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Commonwealth Solar Hot Water (Residential) - FAQ
How much will my rebate be?
Homeowners are eligible for a base rebate amount of the lesser of $4,500 or 40% of the installed cost. The system may also be eligible to receive additional funding (“adders”) which increase the amount of the rebate. Adders are detailed in the Program Manual.
Why isn’t everyone in Massachusetts eligible for this rebate program?
Projects receiving rebates through MassCEC must be located in a utility territory that contributes funding to the Renewable Energy Trust (RET), which includes communities served by investor owned electric utility companies or a participating municipal light plant.
What is an MLP and where are they?
MLP stands for “municipal light plant” and refers to communities who are serviced by a publicly owned local utility instead of an investor-owned electric company, such as National Grid or Eversource. Some of these MLP communities contribute to the RET, which is the original source of our funding for rebates. We are unable to provide rebates to MLP communities that do not contribute to the RET.