Energy Efficiency Rebates

Mass Save - HEAT Loan Program

Western Massachusetts Elec Co residential energy efficiency rebate program

program summary

Residential customers of Cape Light Compact, National Grid, Eversource, Unitil, and municipal electric customers served by Columbia Gas of Massachusetts or Liberty Utilities may be eligible for zero-interest financing to help increase the energy efficiency of their homes through the Mass Save HEAT Loan Program. This financing is available to all residential customers who own and reside in a one to four-family residence, obtain a Home Energy Assessment through the Mass Save Program, and install the recommended energy efficiency improvements.

The loans are available up to $50,000 (depending on utility) with terms of up to seven years.  Energy efficiency improvements eligible for the HEAT Loan include:

  • Insulation and air sealing
  • High-efficiency heating systems
  • Central air conditioning/air-source heat pumps
  • Ductless mini split heat pumps
  • High-efficiency domestic hot water systems
  • Solar hot water systems
  • ENERGY STAR-certified windows

Customers must first complete a free Home Energy Assessment to find out which improvements will be eligible for HEAT loan program financing and to receive program paperwork. Customers may call Mass Save at (866) 527-7283 to schedule an assessment.

eligible technologies
Biomass, Boilers, Building Insulation, Duct/Air sealing, Furnaces, Geothermal Heat Pumps, Heat pumps, Other EE, Solar Water Heat, Tankless Water Heater, Water Heaters, Windows
program administrator
MassSAVE
list of rebates
- Maximum rebate of $50000 (Biomass)
- Maximum rebate of $50000 (Boilers)
- Maximum rebate of $50000 (Building Insulation)
- Maximum rebate of $50000 (Duct/Air sealing)
- Maximum rebate of $50000 (Furnaces)
- Maximum rebate of $50000 (Geothermal Heat Pumps)
- Maximum rebate of $50000 (Heat pumps)
- Maximum rebate of $50000 (Other EE)
- Maximum rebate of $50000 (Solar Water Heat)
- Maximum rebate of $50000 (Tankless Water Heater)
- Maximum rebate of $50000 (Water Heaters)
- Maximum rebate of $50000 (Windows)
program notes
2024-05-23 19:40:21
Annual review: changed max incentive to $50,000
2023-04-05 15:12:26
Annual review, removed expanded HEAT loan financing, no other changes
2020-06-03 01:17:13
Annual review, no changes to program.
2019-01-02 17:12:21
Minimal changes.
2017-03-21 15:01:58
Annual review; expanded HEAT loan program offerings are still available.
2015-06-05 18:51:31
Annual review; added information about limited-time expanded HEAT offerings.