Maine headline: Up to $10,000 combined Efficiency Maine + HEEHRA. State runs the most generous state-funded heat pump program in the US.
Active programs
Efficiency Maine
The flagship program.1
| Equipment | Efficiency Maine rebate |
|---|---|
| Whole-home cold-climate ducted | $4,000 |
| Multi-zone ductless (4+ zones) | $4,000 |
| Single ductless head | $1,000 |
| Geothermal | $5,000 |
Maine HEEHRA
Administered by Efficiency Maine Trust.2
| Income tier | Cap |
|---|---|
| ≤80% AMI | $8,000 |
| 80-150% AMI | $4,000 |
Realistic example
Portland home replacing oil boiler with whole-home cold-climate ducted heat pump:
- Equipment + install: $20,000
- Efficiency Maine: $4,000
- HEEHRA at 80-150% AMI: $4,000
- Net cost: $12,000
What to do next
Use Efficiency Maine’s contractor finder. For broader context, see the 2026 heat pump rebate guide.
The 30-second summary:
- Efficiency Maine is the most generous state program in the US.
- Up to $4,000 alone, $10,000+ combined with HEEHRA.
- NEEP cold-climate certification required for full rebate.
- Strong oil-to-heat-pump conversion economics in ME.