Solar Panel Cost in Worcester, MA 2026: ~10.8-Year Payback
In Worcester, MA, an 8 kW system at $2.91/W produces about 1,252 kWh per kW and pays back in roughly 10.8 years at 23.07¢/kWh with the federal credit at $0.
· Source: EIA Electric Power Monthly Table 5.6.A (July 2026 data) · next EIA update ~Oct 23
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- Worcester production
- 1,252 kWh/kW/yr
- Massachusetts average
- 1,250 kWh/kW/yr
- Electricity rate
- 30.5¢/kWh
- 8 kW installed cost
- ~$23,280
- 2026 federal credit
- $0
- Payback (utility math)
- 10.8 years
Why this number
A kilowatt of panels in Worcester produces about 1,252 kWh a year, placing it 2 of 3 among the Massachusetts cities modeled here. The state spans Boston at 1,257 down to Springfield at 1,220, a 3.0% span, and Worcester sits inside it at a payback of about 8.3 years.
An 8 kW system in Worcester, priced out
| Metric | Estimate for Worcester | Massachusetts statewide |
|---|---|---|
| Production, unshaded 20° south | 1,252 kWh per kW/yr | 1,250 kWh per kW/yr |
| 8 kW output after a 10% roof derate | ~9,014 kWh/yr | ~9,000 kWh/yr |
| Average residential rate | 30.5¢/kWh (EIA) | 30.5¢/kWh |
| Installed cost, 8 kW | ~$23,280 at $2.91/watt | ~$23,280 |
| 2026 federal credit | $0 | $0 |
| Export rule | Full-retail net metering | Full-retail net metering |
| Export credit modeled | retail (30.5¢/kWh) | retail (30.5¢/kWh) |
| Annual value of that output | ~$2,748 | ~$2,744 |
| Rough payback (your utility) | 10.8 years | 8.3 years (state-average model) |
| 25-year net position | $58,865 | — |
Only the first two rows differ. Everything financial — rate, tariff, price per watt — is inherited from Massachusetts without change, which is the point: a city page that quietly used a different electricity rate from its state page would be guessing, not measuring.
Doing nothing is not free either. Twenty-five years of the electricity an 8 kW Worcester array would produce, with rates rising at 2.5% a year, comes to roughly $93,866.
Electricity isn’t only for panels — the heat pump vs. furnace cost calculator compares heating costs at Worcester’s own 30.5¢/kWh rate.
Run it with your own bill
Shared methodology · identical on every city page
- Production figures are unshaded, south-facing, 20° PVGIS values. A real roof — its own pitch, orientation, a tree or a chimney — typically produces 10–25% less; every payback here already carries a 10% real-roof derate.
- Paybacks include $150/yr of running costs and one $2,000 inverter replacement in year 14, which is why they run longer than paybacks quoted elsewhere.
- State export rules cover investor-owned, state-regulated utilities. Municipal utilities and rural electric cooperatives are exempt in most states and set their own terms.
- Installed cost is the state-level EnergySage market figure, not a city quote; a swing of 50¢/W moves payback by roughly a year and a half either way. Get three quotes before trusting any payback — including ours.
Worcester against the rest of Massachusetts
Across the 3 Massachusetts cities with their own modeled figures, production spans 3.0% — Springfield at 1,220 kWh per kW to Boston at 1,257. Every column except production is identical down this table: same 30.5¢/kWh retail rate, same export regime, same $2.91/W installed cost. The payback differences are caused by weather and nothing else.
| Location | kWh per kW per year | 8 kW output | Annual value | Payback |
|---|---|---|---|---|
| Boston | 1,257 | 9,050 kWh | $2,759 | 8.3 yrs |
| Worcester (this page) | 1,252 | 9,014 kWh | $2,748 | 8.3 yrs |
| Springfield | 1,220 | 8,784 kWh | $2,678 | 8.5 yrs |
| Massachusetts state average | 1,250 | 9,000 kWh | $2,744 | 8.3 yrs |
Against the state figure, Worcester runs 0.2% above Massachusetts’s 1,250 kWh per kW — a payback 2.5 years longer than the statewide 8.3-year estimate on the same hardware at the same price.
What sets Worcester apart
Effectively the same as Boston. Massachusetts has one of the narrowest intra-state spreads in the country.
Your utility, officially
Massachusetts’s average residential rate is 30.5¢/kWh, but the bill in Worcester comes from Massachusetts Electric Co at 23.07¢ — 24% below the state figure. These are the residential figures Worcester’s utility reported to the U.S. Energy Information Administration on Form EIA-861 for 2024 — computed as revenue ÷ sales from the official file, not estimated:
| Utility | EIA ID | Residential avg price | Residential customers | Net-metering (residential, self-reported) |
|---|---|---|---|---|
| Massachusetts Electric Co | 11804 | 23.07¢/kWh | 1,210,113 | 104158 customers / 685.648 MW |
How exports are treated matters as much as the headline price: Massachusetts Electric Co is modeled here under the state’s full-retail net metering rules, and that treatment is baked into every payback figure on this page.
Worcester’s utility is National Grid — filed with EIA as Massachusetts Electric Company, the investor-owned distribution business behind 1,210,113 residential customers across the middle and edges of the state — and its 2024 EIA-861 average of 23.07¢/kWh is one of the highest averages in our whole dataset outside California, New York City, and Hawaii. The comparison that stings: Eversource in Boston averages 19.92¢. Same state, same regulator, same statutes, and Worcester pays 3.15¢ more per kilowatt-hour than the bigger city an hour east. For once the expensive side of a comparison is the good news for solar, because every kilowatt-hour a Worcester roof produces displaces power at that higher price. It is a large part of why Worcester posts one of the fastest paybacks on this entire site.
The 23.07¢ is an average across tariffs, not your number. Massachusetts bills separate delivery from supply; National Grid’s Basic Service supply price resets periodically, and many Worcester-area households take supply through a municipal aggregation or competitive supplier instead. The utility’s current rate schedules are at nationalgridus.com — worth checking, because with a rate this high, small tariff differences move real dollars.
On exports: Massachusetts nominally credits home solar at full retail under 220 CMR 18.04, and National Grid’s net-metering pages for Massachusetts are at nationalgridus.com . But we could not resolve from the regulation itself whether a 60% multiplier in the rule applies to residential behind-the-meter systems, so treat the export credit as unconfirmed and get your credit class from National Grid in writing. The gap between full retail and 60% of it is the gap between an eight-year payback and a much longer one; it deserves a phone call.
Whatever the fine print says, Worcester’s utility hosts a remarkable fleet: 104,158 residential net-metering customers and 685.648 MW reported to EIA for 2024. That is more residential solar customers than any other Northeastern utility in our dataset — roughly one National Grid home in twelve — at a modest average of 6.6 kW per system. Small systems, high rates, massive uptake: the New England pattern in one row of data, and quiet evidence that thousands of households already did this math and liked the answer.
Source: EIA Form EIA-861, 2024 final release , accessed 2026-09-02. Average price is total residential revenue divided by total residential sales for the year — your own rate depends on your tariff and usage tier.
Worcester against the rest of Massachusetts
Same rate, same export rule, same installed price per watt — only the sunshine changes:
| City | kWh per kW | Payback |
|---|---|---|
| Boston | 1,257 | 8.3 years |
| Worcester | 1,252 | 8.3 years |
| Springfield | 1,220 | 8.5 years |
A 3.0% production span across one state is the reason a single statewide number is only ever a starting point.
What Massachusetts pays Worcester for exported power
Massachusetts credits exported power at the retail rate under 220 CMR 18.04 , so a kilowatt-hour a Worcester array sends to the grid is worth the same as one you buy. That is the best case for solar economics and it is why the payback above is what it is.
It is also the assumption most likely to change. Twenty-two states have already moved to net billing. If Massachusetts did the same on typical terms, this system would take about 14.9 years instead of 10.8 — 4.1 years’ difference from a policy change, with no change to the hardware and none to Worcester’s weather.
Whether the 60% multiplier in 220 CMR 18.04 applies to residential behind-the-meter systems could not be resolved. Treat as unknown and confirm with your utility.
Sources and method
- Production: modeled with PVGIS v5.2 PVcalc (European Commission JRC) using the PVGIS-NSRDB radiation database — the same NREL satellite dataset PVWatts draws on for the Americas. Assumptions: 4 kWp, standard c-Si, 14% system loss, roof mounting, 20-degree tilt, due south, horizon shading on. The 1,252 kWh per kW figure for Worcester is a modeled location point, not an interpolation from the Massachusetts average. PVGIS is free to use with JRC attribution requested; the underlying NSRDB is public domain (NREL/DOE).
- Real-roof derate: a separate 10% deduction for azimuth, pitch and shading, applied in the shared model rather than folded into the production data — so you can adjust it if your roof is genuinely unobstructed.
- Electricity rate: U.S. Energy Information Administration, average price by state . This is Massachusetts’s residential average; EIA does not publish a Worcester figure, so the state rate is used and labeled as such.
- Export rules: 220 CMR 18.04 , from our Massachusetts state page and the shared export-rules dataset behind it.
- State average rate: EIA Table 5.6.A, July 2026 data (released Sep 2026), used for every state-average comparison on this page.
- Payback model: shared with the solar savings calculator and the state pages — 2.5%/yr utility inflation, 0.5%/yr degradation, $150/yr running costs, one $2,000 inverter replacement in year 14, federal credit $0. The rest of the toolset — battery, sizing, financing — is under all calculators .
- Incentives: DSIRE . City and utility programs change more often than state ones — check yours directly.
Electricity rate, export regime, production figure and installed cost on this page were last verified on 30 August 2026. Export credits reset on annual tariff cycles and incentive budgets run out mid-year, so treat every figure as a snapshot at that date and confirm current terms before acting. Nothing here is tax or financial advice.
Frequently asked questions
How much do solar panels cost in Worcester in 2026?
About $23,280 for a typical 8 kW system at $2.91 per watt, before any incentive. With the federal credit at $0 in 2026 that is close to your net cost. Note that the price per watt is a Massachusetts market average — there is no reliable city-level cost data, so treat it as a starting point and get three quotes.
What is the solar payback in Worcester?
Roughly 10.8 years on this model, using Worcester’s own production figure of 1,252 kWh per kW and its own utility tariff (23.07¢/kWh) with each utility’s real export treatment. That includes $150 a year of running costs and one inverter replacement, which many published paybacks leave out.
Is Worcester better or worse for solar than the rest of Massachusetts?
Against the state figure, Worcester runs 0.2% above Massachusetts’s 1,250 kWh per kW — a payback 2.5 years longer than the statewide 8.3-year estimate on the same hardware at the same price.
Is solar worth it in Worcester in 2026?
At 30.49¢/kWh and 1,252 kWh per kW, an 8 kW system in Worcester pays back in about 8.3 years on this model. Treat that as a starting point for reading real quotes rather than as a quote: your roof’s orientation, its shading and the price you are actually offered will move it more than your city does.
How we calculated this
Year-1 saving = production (kW × the city’s modeled kWh per kW) × the blended kWh value (retail rate for self-use, the state export rule for exports). Payback = net cost ÷ year-1 saving, with the federal credit at $0 for 2026 purchases and cost per watt from the state’s installed-price band. Production is modeled from PVGIS/NSRDB irradiance for the city.Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.
Compare with the rest of Massachusetts
- Solar panel cost in Massachusetts — The statewide picture: Massachusetts’s rate, incentives, export rules and the 1,250 kWh per kW average this page corrects.
- Solar panel cost in Boston — 1,257 kWh per kW and a 8.3-year payback — better than Worcester on identical hardware.
- Solar panel cost in Springfield — 1,220 kWh per kW and a 8.5-year payback — worse than Worcester on identical hardware.
- Solar panel cost in Rockford — 1,249 kWh per kW in Illinois — the closest production match to Worcester in our data.
- Solar panel cost in New York City — 1,255 kWh per kW in New York — the closest production match to Worcester in our data.
- All city solar figures — The 66 US cities with their own modeled production data, and the spreads between them.