Energy efficiency rebates in Maine.
Every federal, state, and utility incentive for heat pumps, insulation, air sealing, and weatherization in Maine — cross-referenced and kept current.
Tell us about your project. We'll match you with local pros and every rebate you qualify for.
Efficiency Maine Trust
- Type
- Quasi State
- Website
- www.efficiencymaine.com
- Phone
- (866) 376-2463
- IRA allocation
- $72M
Active rebate programs
8 programs currently accepting applications in Maine.
| Program | Amount | Eligibility | Status |
|---|---|---|---|
| Heat Pumps (Any Income) | $1,000/unit (max $3,000) | All homeowners | Active |
| Heat Pumps (Moderate Income) | $2,000/unit (max $6,000) | AGI up to $70K single / $100K joint | Active |
| Heat Pumps (Low Income) | $3,000/unit (max $9,000) | MaineCare, HEAP, SNAP, or TANF | Active |
| Whole-Home Heat Pump Bonus | $500 bonus | Whole-home upgrade, March-Dec 2026 | Active |
| Insulation & Air Sealing (Any Income) | 40% of cost up to $4,000 | All homeowners, lifetime limit | Active |
| Insulation & Air Sealing (Moderate) | 60% of cost up to $6,000 | Income-qualified | Active |
| Insulation & Air Sealing (Low Income) | 80% of cost up to $8,000 | Income-qualified | Active |
| Green Bank Home Energy Loans | 0% APR 1-yr / 5.99% 5-yr / 7.99% 10-yr | Up to $25,000, no lien required | Active |
Run the numbers for Maine.
Free, no account needed. Every figure is cited, so you have a benchmark before a Maine contractor quotes you one.
IRA implementation status
How Maine is implementing the Inflation Reduction Act home energy rebates.
Metro areas in Maine
Local utility programs and municipal incentives by metro area.
Central Maine Power. No separate municipal incentives — all through Efficiency Maine.
Versant Power Eco Rates for heat pumps. CDBG weatherization.
Auburn has ARPA-funded match for Efficiency Maine rebates.
Rebates are step one
Once you know what Maine pays, here's the rest of the path: what order to do the work in, and what belongs on a fair quote.
What order to do it in
Envelope first, equipment second — how to sequence a retrofit to your budget and your rebates' deadlines.
How to read a quote
What belongs on a heat pump or insulation quote, and the red flags that mean keep shopping.
What attic insulation costs
Per-square-foot prices by material, and why this is the work rebate programs subsidize hardest.
Claim rebates after install
The document kit, the application walkthrough, and the mistakes that get claims rejected.
Latest Maine energy news
National rebate and efficiency coverage — Maine-specific news appears here the moment our sources report it.
Trump signs Section 232 tariffs, placing minimum import price on polysilicon imports
The government has set new tariffs and price floors on imported solar materials, aimed at building up U.S. solar manufacturing. Starting December 4, 2026, a 15% tariff will apply to polysilicon (the raw material used to make solar panels) and related products, along with minimum prices for polysilicon, ingots, wafers, cells, and finished solar modules. The move follows a national security review that found the U.S. relies too heavily on imported solar components, especially wafers and cells. For homeowners thinking about solar panels, this points toward higher prices ahead. Industry estimates suggest module costs could rise by roughly $0.10 to $0.14 per watt depending on how much of the panel is made domestically versus imported, with the price of a fully imported module potentially jumping from about $0.24 to $0.38 per watt. Those increases would flow through to the cost of a home solar installation, though the changes don't take effect until December 2026, giving some lead time before pricing shifts. Solar manufacturers with U.S. factories, including First Solar, Hanwha Q Cells, and T1 Energy, welcomed the move, saying it protects investments and jobs in domestic production. Some industry voices expect the policy to push more investment into U.S.-made wafers, a part of the supply chain that's been especially reliant on imports. For now, the practical takeaway for anyone considering solar is that equipment costs may climb in the next year or so as this policy takes hold, even though the details of how it plays out for specific installers and regions are still unfolding.
$20B in federal climate grants unblocked by appeals court
A federal appeals court has blocked the Trump administration from clawing back $20 billion in climate grants that Congress set up through the Inflation Reduction Act. The money, known as the Greenhouse Gas Reduction Fund, was meant to help pay for clean energy projects, affordable housing upgrades, electric vehicle manufacturing, and lower energy bills across the country. The EPA had tried to cancel the grants and take back nearly $7 billion already paid out to the nonprofit Climate United, but the U.S. Court of Appeals for the D.C. Circuit ruled the agency likely broke the law by ending the program "based solely on a policy disagreement." For homeowners, this fund is one of the sources behind various clean energy and efficiency financing programs run through local nonprofits and green banks in different states. Congress separately repealed unspent EPA funds from this program last year, so some money is still tied up, and four of the ten judges said part of the court's earlier order blocking the EPA no longer applies to that unspent portion. The EPA says it is reviewing the ruling and deciding what to do next. Nothing here changes rebates or programs you may already be using, like weatherization assistance or heat pump incentives, but it does affect whether billions in grant money keeps flowing to groups that fund clean energy and efficiency projects nationwide. If you have applied for financing tied to a state green bank or nonprofit lender, it may be worth checking whether this fund is behind it.
Trump weaponizes FCC to ban new foreign-made connected solar inverters
The Federal Communications Commission has added foreign-made "connected" power inverters to its restricted import list, starting July 28. This affects inverters that convert power between DC and AC and also have a radio for remote monitoring or control over Wi-Fi, cellular, or Bluetooth — the kind used in most modern solar and battery systems. New models that don't meet a US-content threshold can no longer be imported or sold. Despite the "foreign-made" label, this isn't strictly about Chinese products: it's based on a Buy American test requiring over 65% US content and manufacture, so a US-brand inverter assembled overseas could be restricted, while a foreign brand could qualify if enough of it is built domestically. If you already have a solar or battery system installed, this doesn't affect it. Systems on roofs and in RVs today keep working, and dealers can still sell inventory of already-approved models. The rule only blocks new, not-yet-approved connected inverters from entering the market going forward. Where this could matter down the road is if you're planning a future solar, battery, or off-grid purchase. Popular brands common in portable and off-grid setups rely heavily on overseas manufacturing, and it's unclear how quickly, if at all, they'll get approval for new models under the stricter rules. Larger US-based manufacturers with domestic factories, like Enphase, SolarEdge, and Tesla, are less exposed. In the near term, industry analysts expect the biggest impact on smaller off-grid and portable solar products rather than standard rooftop installations, where certified inventory is already stocked.
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