MassCEC’s Solar Hot Water program providesdrebates for the installation of solar hot water (SHW) systems at businesses across Massachusetts. This program is part of MassCEC’s suite of Clean Heating and Cooling programs, which support technologies that provide customer cost savings and environmental benefits while maintaining a high level of comfort and reliability.

Installers should visit the Installer Resources page

Once your project has received an award letter from MassCEC, your installer can install your solar hot water system. Once the system is installed, you can submit your project completion documents and MassCEC will send out the rebate check. Installers typically submit completion documents on the homeowner's behalf. With each project completion, MassCEC asks for: 

  • Project Completion Form 
  • Photos of the installed system 
  • Copy of the final paid invoice 
  • Electric Bill (if new construction) 

How do Solar Hot Water systems operate? 

Please visit our Solar Hot Water page to learn about how solar hot water systems operate.  

How do I find an installer for a solar hot water system? 

Please visit our installer page to a list of installers that serve your area. 

I finished construction on my project, how do I receive payment for my award? 

For grantees, once construction is complete, please submit your Completion Documents to Detailed instructions can be found under "How Do I Submit Completion Documents?"

MassCEC has authorized $10 million in funding for the Commonwealth Solar Hot Water Program from 2012 through 2020.


Please click here to download the commercial solar hot water projects database

For questions on the SHW program, please contact us at or (617) 315-9300.