Cambridge’s Net Zero Goal Starts on Your Roof
The city with a plan to hit carbon-neutral buildings by 2050 has every incentive for you to join the mission.
See Your SavingsWhy Cambridge Is Going All-In on Solar
Cambridge doesn’t just talk about climate goals — it puts them in writing. The city’s Net Zero Action Plan, first adopted in 2015 and updated in 2023, commits to carbon-neutral buildings by 2050. Solar panels on city buildings like Cambridge Rindge & Latin High School and City Hall Annex are already generating clean power. For homeowners around Harvard Square, Porter Square, and Inman Square, the question isn’t whether solar makes sense — it’s why you haven’t done it yet.
With Eversource supply rates hitting 15.6 cents per kWh in February 2026 and total bills averaging around 34 cents per kWh, Cambridge residents are paying a premium for electricity. The Cambridge Community Electricity program negotiates better rates, but solar takes savings to a completely different level — generating your own power, earning net metering credits, and collecting MREC payments for 25 years.
40%
Lower Monthly Payments
$0
Upfront Cost
2050
Net Zero Target Year
Federal Solar Tax Credit for Cambridge Homeowners
Cambridge homeowners served by Eversource benefit from the federal solar tax credit, which delivers significant savings on solar installations. Through solar leases and PPAs, the value of this credit is automatically applied to your plan — no tax filings, no waiting for refunds. You get a lower monthly payment from day one.
In a city where the median home price exceeds $1 million, the federal credit makes solar an even more attractive investment. You’re protecting a high-value property with clean energy while locking in a rate far lower than what Eversource charges today — and what they’ll charge tomorrow.
How Massachusetts Incentives Work in Cambridge
Cambridge residents access every Massachusetts solar incentive, and they’re worth more here than almost anywhere. The MREC program pays you for every kilowatt-hour your panels generate for 25 years. The property tax exemption is extraordinarily valuable in Cambridge — with median home values over $1 million, the added value from solar stays entirely in your pocket, tax-free. The 6.25% sales tax exemption saves thousands on the system itself.
The Sunny Cambridge initiative makes it easy for all types of residents to explore solar. And for the many Cambridge residents in condos and multifamily buildings who can’t install rooftop panels, Community Shared Solar provides a way to subscribe to an off-site system and receive credits on your Eversource bill. The Mass Solar Loan Program is also available for those who prefer to purchase.
Property Tax Exemption on $1M+ Homes
Cambridge has some of the highest home values in Massachusetts. The state property tax exemption means solar adds value to your home — potentially $20,000 or more — without increasing your Cambridge property taxes by a single dollar.
Eversource Net Metering in Cambridge
Eversource offers net metering for residential solar customers throughout Cambridge. When your panels generate more electricity than your home uses, the excess goes back to the grid and you earn credits on your Eversource bill. Those credits offset your usage during evenings, cloudy days, and the winter months when production naturally dips.
For Cambridge homeowners, net metering is especially practical because it eliminates the need for expensive battery storage. You use the Eversource grid as your battery — banking excess production in the summer and drawing credits in the winter. Credits roll over month to month, keeping your bill low year-round.
Cambridge-Specific Solar Benefits
High-Value Tax Exemption
With Cambridge home values over $1M, the property tax exemption on solar is worth more here than almost anywhere in Massachusetts.
Eversource Net Metering
Excess solar energy earns credits on your Eversource bill. Use the grid as your battery — no storage needed.
Net Zero Action Plan
Cambridge’s official climate plan supports and incentivizes residential solar as part of the city’s 2050 carbon-neutral goal.
Condo & Renter Options
Community Shared Solar lets Cambridge renters and condo owners save on electricity without rooftop panels.
How Solar Saves a Cambridge Homeowner
A typical Cambridge home uses about 8,500 kWh per year. At Eversource’s current all-in rate of roughly 34 cents per kWh, that’s about $241 per month. With solar, you can go $0 upfront and pay approximately 40% less — around $145 per month — while generating your own clean energy. All federal, state, and local incentives are already factored into that number.
Over 25 years, between lower monthly payments, MREC credits, and avoided Eversource rate increases, the total savings for a Cambridge home can reach $40,000 or more. Given that Eversource rates jumped 12.3% in a single rate period in 2025, the protection from rate volatility alone is worth the switch.
How It Works
Free Consultation
We evaluate your Cambridge home, energy usage, and roof. The Sunny Cambridge program can also help connect you with solar resources.
Custom System Design
Our engineers create a panel layout optimized for your roof, accounting for Cambridge’s dense urban environment and local building codes.
Permitting & Approvals
We handle all Cambridge Inspectional Services permits, Eversource interconnection paperwork, and any condo association or historic district approvals.
Professional Installation
Our certified installers mount your solar system, typically completing the job in one to two days.
Inspection & Activation
After passing Cambridge city inspection and receiving Eversource permission to operate, your system goes live. Welcome to the Net Zero mission.
Frequently Asked Questions
✶Can I install solar on a Cambridge condo or multifamily building?+
✶How does Cambridge’s Net Zero Action Plan affect solar?+
✶What is Cambridge Community Electricity?+
✶Will solar panels increase my Cambridge property taxes?+
✶Are there historic district restrictions for solar in Cambridge?+
✶How much does solar save Cambridge homeowners?+
Cambridge Eversource Bills Are Only Going Up
Eversource rates in Eastern MA jumped 12.3% in 2025. Lock in a lower rate today with solar.
See How Much You Can SaveWhat’s Really on Your Eversource Bill in Cambridge?
57% of your bill is hidden fees and charges!
Delivery Charges
Line items like "customer charge" and "energy efficiency charge" make up the bulk of hidden fees on your Eversource Eastern MA bill.
17%
of your bill
Distribution
Covers the poles, wires, and infrastructure that deliver power through Cambridge’s dense urban grid to your home.
27%
of your bill
Transmission
What Eversource charges for transporting power from generating stations to Cambridge’s local distribution network.
13%
of your bill
Actual Supply
The electricity you actually use—just 43% of what you pay.
43%
of your bill
Solar Eliminates All These Charges
When you go solar, you no longer rely on the utility company to produce electricity—and no longer have to pay their ridiculous charges. Instead, you produce your own power with a low, locked-in solar rate.
Eliminate Your Electric Bill TodayIs Solar Really Free in Cambridge?
While you can’t technically get “free” solar panels, they are “free” in the sense that you can expect to pay less for solar than you already do for electricity — and it costs nothing to make the switch.
You’re swapping out an unpredictable Eversource bill for a price-protected solar payment that is usually about 40% lower. In a city where everything costs a premium, your electricity doesn’t have to.
Need a New Roof? Bundle and Save.
Our Roof + Solar Bundle makes it easy for Cambridge homeowners to get a new roof and solar at the same time. Since the roof is an essential part of the solar project, you save big by bundling.
Learn About Roof + SolarJoin Cambridge’s Clean Energy Future
Get a free personalized quote and see how much you can save with Cambridge solar incentives. Our team handles everything — permits, Eversource paperwork, and historic district approvals.
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