At 65 North St., Williamstown, MA 01267, NES+G (New England Solar + Green) is dedicated to assisting businesses and homeowners in utilizing all of the programs that are available. Your transition to solar energy will be easy, seamless, and economical because our team takes care of system design, installation, permitting, and assistance with all incentive applications.
If you live or run a business in Williamstown, Massachusetts, there has never been a better time to switch to solar. Between rising utility rates, strong state climate goals, and some of the most generous renewable energy incentives in the country, going solar is not only an environmentally smart choice—it’s a financially strategic one.
Below, we break down the key solar incentives available to residents and businesses in Williamstown today.
The most significant incentive available nationwide is the Federal Solar Tax Credit, which allows you to deduct 30% of your system cost from your federal income taxes.
This includes: Solar panels
Inverters
Racking and hardware
Batteries
Labor and permitting
The credit applies to both residential and commercial systems and is locked in at 30% through 2032.
Massachusetts offers a 15% state tax credit, capped at $1,000 for residential solar installations. This is in addition to the federal credit.
Example:
If your system costs $30,000 → 15% = $4,500 → you receive the full $1,000 credit.
All solar equipment purchased in Massachusetts is 100% exempt from state sales tax, saving you an additional 6.25% up front.
When you install solar on your Williamstown home, the value it adds cannot be taxed for up to 20 years.
With solar increasing property value by an average of 4.1%, this exemption keeps thousands of dollars in homeowners’ pockets.
Massachusetts has one of the strongest net metering programs in the country.
With net metering, any excess electricity your panels produce is sent back to the grid and credited to your utility account.
This means:
✔ Lower electricity bills
✔ Credits you can use year-round
✔ Enhanced value for larger or south-facing roof systems
Williamstown homeowners served by utilities like National Grid or municipal systems that allow net metering can take full advantage of this program.
While SMART (Solar Massachusetts Renewable Target) incentives depend on utility zones—and availability can vary—solar installations in some parts of Massachusetts may still qualify.
NES+G can check your exact eligibility during your consultation.
Some incentives vary by utility provider or municipality, including:
Battery storage rebates
Low-income solar programs
Commercial renewable energy grants
EV-charging–connected incentives
As a local Williamstown solar company, NES+G stays up to date on all regional and utility-specific benefits so you don’t miss out on savings.
At New England Solar + Green, we are dedicated to providing top-tier solar panel installation with a local focus and an unwavering commitment to sustainability.
With Massachusetts electricity rates among the highest in the nation, solar customers often save:
Over $1,800 per year on electric bills
Tens of thousands of dollars over the life of their system
Plus, solar reduces your carbon footprint by up to 5 tons of CO₂ per year, and with battery storage, you enjoy energy resilience and blackout protection.
In Williamstown, switching to renewable energy has never been more satisfying. Homeowners and businesses may benefit from long-term savings and clean, reliable power thanks to NES+G’s local knowledge, robust net metering laws and generous federal and state incentives. NES+G is available to assist you at every stage of your journey to a more sustainable future.