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Maine

Where heat pumps have already won.

Maine has installed over 200,000 heat pumps, more per capita than any other state, and Efficiency Maine's rebate programs have only gotten more aggressive. The Trust operates a $529M triennial plan independent of federal policy shifts, with low-income households receiving up to $9,000 per installation and a $500 whole-home bonus running through December 2026.

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$9,000
Max low-income heat pump rebate
200,000+
Heat pumps installed statewide
$500
Whole-home bonus (2026 limited)
ME · Maine
A modern farmhouse in a Maine pine forest, snow on the ground
Why now · Maine

Your rate climbed 80%+ in 15 years.

You paid 14¢ per kilowatt-hour in 2010. Today you pay 25¢. CMP and Versant rate cases have pushed residential bills up 6–12% YoY since 2022.

The hedge Solar locked at 8¢/kWh, flat 25 yrs
See how solar locks you in
Residential rate · Maine
2010–2025 · cents per kWh
0¢ 10¢ 20¢ 30¢ 2010201520202025 US avg $0.169/kWh CMP 25.0¢ Versant 26.0¢ Solar 8.0¢ your rate hedge ¢/kWh, residential
CMP Versant Solar LCOE US national average
Source · EIA Form 861, residential class, 2010–2025. State averages and the US national line both pulled from the same dataset for an apples-to-apples comparison.
Major utilities coveredCentral Maine Power (CMP), Versant Power
A real example · Bangor, ME

What an oil-to-heat-pump rebate stack actually looks like.

A 3-ton cold-climate ducted heat pump qualifies for the Efficiency Maine whole-home rebate at $8,000, with the Low-Income tier reaching $11,500. The NE Heat Pump Accelerator adds $650 in 2026. Efficiency Maine 0% APR financing covers up to 10 years.

See the programs that make this stack
Maine · Programs

Every program, every rebate.

Each one has its own deep-dive page: eligibility rules, rebate amounts, worked examples, timelines, and FAQs.

Heating & CoolingFlagship
Efficiency Maine Heat Pumps
The state's flagship oil-displacement program.
$11,500
Low-income whole-home

Efficiency Maine administers the most aggressive heat pump deployment program in the country. Standard whole-home rebates reach $8,000, low-income households up to $11,500, with technology-specific bonuses for ductless and cold-climate models.

Read full details
5 rebates · 4 FAQs
Solar
Solar in Maine
Net Energy Billing locked at retail rate, 20-year term.
Retail
NEB credit, 20-yr
Insulation
Efficiency Maine Weatherization
Free home assessment + insulation rebates.
$8,000
Whole-home rebate
Energy Storage
Energy Storage Overview
Backup for ME’s storm-prone grid + bill-shaping.
$1-3K
Per major outage
Windows & Doors
Windows & Doors Overview
Comfort, draft reduction, durability that pays back.
Up to 25%
Annual heating bill cut
Beyond Efficiency Maine Trust

Your utility offers extras on top.

CMP, Versant Power, and Efficiency Maine Trust split the rebate stack: heat pump cash, NEM 1.0 credit, and ConnectedSolutions battery payments.

See all utility programs in Maine
Other states we serve

The rebate stack varies by state.

We track every program in 11 states. Pick yours to see the full picture.

NY New York NH New Hampshire NJ New Jersey VT Vermont MD Maryland RI Rhode Island MI Michigan CT Connecticut FL Florida MA Massachusetts

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