What is eligible to participate in APS?

All Renewable Thermal Generation Units must:

• Generate useful thermal energy using sunlight, biomass, biogas, biofuel or naturally occurring temperature differences in ground, air or water
• Deliver a useful thermal load to a facility located in Massachusetts
• Have an operation date of January 1, 2015, or later

Eligible APS Renewable Thermal technologies include:

• Air source heat pumps systems
• Ground source heat pumps systems
• Solar thermal systems
  • Solar hot water
  • Solar hot air
  • Solar sludge drying
• Woody biomass systems
  • Wood pellet
  • Wood chip
• Liquid biofuel systems
• Biogas systems
• Deep geothermal systems
• Compost heat exchange systems

For more information on eligibility, please visit DOER’s website. Any questions should be directed to DOER at [e-mail].