*The average cost after incentives is an estimate based on a 2,000 square foot MA home and includes federal tax credits and/or Mass Save® rebates. Incentives for customers who currently have oil, propane, or electric resistance heat or hot water are higher than for customers who currently have natural gas heat or hot water. Actual costs may vary.
**The estimated cost of solar PV is based off actual MA projects from 2019 – 2021 and includes federal and state tax incentives. The average system size in Massachusetts is 9 kW DC. Over the lifetime of the system, additional revenue can be generated through energy savings or other incentive programs such as the SMART program. Please visit MassCEC’s Solar Cost Comparison Tool for examples of residential solar installations from 2001 – 2018.