What Efficiency Maine Trust pays, the condition attached to each figure, who qualifies, who may do the work, and the page to apply on.
Maine is taking applications now, through Residential Heat Pump Rebates, run by Efficiency Maine Trust. The largest heat pump figure it prints is $13,900. It is one of only 13 states out of 50 where a homeowner can apply today.
Start the application at Efficiency Maine Trust Residential Heat Pump Rebates, Efficiency Maine
Read September 23, 2026.
Each figure carries the condition Efficiency Maine Trust attached to it, and the condition is the half that decides whether the figure applies to a particular house. Where the office wrote a sentence beside the number, that sentence is reproduced whole and linked to the page it was read from, because a paraphrase of an eligibility rule is a different statement than the rule.
$3,000 per rebate-eligible outdoor unit up to a lifetime limit of $9,000
Applies low income household.
Low income – $3,000 per rebate-eligible outdoor unit up to a lifetime limit of $9,000 in heat pump rebates per housing unit*Efficiency Maine Trust, read September 23, 2026. Read it at the source
$2,000 per rebate-eligible outdoor unit up to a lifetime limit of $6,000
Applies moderate income household.
Moderate income – $2,000 per rebate-eligible outdoor unit up to a lifetime limit of $6,000 in heat pump rebates per housing unit*Efficiency Maine Trust, read September 23, 2026. Read it at the source
$1,000 per rebate-eligible outdoor unit up to a lifetime limit of $3,000
Applies any income.
Any income – $1,000 per rebate-eligible outdoor unit up to a lifetime limit of $3,000 in heat pump rebates per housing unit*Efficiency Maine Trust, read September 23, 2026. Read it at the source
$13,900
Applies ducted heat pumps for single-wide mobile homes, low income maximum.
Ducted Heat Pumps for Single-Wide Mobile Homes $13,900 $6,000 $3,000Efficiency Maine Trust, read September 23, 2026. Read it at the source
$3,000
Applies maximum at every income level.
Geothermal $3,000 $3,000 $3,000Efficiency Maine Trust, read September 23, 2026. Read it at the source
$1,150
Applies maximum at every income level.
Heat Pump Water Heater $1,150 $1,150 $1,150Efficiency Maine Trust, read September 23, 2026. Read it at the source
$8,000
Applies low income maximum; $6,000 moderate income; $4,000 any income.
Insulation $8,000 $6,000 $4,000Efficiency Maine Trust, read September 23, 2026. Read it at the source
Income and the contractor list are where the largest number of applications stop, and both are usually discovered late. Nationally 34 states publish an income rule and 28 of those tier the award by it, meaning income decides how much is paid rather than only whether anything is; 23 require the work to go through a contractor the programme has approved, which generally excludes work a homeowner does themselves.
Income decides the size of the award in Maine, or whether there is one at all. Three rebate tiers, set by whether the household is on a listed benefit programme or by adjusted gross income.
Low-Income – Homeowner or homeowner’s household member participates in MaineCare, HEAP, SNAP, or TANF and income eligibility verified here. Moderate-Income – Homeowner’s Adjusted Gross Income (AGI) is up to $70,000 for individual tax filers, or $100,000 for joint filers and income eligibility verified here. Any Income – Homeowner of any incomeEfficiency Maine Trust, read September 23, 2026. Read it at the source
The work has to go through a contractor the programme has approved. the work must be done by a vendor on the programme's registered list
Must be installed by an Efficiency Maine Residential Registered Vendor for heat pumpsEfficiency Maine Trust, read September 23, 2026. Read it at the source
These are two separate programmes and conflating them is the commonest error on pages about this. A Maine rebate is money off the job, applied for through Efficiency Maine Trust under its own rules. The federal credit is money off a tax bill, claimed when filing, with no application and no approval step. Different timing, different paperwork, and qualifying for one says nothing about qualifying for the other.
Efficiency Maine Trust does not address on its own pages whether the two can be claimed on one job. Only 10 state offices do, so the silence is normal rather than a signal either way.
Maine is in the smaller group. 13 of the fifty states are taking applications from homeowners, against 31 that have announced a programme and never opened it and 6 in some other state of suspension. An open programme can close: at least one state has reserved its funding, shut, and reopened more than once inside two years.
Across the country 155 separate dollar figures are printed and 21 states print none at all. The spread has little to do with climate: it tracks how each state chose to divide a federal allocation between a small number of large whole home awards and a large number of small per appliance ones.
Maine read September 23, 2026 from Efficiency Maine Trust’s own pages, linked beside every figure and every rule. A programme can open, reserve its funding and stop taking applications inside a single season, so the office page linked above is what governs on the day. Every state is on the home energy rebates hub.