The 2026 rebate picture (setting expectations honestly)
Before we dig into the OG&E program specifically, a clear-eyed read of the full HVAC-incentive landscape for a Stillwater homeowner installing new equipment in 2026:
- Federal 25C credit — the Energy Efficient Home Improvement Credit that gave homeowners up to $2,000 back on qualifying heat-pump installations. EXPIRED as of December 31, 2025 under the One Big Beautiful Bill Act. Not available for any 2026 install. Any contractor still quoting the 25C credit is wrong or misleading.
- Federal 25D credit — the Residential Clean Energy Credit that covered solar, geothermal, and some other clean-energy installations. Same story: EXPIRED 12/31/2025. Not available in 2026.
- OG&E residential HVAC rebate — ACTIVE per OG&E's published 2026 Energy Efficiency Program page. This is the primary Oklahoma-specific HVAC incentive lever in 2026. Details below.
- ONG (Oklahoma Natural Gas) rebate — Active for qualifying high-efficiency gas furnace installations and (in some program years) electric-to-gas conversion projects. Program details and qualifying equipment shift year to year. Sitton confirms current status on any gas-furnace install.
- Daikin manufacturer promotions — Sometimes available on inverter heat-pump systems through Authorized Dealers. Time-limited; we tell you what's running when we quote.
The net effect: OG&E's residential rebate is the primary rebate lever in the 2026 Stillwater market, and it makes a material difference on the price you actually pay for qualifying high-efficiency equipment. Here's the full walkthrough.
What the OG&E program is
OG&E (Oklahoma Gas & Electric) runs an Energy Efficiency Program for Oklahoma residential customers as part of the utility's demand-side management program approved by the Oklahoma Corporation Commission. The program includes several tracks — residential HVAC replacement is one of them, and it's the track most homeowners encounter when they're pricing a new central AC, heat pump, or (in some program years) mini-split system.
Key features of the program:
- Eligibility — residential OG&E electric-service customers in Oklahoma.
- Qualifying equipment — central AC, heat pumps, and other HVAC categories above specific efficiency thresholds. Exact qualifying-equipment list is published on OG&E's Energy Efficiency Program page and refreshed periodically. [GATHER: AM-verify current 2026 qualifying equipment list.]
- Rebate structure — tiered by efficiency (higher SEER2 / HSPF2 rating = higher rebate dollar amount).
- Per-project cap — [GATHER: AM-verify OG&E per-project rebate cap for 2026 before publishing a specific dollar figure].
- Funding — first-come, first-served against annual program funds. Once program funds are exhausted for the year, additional applications may be waitlisted or deferred to the next program year.
- Submission — application submitted post-install with AHRI equipment certificate and install-completion documentation.
Why the rebate matters for the total math
The OG&E rebate meaningfully shifts the payback math on the "which efficiency tier should I buy" decision. Consider the practical picture:
- A federal-minimum 14.3 SEER2 system typically doesn't qualify for the top OG&E rebate tier — some program years exclude minimum-efficiency equipment entirely.
- A 17-19 SEER2 system typically qualifies at a middle tier.
- A 20+ SEER2 premium inverter system typically qualifies at the top tier.
The dollar difference between the middle and top tiers is often enough to close a meaningful portion of the equipment-cost premium between the two tiers — meaning the rebate can make the higher-efficiency system's payback math work out several years faster than it would without the rebate. That's why we do the tier-vs-tier comparison with the rebate included as part of every Sitton quote.
What Sitton does to make the rebate actually happen
Before the install: qualification check
- Confirm you're an OG&E residential customer. We check your electric-service provider (some rural areas within our service map are on co-op service, not OG&E — different rebate landscape).
- Match your proposed equipment to OG&E's current qualifying list. We use the AHRI-certified rated numbers, not marketing "up to" numbers.
- Confirm current-year program status and per-project cap directly with OG&E before we quote you a specific rebate dollar figure. Program funds can be reserved throughout the year; we confirm program is still open before we commit a figure.
- Include the rebate in the written quote. You see the equipment cost, install cost, applicable rebate (documented as OG&E's current program figure), and net-after-rebate number in writing.
At install: documentation
- Capture the equipment model numbers, serial numbers, and AHRI certificate numbers for both the outdoor and indoor units.
- Document install completion with commissioning data (refrigerant charge, superheat/subcooling, static pressure) — required documentation on most rebate submissions.
- Get your signature on the rebate authorization form that lets Sitton submit paperwork on your behalf.
After the install: submission and follow-up
- Submit the rebate application to OG&E within their required post-install window (typically 60-90 days).
- Attach all supporting documentation (AHRI certificate, invoice, install photos where required).
- Track the application status in the Sitton office. Typical processing is 6-10 weeks from complete submission to rebate check.
- Follow up with OG&E if the check hasn't arrived at the 12-week mark. We don't consider the install fully closed until the rebate has landed.
"The OG&E rebate is real money. It shifts the buying math meaningfully — a customer weighing 17 SEER2 vs 20 SEER2 who sees the actual OG&E rebate dollars on the higher-tier option often does the math and picks the better equipment because the payback works. Contractors who don't handle the rebate paperwork lose that leverage. We handle it end-to-end because it makes the customer's decision easier and the equipment they end up with better." — Bryan Sitton, Owner, Sitton Mechanical (EPA 608 Certified, Authorized Daikin Dealer)
Common questions we hear about the OG&E rebate
"Can I stack the OG&E rebate with the federal tax credit?"
Not in 2026. The federal 25C credit that used to layer on top of state and utility incentives expired 12/31/2025. In prior years, homeowners could stack the federal credit with the OG&E rebate for meaningful combined savings; that's no longer available. The OG&E rebate is now the primary Oklahoma incentive on residential HVAC.
"What if OG&E's program funds run out before I install?"
OG&E's program is annual and typically well-funded, but funds can be reserved earlier in the year on high-demand equipment tiers. If funds are close to exhausted when we submit your application, OG&E may waitlist your submission for the following program year. Sitton tracks program-fund status in our office and gives you an honest read of the likelihood at quote time.
"Does the OG&E rebate apply to commercial HVAC?"
OG&E runs a separate Commercial Energy Efficiency Program with different rebate structures for commercial equipment. If you're a Sitton commercial customer (restaurant, c-store, small business) pricing HVAC or refrigeration replacement, we walk through the commercial program separately — different eligibility rules, different equipment tiers, different documentation. Call (405) 780-3034 to talk through your commercial project.
"Can I file the rebate application myself?"
Yes, but most customers prefer Sitton handles it because we already have the equipment documentation from the install and know the submission requirements. If you'd prefer to submit yourself, we hand you the complete documentation package to attach and provide instructions for OG&E's application process.
The ONG rebate on the gas side
If your install includes a new high-efficiency gas furnace (either standalone or as part of a dual-fuel system), ONG rebates may also apply. Program details and qualifying equipment shift year to year. Sitton confirms current ONG program status alongside OG&E when we quote installs that involve gas equipment. [GATHER: AM-verify current ONG rebate figures and qualifying equipment list before quoting.]
How to make sure your rebate quote is real
If a contractor other than Sitton is quoting you an OG&E rebate amount, ask two questions:
- "What's the specific OG&E program page or documentation you're pulling that dollar figure from?" They should be able to point you to the current published program materials. If the answer is vague, the number is guessed.
- "Who submits the rebate paperwork — you or me?" If it's you, they've offloaded the actual work of getting the rebate to you. If it's them, ask how they track and follow up on the submission.
Your next step
If you're planning an HVAC install in Stillwater, Perkins, or the surrounding cities and want the OG&E rebate handled end-to-end, call (405) 780-3034. We'll do the site visit, run the Manual J, size the equipment right, confirm current OG&E program terms directly with the utility, quote the install with the applicable rebate figure clearly separated, and handle the rebate paperwork from submission through check arrival. Same-day appointments available. Related reading: SEER2 vs SEER — which tier makes financial sense, the 2026 heat pump vs. furnace framework, and how often to tune up your HVAC in Oklahoma for the maintenance discipline that protects the investment.