Residential & Small-Scale Solar Hot Water Program

Massachusetts offers multiple incentives for solar hot water systems: Alternative Energy Certificates (AECs) provide a one-time payment of approximately $400–$1,000 for a two-collector system, a state tax credit of 15% of system cost (up to $1,000), and financing through Mass Save® HEAT Loan at 0% interest for up to 7 years or the Energy Saver Home Loan Program at up to 2% interest for up to 20 years. After these incentives, a solar hot water system for a 2,000 sq ft home costs approximately $9,800 upfront, and the system can provide up to 80% of your home's hot water heating needs.

Solar hot water contractors should highlight that Massachusetts homeowners can access substantial state incentives including AECs, a 15% state tax credit (capped at $1,000), and 0% interest financing through Mass Save® HEAT, making the technology cost-competitive compared to oil, propane, or electric heating. Municipal Light Plants may offer additional rebates depending on the customer's service area, and contractors should direct clients to check their local MLP website for supplemental incentives.

The Massachusetts Clean Energy Center administers this program by directing customers to state and federal solar hot water incentives: the Department of Energy Resources provides Alternative Energy Certificates (yielding approximately $400–$1,000 per two-collector residential installation), the state offers a 15% tax credit up to $1,000, and Mass Save® and Energy Saver loans provide 0% to 2% financing. The program targets residential, multifamily, low-income, nonprofit, and institutional sectors across communities served by traditional utilities and Municipal Light Plants, with estimated net costs of approximately $9,800 for a typical residential system after incentives.