South Dakota Heat Pump Rebates & Incentives (2026)
South Dakota is the only state in America that opted out of federal IRA heat pump rebate funding, and federal tax credits expired at the end of 2025. The only incentives left come from individual electric utilities, with rebates ranging from $0 to over $4,000 depending on your provider. This guide covers all major South Dakota heat pump incentives available in 2026, including Otter Tail Power, Heartland Energy, Sioux Valley Energy, Black Hills Energy, and cooperative programs. Here's what's actually available.
Last verified: March 24, 2026
Rates and program availability may change after this date.
South Dakota
Limited / Region-Dependent
South Dakota has no statewide heat pump program and is the only state to opt out of IRA HEAR/HOMES rebates ($68.56M declined). Federal credits expired. Utility rebates range from $0 (NorthWestern Energy) to over $4,000 (Otter Tail Power) depending on provider.
Sources:
The short version
✓ Otter Tail Power: up to $4,160
The most generous program in the state. Per-ton rebates for cold-climate ducted heat pumps with quality install and energy control bonuses. Serves parts of northeastern South Dakota.
✓ Heartland Energy / Sioux Falls: up to $2,400
Ducted ASHP with electric backup rebate of $2,000 plus $400 for a heat pump water heater. Covers Sioux Falls Light & Power and 19 other municipal utilities.
✓ Co-op programs with heat rates as low as 6.77¢/kWh
$0 (NorthWestern Energy) to $4,160+ (Otter Tail Power). Co-ops like Sioux Valley and Southeastern offer special winter electric rates and low-interest loans that can be more valuable than the rebate itself over a system's lifetime.
✗ Federal credits expired + SD opted out of IRA rebates
Section 25C and 25D tax credits ended December 31, 2025. South Dakota is the only state to reject the IRA's $68.56 million HEAR/HOMES allocation. No statewide program exists.
⚠ Your electric utility determines everything
With no federal or state incentives, your utility provider is the single most important variable. Rebates range from $0 to over $4,000. Before getting quotes, identify your electric utility and contact them directly for current rebate details — programs can change mid-year when budgets deplete.
Federal tax credits have ended
Section 25C (Energy Efficient Home Improvement Credit) and Section 25D (Residential Clean Energy Credit) both expired on December 31, 2025. The One Big Beautiful Bill Act accelerated their termination. Section 25C provided up to $2,000 per year for qualifying heat pumps. Section 25D covered 30% of cost with no cap for geothermal systems. Neither credit is available for systems installed in 2026. Full federal credit expiration details →
Equipment purchased in 2025 but installed in 2026 does not qualify — the IRS uses "placed in service" language requiring full installation by the deadline. One narrow exception: Section 25D allows carryforward of unused credit from a qualifying geothermal system installed before January 1, 2026.
No legislation has been introduced to restore either credit as of March 2026.
South Dakota opted out of IRA rebate programs
South Dakota is the only state in the nation to have declined the Inflation Reduction Act's Home Electrification and Appliance Rebates (HEAR) and Home Efficiency Rebates (HOMES) programs. The state was allocated $68.56 million for these programs. In August 2024, the Bureau of Finance and Management formally declined participation, missing the federal deadline to accept.
Officials cited limited staff capacity — the State Energy Management Office has one full-time employee — and policy disagreement with the Inflation Reduction Act. The $68.56 million is being redistributed to participating states.
What South Dakota homeowners missed
Had South Dakota participated, low-income households (below 80% of Area Median Income) could have received up to $8,000 for heat pump HVAC and $1,750 for heat pump water heaters. Moderate-income households (80–150% AMI) would have received 50% of costs up to those caps. These programs are now active in 49 other states and the District of Columbia.
⚠ Common mistake: assuming state programs exist
Many online rebate calculators and national guides still list HEAR/HOMES rebates as available everywhere. In South Dakota, these programs do not exist. Do not rely on generic rebate estimates that include federal or IRA figures — your actual incentives come solely from your electric utility.
Other state-level programs
South Dakota has no state income tax, which makes a state energy tax credit structurally impossible. There are no state-administered loan programs for residential energy improvements. However, two narrow benefits exist.
Geothermal property tax exemption
Under SDCL 10-4-44, geothermal heat pump systems qualify for a property tax exemption on the first $50,000 or 70% of assessed value (whichever is greater) for the first four continuous years after installation. This applies only to geothermal — not air-source — heat pumps. Contact your county Director of Equalization to claim it.
USDA Rural Energy for America Program (REAP)
Available to agricultural producers and rural small businesses (not individual homeowners). REAP provides grants covering up to 50% of project costs and loan guarantees up to 75%. South Dakota's large rural and agricultural population means some farm operations may qualify for heat pump installations through this program.
Utility rebates by provider
With no federal or state incentives, utility programs carry nearly all the financial weight. Rebates vary dramatically by provider — from nothing to over $4,000.
Otter Tail Power Company
Serves parts of northeastern South Dakota. Operates the most generous and technically detailed heat pump incentive program in the state, with per-ton rebates that scale with system size and stack with bonus adders.
| Equipment | Base rebate | With bonuses |
|---|---|---|
| Standard ASHP (≥14.3 SEER2, ≥7.5 HSPF2) | $300/ton | Up to $540/ton |
| High-efficiency ASHP (≥16.0 SEER2, ≥8.0 HSPF2) | $600/ton | Up to $840/ton |
| Cold-climate ducted HP (≥16.0 SEER2, ≥8.0 HSPF2) | $800/ton | Up to $1,040/ton |
| Closed-loop geothermal | $1,200/ton | Up to $1,640/ton |
| Open-loop geothermal | $900/ton | Up to $1,340/ton |
| Heat pump water heater | $200 | — |
A typical 4-ton cold-climate ducted heat pump could qualify for up to ~$4,160 in combined base and bonus rebates. Rebates cannot exceed 75% of project cost (50% for geothermal). Applications accepted through March 31 of the following calendar year.
Heartland Energy municipal utilities
Heartland Energy coordinates the "Power Forward" rebate program for Sioux Falls Light & Power and 19 other municipal utilities including Madison, Groton, Volga, and Miller.
| Equipment | Rebate | Requirements |
|---|---|---|
| Ducted ASHP with electric backup | $2,000 | ≥2 tons; backup must be electric |
| Ducted ASHP (any backup) | $1,000 | ≥2 tons |
| Geothermal heat pump | $2,000 | Electric backup required |
| Non-ducted mini-split | $500 | ≥1 ton |
| Heat pump water heater | $400 | ENERGY STAR certified |
Sioux Valley Energy
Eastern South Dakota cooperative offering rebates, favorable electric rates, and a lending program.
| Equipment | Rebate |
|---|---|
| ASHP with electric backup (≥2 tons) | $1,200 |
| ASHP with non-electric backup (≥2 tons) | $600 |
| Geothermal heat pump (≥2 tons) | $1,200 |
| Ductless ASHP (≥2 tons) | $300 |
Members also receive a special electric heat rate of 7.45¢/kWh (versus 12.81¢/kWh standard) from October through April with a sub-meter. The cooperative offers heat pump loans up to $15,000 at 5% interest over 7 years. One rebate per account every 10 years.
Southeastern Electric Cooperative
Offers $600 for air-source heat pumps, $800 for geothermal, and $300 for ductless mini-splits (all ≥2 tons). A special electric heat rate of 6.77¢/kWh is available October through April. Loans up to $10,000 at 5% interest over 7 years.
Other utilities
| Utility | ASHP rebate | Notes |
|---|---|---|
| Black Hills Energy | Varies | Rapid City area. 2026 program reopened after 2025 funding depletion. Contact for current amounts. |
| Central Electric Co-op | $600 | Mitchell area. ENERGY STAR required. |
| Lyon-Lincoln Electric | Up to $800 | $400 base + $400 ENERGY STAR bonus. |
| MRES / Bright Energy Solutions | $150–$450 | Watertown, Brookings, Vermillion, Pierre, Fort Pierre. Includes $100 contractor bonus. |
| NorthWestern Energy | — | No active SD residential heat pump rebates. Programs are Montana-focused. |
| Montana-Dakota Utilities | — | Gas utility only. No heat pump rebates. |
How programs stack
Stacking options are extremely limited in South Dakota. With no federal tax credits, no state programs, and no HEAR/HOMES rebates, the incentive stack consists almost entirely of the single utility rebate available at your address. No South Dakota utility offers income-qualified adders — the same rebate amount applies regardless of household income.
Above 150% AMI — best utility territory (Otter Tail Power, 4-ton cold-climate ducted HP)
- Federal tax credits: $0 (expired)
- State programs: $0 (opted out / none exist)
- Otter Tail base rebate: $3,200 ($800/ton × 4 tons)
- Quality install + energy control bonuses: ~$960
Realistic maximum: ~$4,160
80–150% AMI — Heartland Energy / Sioux Falls (ducted ASHP + HPWH)
- Federal tax credits: $0 (expired)
- State programs: $0 (opted out / none exist)
- Heartland ASHP with electric backup: $2,000
- Heartland HPWH rebate: $400
Realistic maximum: ~$2,400
Below 80% AMI — Weatherization Assistance Program
- WAP may cover full heating system replacement at no cost
- Income threshold: ~$31,300/year (single) or ~$64,300/year (family of 4)
- Priority: elderly, disabled, families with children
- Contact: 800-233-8503
Potential out-of-pocket: $0
What you'll actually pay
For a typical $12,000–$18,000 ducted cold-climate heat pump installation, expect to pay $8,000 to $18,000 out of pocket depending on your utility territory. In the best case (Otter Tail Power), rebates cover roughly 25–35% of system cost. In NorthWestern Energy or MDU territory, expect to pay full price with no utility assistance.
South Dakota has no state tax credits, no state loan programs, no HEAR rebates, and no HOMES rebates. Income does not affect utility rebate amounts — no provider offers income-qualified adders.
Weatherization Assistance Program
The federal Weatherization Assistance Program (WAP) is administered in South Dakota by the Department of Social Services. Services are free for income-eligible households at or below 200% of the Federal Poverty Level — approximately $31,300 annually for a single person and $64,300 for a family of four.
WAP can cover heating system replacement when the existing system is non-functional, and federal rules permit heat pump installation when cost-effective. However, the program typically replaces like-with-like. Priority goes to elderly, disabled, and families with children.
Four community action agencies deliver services across the state:
| Agency | Coverage area |
|---|---|
| Inter-Lakes Community Action | East-central South Dakota |
| GROW South Dakota | Northeast South Dakota |
| Rural Office of Community Services | South-central and southeast South Dakota |
| Western SD Community Action | Western South Dakota |
Contact: 800-233-8503 or DSSHeat@state.sd.us
Climate context: cold-climate equipment is essential
South Dakota's winters are among the harshest in the lower 48 for heat pump operation. The state spans IECC Climate Zones 5A (southern border counties) and 6A (the vast majority, including all major cities). Standard heat pumps are not appropriate here — cold-climate rated equipment is essential.
| City | ASHRAE 99% design temp | Climate zone |
|---|---|---|
| Sioux Falls | -11°F | 6A |
| Rapid City | -7°F | 6A |
| Pierre | ~-11°F | 6A |
| Aberdeen | ~-16°F | 6A |
Modern cold-climate air-source heat pumps can operate down to -22°F and below, achieving COPs of 1.5–2.0 even at -15°F — still 50–100% more efficient than electric resistance heating. However, supplemental backup heat is essential. Dual-fuel configurations (heat pump plus gas, propane, or electric resistance backup) are the recommended approach.
✓ Best candidates for heat pumps in South Dakota
Homeowners heating with propane (at ~$2.00/gallon, heat pumps offer clear savings), households in Otter Tail Power or Heartland Energy territory (strongest rebates), cooperative members with access to special winter heat rates (6.77–7.45¢/kWh), and anyone replacing a failing system who can take advantage of available rebates during the transition.
Approximately 58% of South Dakota households heat with natural gas, 25% with electricity, and 14% with propane. Against natural gas at approximately $10–$12/MMBtu, heat pump savings are marginal without favorable electric rates. Against propane at ~$21.50/MMBtu (after combustion efficiency), a heat pump at 13¢/kWh and COP 2.5 delivers roughly $15.20/MMBtu equivalent — a meaningful reduction.
Pairing a heat pump with a home battery system may make sense for homeowners with solar panels or those on time-of-use electric rates, though South Dakota's flat-rate utility structures currently limit the battery value proposition for most households.
How to apply
Because there is no statewide program, the application process depends entirely on your electric utility.
Identify your electric utility
Check your electric bill for your provider name. This determines which rebates (if any) are available to you. If you're unsure, contact the South Dakota Public Utilities Commission at 605-773-3201.
Contact your utility before purchasing equipment
Confirm current rebate amounts, equipment requirements (SEER2, HSPF2, refrigerant), and application deadlines. Programs can change mid-year when annual budgets deplete — Black Hills Energy closed its 2025 program early for this reason.
Get quotes specifying cold-climate equipment
Request quotes from licensed HVAC contractors for cold-climate rated heat pumps (NEEP-listed preferred). Ensure the equipment meets your utility's specific efficiency requirements for the highest rebate tier.
Submit your rebate application after installation
Most utilities accept applications after installation with proof of purchase and contractor invoice. Otter Tail Power accepts applications through March 31 of the following year. Municipal utilities (Heartland) accept through Sioux Falls Sustainability at Sustainability@SiouxFalls.org or your local municipal office.
What to watch
IRA funding runway
The One Big Beautiful Bill Act accelerated termination of federal clean energy tax credits. No legislation has been introduced to restore Section 25C or 25D. South Dakota's HEAR/HOMES opt-out means even if IRA programs continue in other states, South Dakota homeowners will not benefit without a reversal of the state's decision.
Black Hills / NorthWestern Energy merger
The pending merger between Black Hills Corporation and NorthWestern Energy could reshape the utility incentive landscape in South Dakota. If completed, the combined entity's approach to residential rebates will affect hundreds of thousands of customers. Monitor proceedings at the South Dakota Public Utilities Commission (puc.sd.gov).
Utility budget depletion
Black Hills Energy exhausted its 2025 rebate budget mid-year and closed applications early. Other utilities could face the same constraint. Apply early in the calendar year when budgets are fresh.
Frequently asked questions
What heat pump rebates are available in South Dakota in 2026?
South Dakota has no statewide heat pump rebate program and opted out of federal IRA rebate funding (HEAR and HOMES). Federal Section 25C and 25D tax credits expired December 31, 2025. The only financial incentives come from individual electric utilities, with rebates ranging from $0 (NorthWestern Energy) to over $4,000 (Otter Tail Power Company) depending on your provider. Geothermal systems qualify for a 4-year property tax exemption.
Can I stack utility rebates with other programs in South Dakota?
Stacking options are extremely limited in South Dakota. With no federal tax credits, no state programs, and no HEAR/HOMES rebates, your incentive stack consists almost entirely of whatever single utility rebate is available at your address. The only stackable benefit is the geothermal property tax exemption, which applies solely to geothermal heat pump systems. Each home has one electric provider, so utility rebates from different companies cannot be combined.
Why did South Dakota opt out of IRA energy rebates?
South Dakota is the only state in the nation to have opted out of the Inflation Reduction Act's Home Electrification and Appliance Rebates (HEAR) and Home Efficiency Rebates (HOMES) programs. The state's Bureau of Finance and Management declined the $68.56 million allocation in August 2024, citing limited staff capacity at the State Energy Management Office and policy disagreement with the IRA. That funding is being redistributed to participating states.
Which South Dakota utilities offer heat pump rebates?
Several South Dakota utilities offer heat pump rebates: Otter Tail Power Company (up to $4,160 for cold-climate systems), Heartland Energy municipal utilities including Sioux Falls ($1,000–$2,000), Sioux Valley Energy ($600–$1,200), Southeastern Electric Cooperative ($300–$800), Black Hills Energy (amounts vary), and MRES/Bright Energy Solutions municipal utilities ($150–$450). NorthWestern Energy and Montana-Dakota Utilities currently offer no residential heat pump rebates in South Dakota.
Do cold-climate heat pumps work in South Dakota winters?
Yes, but equipment selection is critical. South Dakota's ASHRAE design temperatures range from -7°F in Rapid City to -16°F in Aberdeen. Modern cold-climate air-source heat pumps can operate down to -22°F and below, achieving COPs of 1.5–2.0 even at -15°F — still 50–100% more efficient than electric resistance heating. However, supplemental backup heat is essential. Dual-fuel configurations (heat pump plus gas, propane, or electric resistance backup) are the recommended approach for South Dakota.
Sources
- SD Bureau of Administration — Energy Management
- SD Public Utilities Commission — Energy Efficiency
- Otter Tail Power — Heat Pump Rebates
- Heartland Energy — Heating & Cooling Rebates
- Sioux Falls — Heat Pump Rebate Program
- Sioux Valley Energy — Programs & Rebates
- Southeastern Electric Cooperative — Heat Pumps
- Black Hills Energy — SD Electric Residential Rebates
- MRES Bright Energy Solutions
- SD Dept. of Social Services — Weatherization
Disclaimer: This page covers the main utility and IRA-related heat pump incentives available to South Dakota homeowners in 2026. It does not calculate savings, guarantee eligibility, or represent any incentive program. South Dakota has no statewide heat pump program — all rebates are administered by individual utilities and may change without notice. We verify status regularly but programs can change without notice. Always confirm current amounts and eligibility with your electric utility and your contractor before making decisions.
See how this state compares → Heat Pump Rebates by State (2026)