The quick answer for Western Massachusetts (2026)
- Who serves you decides everything. Eversource (former WMECo) covers most of Western Massachusetts, but towns like Holyoke, Westfield, and Chicopee run their own municipal light plants with different rules (Mass.gov municipal electric companies, as of June 2026).
- Power here is expensive, which is what makes solar pay. Massachusetts residential electricity averages about 30.21 cents per kWh (EIA, as of March 2026), among the highest in the country.
- Western Massachusetts is billed on its own Eversource rate schedule (the former WMECo tariff, the residential Rate R-1 class), separate from the Eastern Massachusetts (former NSTAR) rates (Cape Light Compact Eversource rate case, as of June 2026).
- Net metering credits a typical home near full retail value. Residential Class I systems up to 25 kW are cap-exempt and earn the standard credit (Mass.gov net-metering guide; EnergySage Eversource net metering, as of 2026).
- SMART still adds a per-kWh payment, now under the SMART 3.0 redesign the state approved in May 2026, paid to the system owner; ask your installer for the current value for your block (Solar Power World on SMART 3.0, as of June 2026).
- The 30% federal homeowner credit (Section 25D) ended for systems placed in service after December 31, 2025 (IRS, as of January 1, 2026), so a Western Massachusetts homeowner who buys in 2026 cannot claim it.
Western Massachusetts is a patchwork of electric utilities, so the first thing to settle before you go solar is who actually delivers your power. Eversource, through the company it used to call Western Massachusetts Electric (WMECo), serves most of the region, including Springfield, Pittsfield, Northampton, and Greenfield. But several Pioneer Valley and Berkshire towns run their own municipal electric departments and are not Eversource at all, and the northern Berkshires are partly National Grid. This page sorts out who serves your town, what Eversource pays for your solar in 2026, and how to tell if your roof is a good fit.
First, is Eversource even your utility? Western Massachusetts is a patchwork
This is the question that trips up the most Western Massachusetts homeowners, and it changes which programs you get. Eversource serves most of the four western counties through the former Western Massachusetts Electric (WMECo) system, but Western Massachusetts also has one of the densest clusters of municipal light plants in the state. A municipal light plant is a town-owned electric utility, and it is not covered by the statewide net-metering and SMART rules that apply to Eversource. If your town runs its own electric department, your solar credits come from that department’s policy, not from Eversource, so confirm your utility before you compare quotes. The quickest check is the state’s Find My Electric Company tool.
| Western Massachusetts town | Who delivers your power | Solar program path |
|---|---|---|
| Springfield, Pittsfield, Northampton, Greenfield, Amherst, Agawam, West Springfield | Eversource (former WMECo) | Statewide net metering and SMART through Eversource |
| Holyoke | Holyoke Gas & Electric (municipal) | The town utility’s own solar policy, not Eversource |
| Westfield | Westfield Gas & Electric (municipal) | The town utility’s own solar policy, not Eversource |
| Chicopee | Chicopee Electric Light (municipal) | The town utility’s own solar policy, not Eversource |
| South Hadley, Russell, Chester | Municipal light plants | The town utility’s own solar policy, not Eversource |
| North Adams (northern Berkshires) | National Grid | Statewide net metering and SMART through National Grid |
Sources: Mass.gov municipally-owned electric companies, Chicopee Electric Light, Westfield Gas & Electric, and the Pittsfield municipal aggregation page (all as of June 2026).
Note: If you live in a municipal light plant town like Holyoke, Westfield, or Chicopee, solar can still make sense, but the net-metering credit, any local incentive, and the application process are set by your town’s electric department, not by the statewide programs described below. Call your municipal utility for its current solar and interconnection terms. If you are a National Grid customer in the northern Berkshires, see our National Grid Massachusetts page instead.
See what solar programs are available in your ZIP code
Solar incentives, net-metering credits, installer availability, and electric rates change by utility and location. Enter your ZIP and we’ll match you with licensed installers who serve your area.
Free to check. About a minute. No credit pull to check.
Submitted securely and used to match you with licensed installers in your area. Some homeowners may qualify for $0-up-front lease/PPA options where available.
What you pay per kWh in Western Massachusetts, and the WMECo rate schedule
The reason solar pays in Western Massachusetts is the price of the power it replaces. Massachusetts residential electricity averages about 30.21 cents per kWh (EIA, as of March 2026), one of the highest rates in the nation, so every kilowatt-hour your roof makes offsets an expensive one you would otherwise buy. Eversource bills Western Massachusetts on a separate rate schedule from Eastern Massachusetts: the western territory is the former Western Massachusetts Electric (WMECo) system, with its own residential Rate R-1 distribution tariff filed with the state, distinct from the Eastern (former NSTAR) rates (Cape Light Compact Eversource rate case, as of June 2026). The statewide EIA average is the figure to plan around; for the exact cents on your own bill, read the supply and delivery lines on your Eversource statement, since both reset on a schedule.
Your production is what turns that high rate into savings. Western Massachusetts gets a solar resource similar to the rest of southern New England, and a well-placed roof produces enough to offset a large share of a typical home’s use across the year. Because output depends on your roof’s pitch, shading, and orientation, and because the hill towns and the Berkshires carry more tree cover and winter snow than the coast, estimate your specific roof with NREL’s free PVWatts calculator rather than a generic number. Your production drives both your net-metering credits and your SMART payments, so it is worth getting right before you size a system.
How Eversource credits the power you send back
Net metering in Western Massachusetts is the same statewide framework that applies to Eversource East, and it credits a normal home near full retail value. Massachusetts net metering is set by state law and regulation, M.G.L. c.164 sections 138 and 139 and 220 CMR 18.00, not by Eversource (Mass.gov net-metering guide). A residential Class I system of 25 kW or less is cap-exempt, after the state raised the residential threshold from 10 kW to 25 kW AC in 2025, so a typical home is never shut out of the program and earns the standard credit, valued near the full bundled retail rate rather than the reduced market credit that applies to much larger systems (EnergySage Eversource net metering, as of 2026). Credits are tracked in dollars and roll forward month to month. Once a year, around March, Eversource’s tariff cleans up any leftover balance at a lower rate, so the smart move is to size a system close to your annual usage. For the mechanics, see how net metering credits your solar exports, and for the full statewide rules see our Massachusetts solar guide.
| What you earn | How it is valued | Who receives it |
|---|---|---|
| Monthly net-metering credits | Near full retail value, tracked in dollars and rolled forward | The Eversource account holder |
| Year-end leftover balance | A lower tariff rate, below retail, cleaned up around March | The account holder |
| SMART payments | A per-kWh incentive over a multi-year term | The system owner |
To see how the bill credit lowers your monthly cost, read how solar lowers your electricity bill, and to weigh payback, see the financial case for whether solar panels are worth it.
SMART on an Eversource Western Massachusetts account
SMART is a separate per-kWh payment on top of net metering, and Eversource administers it for its Western Massachusetts customers. The Solar Massachusetts Renewable Target program runs through the state’s three investor-owned utilities, Eversource, National Grid, and Unitil, so an Eversource customer in Springfield or Pittsfield enrolls through Eversource just as an Eversource customer in Boston does (Solar Power World on SMART 3.0). The program is the same statewide; only which capacity blocks are open has ever differed by territory. Massachusetts overhauled the program into SMART 3.0, which the Department of Public Utilities approved in May 2026, and for standard residential systems it pays a per-kWh incentive over a multi-year term, reported at around 20 years for residential under the redesign (SMART 3.0 guide, as of 2026). The per-kWh value is set by the state and resets over time, recently reported near 3 cents per kWh for standard residential (EnergySage Massachusetts incentives, as of 2026), so do not budget around an old figure; ask your installer to pull the current value for your block, and note that pairing a battery can add a storage adder. The payment goes to the system owner, so on a lease or PPA the company that owns the panels collects it.
The rest of Massachusetts’ solar benefits, on a Western Massachusetts account
Beyond net metering and SMART, Massachusetts gives Eversource customers in the west the same statewide benefits as everyone else in the state:
- A state income-tax credit (Schedule EC) worth 15% of the net system cost, capped at $1,000 (Mass.gov 2025 Schedule EC, as of 2026).
- A 100% sales-tax exemption on qualifying solar equipment, off the state’s 6.25% rate (EnergySage Massachusetts incentives, as of 2026).
- A 20-year property-tax exemption on the added home value from a qualifying solar system, under Clause 45 (M.G.L. c.59 s.5, Clause Forty-fifth, as of 2026).
The state income-tax credit and the SMART payment go to the system owner, so on a lease or PPA the company that owns the panels keeps them, while the net-metering bill credit still follows your Eversource account. These benefits stack on top of net metering and are the same in Springfield as in Boston, which is why we keep the full statewide detail on our Massachusetts solar guide rather than repeating it here.
How to connect solar to Eversource in Western Massachusetts
Connecting a home system to Eversource follows a set order, and the key rule is that you cannot turn the system on until Eversource grants Authorization to Connect, also called Permission to Operate. The general path is:
- Interconnection application. You or your installer submit an application through Eversource’s online Distributed Generation portal for its Massachusetts territory.
- Review and approval. Eversource reviews the system against the state interconnection standards; small residential systems usually qualify for the simplified or expedited path, and Eversource issues an interconnection agreement.
- Install and inspect. The system is installed and passes your local electrical inspection.
- Meter set. Eversource installs or reprograms a bidirectional net meter, with no separate charge for the net meter itself.
- Authorization to Connect. Eversource issues written Authorization to Connect. The system may not run in parallel with the grid before this.
- Enroll in SMART. You complete SMART enrollment through Eversource, a separate step tied to your interconnection.
A licensed installer normally manages this whole process for you, but knowing the order helps you spot a quote that promises an instant switch-on. For what to ask, see the right questions to ask a solar installer.
What changed federally, and what it means for Western Massachusetts customers
The federal homeowner credit is gone, but Massachusetts’ programs are not. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act, so an Eversource customer in Western Massachusetts who buys solar with cash or a loan in 2026 cannot claim it (IRS Residential Clean Energy Credit; SEIA). You may still see search results and installer pages asking whether the 30% credit is going away; the accurate answer for 2026 is that the homeowner version already ended. Net metering, the SMART incentive, and the state’s income-tax credit and tax exemptions were not affected, and at Massachusetts’ high rates the bill offset alone is substantial. For the full timeline, see what the federal solar tax credit change means in 2026.
One federal exception exists, and it is not yours to claim. A separate commercial credit, Section 48E, is claimed by the business that owns a leased or PPA system, not by the homeowner (IRS Clean Electricity Investment Credit). For a leased system on an Eversource account you do not file for a federal credit yourself; the company that owns the panels does. The 25D homeowner credit, by contrast, ended after December 31, 2025.
How to choose a solar installer in Western Massachusetts
Western Massachusetts has a deep, locally-rooted solar market, with independent installers and a worker-owned cooperative serving the Pioneer Valley and the Berkshires alongside the national brands. That local depth is good for you, because it means real competition on price and service. Rather than chasing a “best installer” list, screen any company against objective criteria:
- NABCEP certification, the industry’s professional standard for PV installers.
- A valid Massachusetts Home Improvement Contractor (HIC) registration and electrical licensing.
- A clear workmanship and equipment warranty in writing.
- Real experience with Eversource interconnection and current SMART values, so the paperwork and Authorization to Connect go smoothly.
- A written production estimate and a transparent quote that uses today’s SMART value, not an old one. For a checklist, see the right questions to ask a solar installer.
MySolarFY matches you with licensed installers that serve your area so you can compare real local quotes side by side, with no obligation.
Serving a specific Pioneer Valley city? See our local solar guide for how solar works in Springfield, the largest city in Eversource’s Western Massachusetts territory.
Frequently asked questions
Is my Western Massachusetts town served by Eversource or a municipal utility?
It depends on the town. Eversource, through the former Western Massachusetts Electric (WMECo) system, serves most of the region, including Springfield, Pittsfield, Northampton, Greenfield, Amherst, Agawam, and West Springfield. But several towns run their own municipal light plants and are not Eversource, including Holyoke, Westfield, Chicopee, and South Hadley, and the northern Berkshires around North Adams are served by National Grid (Mass.gov municipal electric companies, as of June 2026). Your utility decides which solar programs you get, so confirm it with the state’s Find My Electric Company tool before you compare quotes.
How much is the Eversource rate in Western Massachusetts?
Massachusetts residential electricity averages about 30.21 cents per kWh (EIA, as of March 2026), among the highest in the country. Eversource bills Western Massachusetts on a separate rate schedule from Eastern Massachusetts, the former WMECo residential tariff, so your exact cents differ slightly from a Boston customer’s, but both are high (Cape Light Compact Eversource rate case, as of June 2026). For the precise figure, read the supply and delivery lines on your own Eversource bill, since both reset on a schedule. That high rate is the main reason rooftop solar pays in the region.
Does Western Massachusetts get enough sun for solar to be worth it?
Yes. Western Massachusetts gets a solar resource similar to the rest of southern New England, and a well-placed roof offsets a large share of a typical home’s annual use. Output does vary with your roof’s pitch, shading, and orientation, and the hill towns and Berkshires see more tree cover and winter snow than the coast, so a generic estimate is not enough. Use NREL’s free PVWatts calculator for your own address, since your production sets how much your net-metering credits and SMART payments are worth.
Does Eversource pay the SMART solar incentive in Western Massachusetts?
Yes. Eversource is one of the three Massachusetts utilities that administer SMART, with National Grid and Unitil, so a Western Massachusetts customer enrolls through Eversource (Solar Power World on SMART 3.0). Under the SMART 3.0 redesign the state approved in May 2026, the program pays a per-kWh incentive to the system owner over a multi-year residential term. The value is set by the state and resets over time, so ask your installer for the current figure for your block rather than relying on an old number, and note that adding a battery can qualify for a storage adder. On a lease or PPA, the company that owns the panels collects the SMART payment.
What happened to the federal solar tax credit?
The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act (IRS). A Western Massachusetts homeowner who buys solar in 2026 with cash or a loan cannot claim it. A separate commercial credit, Section 48E, can apply to leased and PPA systems, but the business that owns the system claims it, not the homeowner. Massachusetts net metering, the SMART incentive, and the state tax benefits were not affected, so the local payback case still holds. See our guide on what the federal solar tax credit change means in 2026.
Do I qualify for solar credit on a lease or PPA in Western Massachusetts?
Net-metering credits follow the Eversource account, so the account holder sees them whether you own, lease, or sign a PPA. The SMART payment and Massachusetts’ state income-tax credit and tax exemptions go to the system owner, so on a lease or PPA the third-party company keeps them, while your benefit is a lower or fixed power price with no up-front cost. If you want SMART and the state credit in your own name, owning the system through cash or a loan is the path that captures them. A lease or PPA is not free solar; it is a long-term agreement with monthly payments, so compare the total cost against owning.
Reviewed by the MySolarFY team. Figures were verified against the linked Massachusetts (Mass.gov / DOER / DPU, Eversource, and the municipal utilities), EIA, and IRS sources as of June 2026; net-metering tariff clean-up rates, the SMART 3.0 value and term, and which towns are served by Eversource versus a municipal light plant can change, so confirm current terms with your utility and Mass.gov before you decide. MySolarFY does not provide tax or financial advice; consult a licensed professional about your own situation. Learn more about the MySolarFY team and how we work.
MySolarFY is a free service that matches homeowners with licensed solar installers. We are not an installer, financing company, or government program. “No up-front cost” refers to qualifying lease or PPA financing, where eligible homeowners may have no out-of-pocket cost at installation. Lease and PPA terms typically run 20 to 25 years, may include an annual price escalator, and total payments may exceed the cost of a cash purchase; on a lease or PPA the SMART payment and tax benefits go to the company that owns the system, not the homeowner. Homeowners do not get the federal residential credit that ended after December 31, 2025. Solar panels are not free and monthly payments apply. Eligibility, savings, incentives, and rates vary and are not guaranteed. See our full disclaimer.
