| Peak sun hours per day | 4.8 – 5.5 |
|---|---|
| Annual kWh per kW installed | 1,350 – 1,650 |
| Typical system size | 6.5 – 8 kW |
| Electricity rates | Below the national average |
| Export credit regime | No statewide export mandate |
How Oklahoma credits the power you export
There is no statewide rule requiring utilities to credit exported power at a set rate. What you are paid is a decision your specific utility makes, and it can differ enormously between two utilities an hour apart.
This is the case where the utility matters more than the state. Two identical roofs on either side of a service-territory boundary can have quite different payback.
Which specific tariff applies to you is a question for your utility, not for Oklahoma as a whole — several utilities operate in most states and their terms differ. Check the current rules before you sign anything.
The general mechanics are in net metering explained; this is how they land in Oklahoma.
What a system costs here
Oklahoma pricing sits broadly within the national band of $2.50–$3.50 per watt before incentives, so a typical 6.5 – 8 kW system lands somewhere around $16,000–$28,000 before credits. Local labour rates, permitting fees and whether you need an electrical panel upgrade move that more than the panel brand does. Full breakdown in what solar panels cost.
Incentives that stack in Oklahoma
| Layer | What it does |
|---|---|
| Federal clean energy credit | A federal credit against the cost of a residential system. Federal incentive law changed in 2025, so confirm the current rate and eligibility before you count on it. |
| Export credit | No statewide export mandate — no statewide mandate is what Oklahoma generally applies, subject to your specific utility's tariff. |
| State and local layers | Property-tax and sales-tax exemptions, utility rebates and certificate markets exist in many states and change often. DSIRE lists what is live where you are. |
When solar is a poor fit in Oklahoma
- A roof with less than about ten years of life left — replacing it later means paying to remove and reinstall the array.
- Heavy shade from trees or neighbouring buildings for much of the day. Micro-inverters help at the margin; they do not manufacture sunlight.
- Electricity is cheap in Oklahoma, so a small bill leaves little to offset. Under roughly $80 a month, the payback usually stops making sense.
- A utility that offers no export credit at all. Confirm what yours pays before sizing anything — in this state that is the single biggest variable.
- Planning to move within about five years. You will likely recover some of it in the sale price, but not reliably all of it.
The universal disqualifiers apply here too — renting, a roof near end of life, or moving within a few years. See roof age and solar and what happens when you sell.
Oklahoma solar questions
Is solar worth it in Oklahoma?
It depends on three things: what you pay per kilowatt-hour, what your utility credits you for exported power, and how much unshaded roof you have. Oklahoma runs no statewide mandate and residential rates land around 11–14¢ per kWh, so the honest answer is that it works well for some homes here and poorly for others. The quickest test is your own bill: the larger it is, the more there is to offset.
How many solar panels does a house in Oklahoma need?
A typical household using about 10,500 kWh a year needs roughly 6.5 to 8 kW here, which is about 16 to 20 modern 400 W panels. Your own consumption matters far more than any state average — pull twelve months of bills before sizing anything.
How much power does solar produce in Oklahoma?
Plan on roughly 1,350–1,650 kWh per year for every kilowatt installed, based on 4.8–5.5 peak sun hours a day and a normal system derate. A 6.5 kW system therefore produces somewhere near 8,775 kWh a year — well above that in June, well below it in December.
What does Oklahoma pay for exported solar power?
No statewide export mandate. There is no statewide rule, so your utility decides — and the answer varies a great deal between utilities. Export rules are set by commissions and do change, so confirm the current terms rather than relying on any published summary, including this one.
Do solar panels work in Oklahoma winters?
Yes, at reduced output. Panels are more efficient when cold; the losses come from shorter days and lower sun angles, not from temperature. Expect production to swing substantially between summer and winter, which is what annual figures are for.
General information for Oklahoma homeowners, not financial, tax or engineering advice. Figures are planning ranges; your own quote depends on your roof, your consumption and your utility.