If you’re a CKenergy Electric Cooperative member in central Oklahoma, 2026 may be the best time in years to install geothermal — and it has nothing to do with federal tax credits. CKenergy now offers $2,000 per ton of geothermal capacity, up to $24,000 per installation. For a typical 3-ton home, that’s $6,000 back. For a 4-ton system, $8,000.
Hartzell’s — IGSHPA Accredited Geothermal Installer serving CKenergy territory
CKenergy Geothermal Rebate · Hartzell’s Handles the Paperwork · 405-375-4822
The Numbers
| Rebate amount | $2,000 per ton of capacity |
| Maximum rebate | $24,000 |
| 2-ton system example | $4,000 rebate |
| 3-ton system example | $6,000 rebate |
| 4-ton system example | $8,000 rebate |
| Effective date | January 1, 2026 (confirm with CKenergy) |
Note: Rebate amounts and availability should be verified directly with CKenergy Electric Cooperative at 405-656-2322 or ckenergy.coop before installation, as programs can change. Hartzell’s will confirm current rebate status for your address before the job starts.
Why This Matters Now — The Federal Credit Is Gone
The federal IRS Section 25D geothermal tax credit expired December 31, 2025. New geothermal installations in 2026 do not qualify.
Here’s the interesting thing: for CKenergy members in the Kingfisher area, the co-op rebate now exceeds what most homeowners were getting from the federal credit. The 30% federal credit on a $20,000 geothermal job was $6,000. The CKenergy rebate on a 3-ton system is also $6,000 — and it comes as a bill credit rather than a tax credit (meaning you get the benefit regardless of your tax situation).
Who Qualifies
- You must be a CKenergy Electric Cooperative member (not OG&E, not PSO)
- CKenergy serves 10 counties in western/central Oklahoma — Kingfisher, Blaine, Caddo, Grady, Comanche, Kiowa, Washita, Custer, Dewey, and Roger Mills counties
- The geothermal system must be installed by a qualified contractor (Hartzell’s is a licensed geothermal installer)
- System must be sized correctly by AHRI-rated equipment
- Documentation required: AHRI certificate, contractor license, IGSHPA installer credentials, and completed rebate application
What Hartzell’s Does to Process Your Rebate
Rebate paperwork is one of the most common places this process breaks down. Homeowners who hire unqualified installers or contractors without the required credentials often lose the rebate entirely. Here’s what we provide:
- AHRI performance certificate — documents the system’s rated efficiency and capacity
- Oklahoma contractor license number — CKenergy requires a licensed contractor
- IGSHPA Accredited Installer certification — Dave Hartzell is IGSHPA accredited, one of very few in Oklahoma
- Completed rebate application — we fill this out and submit with you
- Installation documentation — loop design records, system commissioning data
Real Cost Example: 3-Ton Geothermal in Kingfisher
Typical 3-ton horizontal loop geothermal installation (central Oklahoma):
| Installed cost (equipment + loop + labor) | $18,000 – $24,000 |
| CKenergy rebate (3 ton × $2,000) | − $6,000 |
| Financing available (if needed) | Synchrony, Wells Fargo, Wisetack |
| Net cost after rebate | $12,000 – $18,000 |
Annual energy savings of $800–$1,800/year are common for Oklahoma homes switching from a gas+AC combo. Payback periods of 8–15 years are typical at current CKenergy rates.
How to Get Started
The geothermal installation process starts with a free in-home assessment. Dave or a senior tech will:
- Confirm your property is on CKenergy service
- Walk your lot to assess loop field options (horizontal, vertical, or pond)
- Calculate the correct system size using a Manual J load calculation
- Quote the complete installed cost and expected rebate amount
- Walk you through financing options if needed
See our full Oklahoma geothermal rebates guide ›
Written by Dave Hartzell, IGSHPA Accredited Geothermal Installer, Hartzell’s Heat & Air, Kingfisher Oklahoma.
Need a Geothermal Estimate in Central Oklahoma?
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Need service? See our Oklahoma Geothermal Rebates page for pricing, service area, and same-day availability across central Oklahoma. Call 405-375-4822.
Also Serving
Kingfisher
Enid
Yukon
Mustang
Edmond
Guthrie
El Reno
Weatherford
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Call 405-375-4822 or book online. Same-day appointments often available. Free estimates on new systems.
Related Services from Hartzell’s Heat & Air
- CKenergy Geothermal Rebate — full rebate details and eligibility requirements
- Geothermal Heat Pumps — everything you need to know before installing a geo system
- Oklahoma Geothermal Rebates 2026 — all utility rebate programs across central Oklahoma
Content reviewed by Dave Hartzell — Oklahoma Master HVAC License #00115936, IGSHPA Accredited Geothermal Installer, Mitsubishi Diamond Dealer, Trane Comfort Specialist TCS SELECT. Hartzell’s Heat & Air, Kingfisher OK, for 15+ years.