Net metering
Credits for the surplus power you send to the grid. They don’t expire, and roll forward month to month.
Updated September 2026
What’s available changed in 2026. Here’s what still applies to you, and how to pay for the rest.
What’s available
Credits for the surplus power you send to the grid. They don’t expire, and roll forward month to month.
A Massachusetts incentive paid on the power your system produces.
A $1,000 Massachusetts income tax credit for homeowners who install solar.
Seasonal payments for letting the utility draw on your battery at peak times. Works with or without solar.
30% of the system cost, with adders that can stack higher. Commercial and leased systems, through 2027.
Accelerated depreciation on the system as a business asset, on top of the credit.
The federal tax credit for homeowners who own their system (25D) ended on 31 December 2025. A leased system still qualifies for 48E through 2027, claimed by the leasing company.
Ways to pay
Cash
Solar loan
Hybrid loan/lease
Lease
If your own bank can beat solar loan rates, we’ll tell you to use it.
Incentives change and depend on your situation. This is not tax advice: consult your tax advisor.