by month next to your last year of bills.
Who bills you
Worth a closer look
OG&E or PSO, both under the state rule.
Pause and check
Edmond Electric, another city utility, or a co-op whose rate sheet you have not read.
Check next: the rate sheet the quote used.
Peak load and plans
Worth a closer look
Any new big load, like an electric car, is already on your bills.
Pause and check
A system sized for a load you have not added; it can break the 125% limit.
Check next: your peak demand in kW and the size allowed.
Price
Worth a closer look
A cash price near the Index’s $19,589 for 7.42 kW ($2.64 per watt).
Pause and check
A quote well above that, or a loan dealer fee.
Check next: cash and financed prices, with APR and fees.
Roof and time in home
Worth a closer look
An unshaded roof with years of life, and plans to stay past payback.
Pause and check
A roof due for replacement, or a move within about 14 years.
Check next: the roof’s age and a shade report.
Same Oklahoma roof, two prices for the power you send out
A kWh (kilowatt-hour) is the unit your power bill counts. An export credit is what you get for each kWh your panels send to the grid. Simple payback is the years your savings take to cover what you paid: net cost divided by yearly savings. Here is the typical system with OG&E, its exports used up inside each monthly bill.
- Cash price
- $19,589
- Confirmed incentives
- $0
- Year-one production
- 11,533 kWh
- Used at home / exported
- 40% / 60%
- Average price (EIA, 12 months)
- $0.137/kWh
- Export credit
- $0.137/kWh
- Owner-cost allowance
- $223/yr
- Used-at-home value
11,533 × 40% × $0.137$632/yr - Export value
11,533 × 60% × $0.137$948/yr - Yearly savings after owner costs
$632 + $948 − $223$1,357/yr - Simple cash payback
$19,589 ÷ $1,357about 14.4 years
Inputs: the EcoGen Solar Cost Index typical Oklahoma system (7.42 kW, $19,589 cash, September 2026; 1,554 kWh per kW a year, so about 11,533 kWh in year one). No rebate or credit to subtract. Exports are valued at the full price because the state rule nets them within the month: the best case. The 13.70¢ EIA average includes fixed charges, so the rate you avoid is likely a little lower. Our assumptions: 40% of the solar power used at home as it is made, 60% sent to the grid, and $223 a year in owner costs ($30 per kW, including a reserve for a new inverter).
Now let every exported kWh be left over at month end, as happens when a system makes more than the house uses. That leftover earns the utility’s avoided energy cost. We use OG&E’s newest posted off-peak price, 3.36 cents per kWh.
| Scenario | Export credit | Export value | Yearly savings | Simple payback |
|---|---|---|---|---|
| Used up within the month | $0.137/kWh | $948 | $1,357 | about 14.4 years |
| Left over at month end | $0.0336/kWh | $233 | $642 | about 30.5 years |
That one input is worth about $716 a year on about 6,920 kWh of exports. At the month-end price the system does not pay for itself within the 25 years panels usually last. Real homes land between the rows: leftovers build up in mild spring and fall months, when air conditioners rest. Both rows assume flat prices, though Oklahoma prices rose about 8% in early 2026 against a year earlier (EIA). OG&E has no figure in our per-utility payback file yet, so these two OG&E cases are ours. At PSO our per-utility figure values all 11,568 kWh at 13.963¢, PSO’s EIA average less its $17.30 monthly charges: $1,615 a year and about 12.1 years before incentives, with no upkeep or price rises counted.
Try your own Oklahoma quote
The tool starts with exports used up within the month. Enter your own quote and press Calculate; for a bigger system, lower the export credit toward 3.36 cents per kWh. Nothing you enter is sent anywhere.
Example result
about 14.4 years
simple cash payback
- Used-at-home value
- $632/yr
- Export value
- $948/yr
- Owner costs
- −$223/yr
- Yearly savings
- $1,357/yr
- Net cost
- $19,589
Starts with exports used up within the month. If your system will make more than you use in some months, lower the export credit toward your utility’s avoided cost. Flat first-year values; rates, panel wear and repairs will change the result.
How the monthly rule values your solar power
The rule is in state law (17 O.S. 156) and the Corporation Commission’s rules (OAC 165:40-9), and covers OG&E and PSO. Power you use as it is made replaces power at the full price. Power you send out is set against power you buy in the same billing month, so noon output on Tuesday can cover Friday evening. Only what is left at month end earns the utility’s avoided energy cost, a wholesale-level price, as a dollar credit on a later bill.
Used at home: 4,613 kWh. Each one replaces power you would have bought, so it saves the full variable rate ($0.137 here).
Sent to the grid: 6,920 kWh. These earn whatever your utility pays for exports ($0.137 here). Here that matches the price you pay, but check your utility’s rule.
The count starts again every month: a sunny April’s extra does not cancel July’s use. Only the energy part of the bill changes; the customer charge, fees and taxes stay.
OG&E posts its avoided cost daily on its NEBO price page, as a 30-day average; the price on your meter reading date counts. In August and September 2026 the off-peak price stayed between 3.11 and 3.67 cents per kWh. A higher on-peak price applies only weekdays from 2 to 7 p.m., June 1 through September 30.
At OG&E, NEBO is only for its standard time-of-use plans. PSO’s table dated September 23, 2026 credits August power, on September bills, at 3.65¢ off-peak and 3.93¢ on-peak. Ask PSO for the price on your billing month.
Get quotes built on a year of your bills
Ask each installer how many kWh it expects left over at month end, and what price it gave them.
Solar providers that serve your area may contact you, and they pay EcoGen for the introduction. How we make money.
Why bigger is not better on an Oklahoma roof
Each kWh past your monthly use sells for a few cents, so extra panels earn a fraction of what the rest earn. The typical 7.42 kW system makes about 11,533 kWh a year; compare that with a year of your bills before you accept any size.
The rule also caps a net metered system at 125% of your peak load, the most power your home draws at one moment, in kW. OG&E sets it from your highest demand in the 12 months before you apply. If an electric car or heat pump is coming, add the load first, then size the array.
Edmond Electric, co-ops and other utilities outside the rule
The state rule does not reach city utilities, and many co-ops set their own prices. Edmond Electric shows the difference. Its Schedule R-DG gives no credit for power you send out: 100 kWh sent to the grid earn $0. A solar home pays a customer charge of $30.00 a month, against $14.00 a month on the standard rate, which is $192 a year more.
Only power used as it is made saves money there. Home systems are limited to 10 kW. Payback there is longer than both cases above.
On a co-op or other city utility, get its solar rate sheet first. Our Oklahoma incentives guide covers each utility’s credit in more detail.
Six lines an Oklahoma quote should spell out
Get two or three quotes and line them up. A quote that skips these cannot back up its payback number.
- Your utility and its rate sheet. NEBO at OG&E, Schedule R-DG at Edmond, or PSO’s or your co-op’s sheet.
- Month-end leftovers. The kWh a year expected left over, and the price assumed. At OG&E: 3.36 cents per kWh on September 30, 2026.
- Size against peak load. System kW next to your peak demand, within 125% of peak load.
- Rate plan. At OG&E, NEBO needs a time-of-use plan. Ask which plan the savings assume.
- No tax credit subtracted. The federal credit ended for systems finished after December 31, 2025, and Oklahoma has none.
- Cash and financed prices. Both totals side by side, with any dealer fee shown.
Compare Oklahoma solar quotes
Ask each installer to size from your monthly use and name your utility. Enter your ZIP code to request quotes from solar providers that serve your area.
How EcoGen is paid
EcoGen America does not sell or install solar. When you request quotes, we pass your request to solar providers serving your area, and they pay us for the introduction. Providers can include installers, solar marketplaces and lead exchanges, and more than one may contact you. You never pay us.
More on solar in Oklahoma
- Oklahoma solar guide: utilities, incentives and installers in one place
- Oklahoma solar companies: compare local installers before you request quotes
- Oklahoma solar incentives: bill credits by utility, and no rebate
- What solar costs in Oklahoma
- Free solar panels in Oklahoma: what a no-cost offer really means
- Are solar panels worth it? The national guide and payback calculator
All 51 state guides
Oklahoma solar questions
Are solar panels worth it in Oklahoma?
They can be, for an owned system sized to your monthly use with OG&E or PSO. At PSO our per-utility figure is about 12.1 years. In our OG&E example the typical system pays back in about 14 years when exports are used up within the month. When they are left over, it does not pay for itself within the 25 years panels usually last. Strong sun and a low price per watt help; cheap power holds it back.
What is the payback period for solar panels in Oklahoma?
About 12.1 years at PSO in our per-utility figures, simple payback before incentives. In our OG&E example, about 14 years for a 7.42 kW system at $19,589 cash when exports are used up within the month, and about 31 years, longer than panels usually last, when they are left over. These are simple paybacks with flat prices. Oklahoma prices rose about 8% in early 2026 against a year earlier, which would shorten them if it lasts.
How much does Oklahoma pay for exported solar power?
With OG&E or PSO, exported power first offsets power you buy in the same billing month. What is left at month end earns the utility’s avoided energy cost as a credit on a later bill. OG&E posts its price daily: 3.36 cents per kWh off-peak on September 30, 2026. PSO’s table dated September 23, 2026 credits August power at 3.65 cents off-peak and 3.93 cents on-peak.
Does Oklahoma have a solar tax credit or rebate?
No. Oklahoma’s Form 511-CR lists no state income tax credit for home solar, and we found no state or OG&E rebate for home panels. The federal homeowner credit ended for systems finished after December 31, 2025. So an Oklahoma buyer pays the full price, and a quote that subtracts a credit is wrong.
Should I get a bigger solar system in Oklahoma?
Usually not. Power left over at month end earns a wholesale-level price, so capacity beyond your monthly use earns a fraction of the rest. The state rule also limits a net metered system to 125% of your peak load. If you plan an electric car or heat pump, add the load first.
Is solar worth it with Edmond Electric?
It is harder. Edmond’s Schedule R-DG gives no credit for power you send out, and a solar home pays a $30.00 a month customer charge against $14.00 a month on the standard rate, $192 a year more. Home systems are limited to 10 kW. Only power you use as it is made saves money there.
Sources, method and corrections
The OG&E example uses the EcoGen Solar Cost Index typical Oklahoma system (September 2026) and the EIA 12-month average price. The PSO figure comes from our per-utility payback file of October 19, 2026. Exports earn the full price in the first case (used up within the month under the state rule) and OG&E’s newest posted off-peak avoided cost in the second. Our assumptions, not measured values: 40% of the solar power used at home as it is made and 60% sent to the grid, and $223 a year in owner costs ($30 per kW, including a reserve for a new inverter). The 40/60 split is a planning assumption based on home-use research, not a measured Oklahoma average. Simple payback uses flat first-year values with no rate rises. The calculator runs in your browser and sends nothing.
Spotted an error? Tell us through our corrections and feedback process.
- Oklahoma Corporation Commission: Net metering in Oklahoma (state rule, 125% peak load limit; checked September 30, 2026)
- Oklahoma Corporation Commission: OAC 165:40, Subchapter 9 (monthly billing period, net excess at avoided energy cost)
- OG&E: Standard Pricing Schedule NEBO (30-day average avoided cost, on-peak season, payout rule)
- OG&E: NEBO credit rates for net excess energy (daily posted price; newest row September 30, 2026)
- City of Edmond: Schedule R-DG (no export credit, solar customer charge, home size limit)
- City of Edmond: Residential rates (standard customer charge)
- Oklahoma Tax Commission: 2025 Form 511-CR (no state credit for home solar)
- U.S. EIA: average residential electricity price by state (12-month and year-to-date averages; checked October 5, 2026)
- IRS: Residential Clean Energy Credit (not available for property installed after December 31, 2025)
- EcoGen Solar Cost Index, September 2026: what solar costs in Oklahoma (typical system size, price, output and electricity price)
