15+ years • 6,500+ jobs completed • 1,500+ Oklahoma homes served
Straightforward pricing
- $99 dispatch on every truck roll. Free on new-install estimates.
- $210 flat residential service call: $99 dispatch plus $111 diagnostic. The diagnostic does not reduce the repair price.
- $99 back: accept my written repair estimate within 10 days and I give the $99 dispatch fee back.
- Free estimates on new installs. No charge to walk through replacement options.
Call (405) 375-4822. 4.8 stars, 300+ Google reviews.
Oklahoma Geothermal Rebates 2026 | What Is Actually Available
Last updated: August 1, 2026
Oklahoma geothermal rebates in 2026 range from a flat few hundred dollars to $24,000, and the thing that decides which one is yours is who sends your electric bill.
If CKenergy Electric Cooperative bills you, the geothermal rebate is $2,000 per ton, capped at $24,000 per member (Source: CKenergy). If a city or town utility bills you, you are on the municipal WISE program instead, which is capped and set town by town. If OG&E bills you, the Oklahoma residential rebates are closed for 2026 and OG&E says they return in 2027. I am Dave Hartzell, IGSHPA-Accredited geothermal installer, working out of Kingfisher for 15+ years. I handle the rebate documentation. 4.8 stars, 300+ Google reviews. Call 405-375-4822 for a free estimate.
I rewrote this page on August 1, 2026 because parts of it had gone stale, and a stale rebate number is worse than no number at all. Somebody signs a contract expecting money that is not there. Below is what I can actually stand behind today, what I have to confirm at quote time, and what is flat out gone. Background reading: geothermal heat pumps.
I break down the real Oklahoma rebate programs on my Ask Dave series. Watch it, then call 405-375-4822 and I will handle the paperwork.
IGSHPA Accredited · ClimateMaster GeoElite Dealer · 47 Years HVAC Experience · 405-375-4822
Oklahoma Has Three Utility Worlds, and Yours Decides the Number
Oklahoma is not one rebate market. It is three of them layered on top of each other, and moving from one to another can change your rebate by thousands of dollars on the exact same equipment.
1. Municipal
A city or town utility department sends your bill. Most of these towns buy their power through the Oklahoma Municipal Power Authority, and OMPA runs the WISE heat pump rebate for them.
2. Electric cooperative
A member-owned co-op sends your bill. CKenergy, Cimarron Electric, OEC, Canadian Valley and Northwestern are all co-ops, and every one of them sets its own rebate independently.
3. Investor-owned
OG&E or PSO sends your bill. These are the big regulated companies, and their residential rebate programs run on an approved cycle that can close for a full year at a time.
The thing that decides your rebate is who sends your electric bill, not which county you live in. Two houses a mile apart on the same section road can sit in two different worlds. That is why the first thing I ask for is your bill, not your address.
It also explains something that surprises people right here at home. CKenergy pays the largest geothermal rebate anywhere near me, and CKenergy does not serve Kingfisher County. That is not a Kingfisher County problem, it is a different world. Most of the city of Kingfisher is on the municipal side, and much of the rural county is served by Cimarron Electric. Both of those have their own geothermal rebate. You are not shut out, you are just in a different lane.
Not sure which utility serves you? The utility name is on the first page of your electric bill. Or call me at 405-375-4822. I know the territory and can confirm which rebate applies to your address, at no charge.
CKenergy Electric Cooperative Members: $2,000 Per Ton
CKenergy runs one of the most aggressive geothermal rebate programs in Oklahoma, and it covers a big share of the territory I work. If CKenergy appears on your electric bill, this is your program. To see whether the payback works for your home, run the geothermal ROI numbers.
$2,000
per ton rebate
Effective January 1, 2026 · Max $24,000 per member
| 2-ton system | $4,000 |
| 3-ton system | $6,000 |
| 4-ton system | $8,000 |
| 5-ton system | $10,000 |
To reach CKenergy directly, use the member service number printed on your electric bill or go to ckenergy.coop.
CKenergy Service Area, Are You Eligible?
CKenergy serves roughly 28,000 member accounts across 10 counties in western and south-central Oklahoma: Blaine, Caddo, Canadian, Comanche, Custer, Dewey, Grady, Kiowa, Roger Mills and Washita. If CKenergy appears on your electric bill, you are in the program. Kingfisher County is not in CKenergy territory, which is the single most common mix-up I correct on the phone.
If you want to run your own numbers before you call me, I built a rebate tool that walks through the math by utility and system size. See calculate your Oklahoma geothermal rebate.
Related reading: CKenergy geothermal rebate counties and the full CKenergy geothermal rebate breakdown.
Municipal Towns: The OMPA WISE Heat Pump Rebate
If a city or town utility department sends your electric bill, you are almost certainly on the WISE program run by the Oklahoma Municipal Power Authority. This is the program most homeowners on this page have never heard of, and it is the one I get asked about least and use most.
OMPA WISE, geothermal electric heat pump
Up to $800.00 per cooling ton per AHRI
Read the words “up to” carefully, because they are the whole story. That number is a ceiling, not a rate. OMPA’s own program summary says the city or town may rebate at any level, and OMPA will match on a 50/50 percent basis up to the amounts shown. Your town decides what it actually pays, and the ceiling is what OMPA will match to. Nobody should quote you a total until the town’s level is confirmed, and I confirm it before I put a number on your estimate.
Dual fuel and replacement systems fall under a separate, much smaller line on the same program, up to $250, and it carries the same 50/50 matching ceiling.
What the system and the job have to do to qualify:
- Minimum EER 17.1, or EER2 16.36. The AHRI certificate is what proves it, and the rebate is calculated per cooling ton off that certificate.
- An operating integrated water heater or desuperheater is required. This one is not optional and it is where most quotes fall down. If the system does not make hot water, it does not qualify.
- New installation or conversion only. A straight like-for-like swap does not earn the full geothermal line.
- An in-home energy audit before installation. It happens before the equipment goes in, not after, and there is no going back and doing it later.
- Licensed contractor. Oklahoma Master HVAC license, which I hold, plus IGSHPA accreditation on the loop side.
- Paperwork submitted within 90 days. Miss the window and the rebate is gone even if everything else was perfect.
- A one-time contractor agreement with the city. I handle that per town so you never see it.
I wrote the whole thing up in detail, including how the town-by-town level works, on my OMPA geothermal rebate page.
Which towns are OMPA members?
Kingfisher, Okeene, Watonga and Edmond are confirmed OMPA member communities. There are more, and I am deliberately not printing a full list here, because membership changes and because each town sets its own participation and its own rebate level. Do not read a town name on this page as a promise of a specific amount. Tell me who bills you and I will confirm your town’s current level before I quote anything.
OG&E Customers: Oklahoma Residential Rebates Are Closed for 2026
Here is the straight answer, and I would rather give it to you now than after you have signed something. OG&E’s Oklahoma residential rebate programs are closed for 2026. I verified that against OG&E’s own site on August 1, 2026. OG&E says the programs return in 2027. There is no residential geothermal rebate to claim from OG&E on a system installed this year.
This page used to carry an OG&E per-ton figure. It was true once and it is not true now, so it is gone. I am not going to quote a number that does not exist just because it makes an estimate look better.
What I will do instead: if OG&E bills you, ask me to re-check the program the day I write your quote. Utility programs open and close without a press release, and 2027 is not that far out. Call 405-375-4822.
Oklahoma Geothermal Rebates, All Programs at a Glance
Your rebate follows your utility, so this table is organized by utility and not by geography. Where I do not have a verified 2026 number, I say so rather than filling the cell in.
| Utility or program | Geothermal in 2026 | Where to confirm |
|---|---|---|
| CKenergy Electric Cooperative | $2,000 per ton, maximum $24,000 per member. Verified current. | ckenergy.coop/energy-efficiency-geothermals |
| OMPA WISE (municipal utilities) | Up to $800.00 per cooling ton per AHRI for a geothermal electric heat pump, and up to $250 for dual fuel or replacement. Both figures are ceilings, not set rates. OMPA’s program summary states the city or town may rebate at any level and OMPA matches on a 50/50 percent basis up to the amounts shown, so the participating utility sets the real level. | Your city utility office · my OMPA rebate page |
| Cimarron Electric Cooperative | $600 flat for geothermal. This is a flat published amount for the job. It is not a per-ton amount, so do not multiply it by system size. | cimarronelectric.com/home/member-center/rebate-form/ |
| OG&E | No Oklahoma residential rebate in 2026. The program is closed and OG&E says it returns in 2027. Ask me to re-check at quote time. | oge.com |
| OEC (Oklahoma Electric Cooperative) | Amount not published for 2026. The rebate sheet I can find is a 2025 document, so I treat the current amount and the open or closed status as unconfirmed and I verify it with OEC at quote time. | okcoop.org/rebates/ |
| KPWA (Kingfisher Public Works Authority) | Municipal utility, so the OMPA WISE program above is the one that applies. I confirm the town’s current participation level directly rather than publishing a figure here. | City utility office · OMPA rebate details |
| Canadian Valley Electric Cooperative | Rebates offered, amount not verified for 2026. I confirm before quoting. | mycvec.coop/reduce-energy |
| CREC (Central Rural Electric Cooperative) | $750 per ton new, $150 per ton replacement, minimum 19.1 EER with an AHRI certificate, 10-ton cap. Published figures. I re-confirm with the co-op before it goes on an estimate. | mycentral.coop/rebates |
| NWEC (Northwestern Electric Cooperative) | $250 per ton new, $150 per ton replacement. Published figures. I re-confirm with the co-op before it goes on an estimate. | nwecok.coop |
Rebate amounts and program rules change without notice. Always verify current amounts directly with your utility before purchasing equipment. I can identify which program applies to your address and provide the documentation utilities require to process a rebate.
The Residential Federal Geothermal Tax Credit Is Expired
Section 25D, the residential clean energy credit that covered geothermal, is expired. The IRS states it directly: the credit is not available for any property placed in service after December 31, 2025. Section 25C, which covered air-source equipment, expired on the same date.
Paying in 2025 does not preserve it. What matters is when the system was placed in service, not when you wrote the check or signed the contract. If your geothermal system goes in service in 2026, there is no residential federal credit on it. I would rather you hear that from me than from your accountant next spring.
Commercial geothermal is a different section of the tax code and it is still alive, which is worth knowing if you own a shop, a church, a clinic or a farm building: see the commercial geothermal tax credit in Oklahoma. Anything to do with your own return goes to your CPA, not to me.
So for a home in 2026, the utility rebate is the real money on the table. That is why getting your utility right matters more than it used to.
I Go Statewide for Geothermal
My daily service trucks run a seven-county area, but geothermal is different: I go anywhere in Oklahoma for it. I have worked geothermal in Kingfisher, Okarche, Hennessey, Watonga, Dover, Loyal, Cashion, Crescent, Piedmont, Edmond, Yukon, Mustang, El Reno, Guthrie, Enid, Geary, Okeene, Fairview, Thomas, Ames and Oklahoma City, and I have gone as far as Lawton, Broken Bow and Durant for the right job. There is one shop, in Kingfisher, and I drive from it. If you want geothermal and you are in Oklahoma, call me.
Why a Local Installer Makes the Difference
I reach co-op and municipal territory alike out of my shop in Kingfisher. I am not a metro contractor who has never seen a loop field in red clay.
I have installed geothermal for co-op members and city utility customers throughout my 15+ years in business. I know the programs, I know the paperwork, and I am accountable to the same community I serve.
- Local accountability, your neighbor, not a metro contractor
- IGSHPA Accredited, the geothermal credential these programs ask for
- ClimateMaster GeoElite Dealer, equipment that meets the EER minimums the rebates require
- 15+ years installing geothermal in central and western Oklahoma
- Full rebate paperwork included, AHRI cert, EER docs, contractor license, IGSHPA cert, completion report
How to Claim Your Geothermal Rebate, Step by Step
Confirm who bills you
Pull out your electric bill and read the utility name on the first page. That one line decides which program applies. Call me and I can usually tell you from the address.
Get a free estimate from me
I assess the property, design the ground loop, select qualifying equipment, and give you an installed price with the rebate confirmed against your actual program, not a number off a web page. Call 405-375-4822.
Pre-installation audit where the program requires one
The municipal WISE program requires an in-home energy audit before the equipment goes in. It cannot be done after the fact, so it gets scheduled before install day, not around it.
My crew installs and documents the system
Loop boring, loop installation, equipment set, desuperheater or integrated water heater tie-in, and commissioning, all documented as it happens.
I hand you the complete documentation package
AHRI certification, EER rating documentation, contractor license, IGSHPA accreditation certificate, installation completion date, equipment invoice and full system specifications.
The application goes in, on time
Every program has a clock on it. The municipal WISE deadline is 90 days from installation. I do not let that one sit.
CKenergy Member Financing, Stack a Low-Interest Loan on Top of Your Rebate
Most CKenergy members do not know this: on top of the per-ton rebate, CKenergy offers low-interest energy efficiency loans to members. You can use the loan to cover the installation cost, then let the rebate pay a large chunk of it back. Terms and current rate come from CKenergy directly, and I do not quote a payment for them.
Example: 4-ton system for a member
| Typical installed cost, 4-ton geothermal | about $24,000 |
| Rebate, 4 tons at $2,000 per ton | less $8,000 |
| Amount left to finance | about $16,000 |
Example only. Actual cost varies by system size, ground conditions and the home. Call me for a free site estimate with your real numbers.
To apply for a CKenergy energy efficiency loan, contact CKenergy using the member service number on your electric bill or visit ckenergy.coop. I provide the system quote and documentation they need to process it. If the co-op loan is not the right fit, I also work with Synchrony, Wells Fargo, Wisetack, Klarna and JB Financing, and financing covers repairs and maintenance plans too, not just installs.
What Hartzell’s Provides to Process Your Rebate
Every one of these programs wants specific documentation from the installing contractor. I provide all of it as part of the installation:
- AHRI certification number for the installed equipment, which is what the per-ton calculation is based on
- EER rating documentation confirming the system meets the program minimum
- Contractor license information, Oklahoma Master HVAC License
- IGSHPA accreditation certificate for the ground loop work
- Completion date and system specifications for the application
- Equipment invoice showing equipment and installation cost
- The contractor agreement with your city, already on file where the municipal program requires one
I have been doing this for 15+ years. When my crew installs your geothermal system, the rebate paperwork is handled. You do not have to figure it out yourself.
Why Utilities Pay for Geothermal at All
Electric co-ops are member-owned and municipal utilities are city-owned, so they exist to serve their customers rather than shareholders. Geothermal fits what they want: it pulls peak summer cooling load down, because the ground stays cool when the air does not, it adds winter electric load that is efficient rather than wasteful, and it keeps member money in the local system instead of sending it to a propane truck. That is why the money is real, and it is why the requirements are strict. They are buying a specific outcome, not just handing out cash.
Common Questions
How much is the geothermal rebate in Oklahoma in 2026?
It depends entirely on who sends your electric bill. If you are a CKenergy Electric Cooperative member, the geothermal rebate is $2,000 per ton, capped at $24,000 per member. If a city or town utility bills you, you are most likely on the OMPA WISE heat pump program, which pays up to $800.00 per cooling ton per AHRI for a geothermal electric heat pump. That figure is a cap and not a set rate: the OMPA program summary says the city or town may rebate at any level and OMPA matches on a 50/50 percent basis up to the amounts shown, so your town sets the real number. Call me at 405-375-4822 with your utility name and I will tell you which program you are in.
Does OG&E still pay a geothermal rebate in Oklahoma in 2026?
No. OG&E’s Oklahoma residential rebate programs are closed for 2026, verified against OG&E’s own site on August 1, 2026. OG&E says the programs return in 2027. There is nothing to claim from OG&E on a residential system installed this year. If OG&E bills you, ask me to re-check the program the day I write your quote, because utility programs open and close without much notice.
What is the OMPA WISE rebate and how do I know if I am on it?
WISE is the heat pump rebate program run by the Oklahoma Municipal Power Authority for its member cities and towns. For a geothermal electric heat pump it pays up to $800.00 per cooling ton per AHRI, and up to $250 for a dual fuel or replacement system. Both of those are caps, not set rates. OMPA’s own program summary puts it this way: the city or town may rebate at any level, and OMPA will match on a 50/50 percent basis up to the amounts shown. You are on it if a city or town utility department sends your electric bill rather than a cooperative or an investor-owned utility.
What does my geothermal system have to do to qualify for the OMPA WISE rebate?
The system has to hit a minimum EER of 17.1, or EER2 of 16.36. It has to include an operating integrated water heater or desuperheater, which is not optional on this program. It has to be a new installation or a conversion, not a straight swap of an existing geothermal unit at the full rate. There is an in-home energy audit before installation, the work has to be done by a licensed contractor, and the paperwork has to be submitted within 90 days. I hold the one-time contractor agreement with the city, so that part is already handled.
Can I still get the federal geothermal tax credit in 2026?
No. Section 25D, the residential clean energy credit that covered geothermal, is expired. The IRS states plainly that the credit is not available for any property placed in service after December 31, 2025. Paying a deposit in 2025 does not preserve it if the system is placed in service in 2026. Your own return is a question for your CPA.
Which geothermal rebate applies if I live in Kingfisher County Oklahoma?
CKenergy does not serve Kingfisher County, so the CKenergy rebate is not yours. That does not mean you get nothing. If a city utility department bills you, you are on the municipal side and the OMPA WISE program applies at whatever level your town has set. If Cimarron Electric bills you, they publish a flat geothermal rebate, listed in the table on this page. Bring me your electric bill and I will tell you which one you are in.
Do I have to apply for the geothermal rebate myself?
Most Oklahoma rebates require a member or customer application after the installation is complete. I provide the whole documentation package: AHRI certificate, EER documentation, contractor license, IGSHPA accreditation, completion date and equipment invoice. On some programs I can submit on your behalf. On the municipal WISE program the deadline is 90 days from installation, so I do not let that sit.
How do I find out which utility serves my address in Oklahoma?
Look at the top of your electric bill. The utility name and your account number are on the first page, and that name is the single thing that decides your rebate. It is not the county, and it is not your mailing address. If you would rather not dig it out, call me at 405-375-4822 and I can usually tell you from the address.
From the Blog
Water Heater and Desuperheater Maintenance
Your geothermal system makes hot water through its desuperheater, and the municipal rebate program actually requires that piece to be there and working. Most HVAC and plumbing companies have never serviced one. I check the connection between your geothermal heat pump and your water heater so you keep the efficiency the system was designed to deliver, and so the equipment still matches what the rebate paperwork says it is.
- 🌿 Desuperheater pump operation, flow rate and amp draw
- 🌿 Integration check between desuperheater and backup water heater
- 🌿 Full water heater safety inspection, tank or tankless
- 🌿 Annual tank flush or tankless descaling on the 360 plan
Did you know? A properly maintained desuperheater can offset a large share of your annual water heating cost. I verify yours is performing to spec during every inspection.
Nearby Communities I Serve
Geothermal by City
Rebate amounts are not listed here on purpose. Your program follows your utility, not your city limits.
Is Geothermal Right for Your Home?
Answer 7 quick questions and get a personalized answer based on your property, utility company, and Oklahoma rebates. Free, no email required.
Find Out If Geothermal Makes Sense for YouPowered by Google Gemini. Opens in a new tab.
Get a Geothermal Estimate, I Will Handle the Rebate Paperwork
I am IGSHPA-Accredited with 47 years of HVAC experience, 4.8 stars and 300+ Google reviews. I will assess your property, design the right loop configuration, confirm which rebate program you are actually in, and help you capture every dollar you qualify for. Free estimate on a new system.
Call 405-375-4822 Request a Free Estimate2026 Oklahoma Rebate Program Index
Quick reference for the program names, requirements and paperwork behind everything above.
Programs I Can Stand Behind Today
CKenergy Electric Cooperative residential geothermal rebate, per ton with a per-member cap. OMPA WISE Heat Pump Rebate Program for municipal utilities, geothermal electric heat pump line, capped and matched 50/50 with the participating city or town. Cimarron Electric Cooperative geothermal rebate, a flat published amount rather than a per-ton amount.
Programs I Confirm Before Quoting
OEC Oklahoma Electric Cooperative, most recent published rebate sheet is a 2025 document so the 2026 amount and status are unconfirmed. KPWA Kingfisher Public Works Authority, municipal utility covered by the OMPA WISE program, participation level set locally. Canadian Valley Electric Cooperative, rebates offered, amount unconfirmed. CREC Central Rural Electric Cooperative and NWEC Northwestern Electric Cooperative, published per-ton figures re-confirmed with the co-op before they go on an estimate.
Closed or Expired
OG&E Oklahoma residential rebate programs, closed for 2026, OG&E says they return in 2027. Section 25D Residential Clean Energy Credit, expired for property placed in service after December 31, 2025. Section 25C Energy Efficient Home Improvement Credit, expired on the same date.
Application Document Checklist
AHRI performance certificate with certified ratings, ENERGY STAR labeling, IGSHPA Accredited Installer credential, itemized invoice showing labor and materials, equipment serial and model numbers off the nameplate, photo documentation of the loop installation, driller depth log, loop pressure test report, antifreeze tag, pre-installation energy audit where the program requires one, and the contractor agreement with the participating city.
Eligibility Categories
Residential single-family owner-occupied, residential rental, small business and agricultural, manufactured home on a permanent foundation, multi-family and condominium with association approval, new construction with certificate of occupancy, and retrofit or replacement with proof of disposal of the old equipment. Program rules differ by utility, and a category that qualifies on one program can be excluded on another.
Service Area
Daily HVAC service runs Kingfisher, Canadian, Oklahoma, Garfield, Major, Logan and Blaine counties. Geothermal is different: I take geothermal work anywhere in Oklahoma, and I have driven to Lawton, Broken Bow and Durant for it. One shop, in Kingfisher, and I drive from it.
Performance Terms You Will See on the Paperwork
EER and EER2 cooling efficiency ratings, COP heating coefficient of performance, cooling tons as certified by AHRI, closed-loop and open-loop ground heat exchanger configurations, desuperheater and integrated water heater domestic hot water options, and the AHRI standards that ground-source and water-source equipment is rated under. The specific rating that governs your rebate is the one printed on the AHRI certificate for the exact model installed, which is why I pull that document before I put a rebate figure on an estimate.
Related geothermal guides
For Garfield and Major County co-op territory, see the Alfalfa Electric Co-op geothermal rebate.
For OMPA WISE geothermal amounts, review up to $800 per ton geothermal rebate in Oklahoma.
For federal tax-credit timing, see federal geothermal tax credit expiration.