Solar in Lexington, MA
With Eversource Massachusetts's electricity at about 32.4¢ per kWh and 1,276 kWh of sun per kW, solar is worth it for a typical Lexington home today: about a 7.3-year payback.
- Payback, typical home
- 7.3 yrsMassachusetts: 7.6 yrs
- 25-year net
- $62,817after paying $17,320
- Sun
- 1,276kWh per kW per year
- Electricity
- 32.4¢80% above U.S. average
A typical Lexington home, by the numbers
| Utility | Eversource Massachusetts |
|---|---|
| Electricity use | 548 kWh a month |
| Best-value system | 5.2 kW, about 12 panels, 6,637 kWh a year (101% of use) |
| Cost | $18,320, or $17,320 after state incentives |
| First-year savings | $2,040 |
| Payback | 7.3 years |
| Exported power | Full retail net metering (Massachusetts rule) |
Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.
Homes in Lexington
- Owner-occupied homes
- 80%
- Single-family detached
- 74%
- Median home value
- $1.2M
- Median year built
- 1965
- Population
- 34,295
- Roofs suitable for solar†
- 61%
Census ACS 2020–2024. †Share of 6,252 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Older housing stock. Many homes here were built before 1975. Have the roof and electrical panel checked before signing; a roof or panel upgrade can add thousands. Roof first?
Installers working in Lexington
Public installation records for Massachusetts don't name installers, so we can't rank local companies here. Browse installers in Massachusetts.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Lexington
Is solar worth it in Lexington, MA?
For a typical home in Lexington, solar is worth it at 2026 prices: a 5.2 kW system costs about $17,320 after state incentives, saves about $2,040 in year one and pays back in about 7.3 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Lexington?
About 1,276 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 1% less than the Massachusetts average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Lexington?
Most homes in Lexington are served by Eversource Massachusetts, at about 32.4¢ per kWh on average.
How much do solar panels cost in Lexington?
A fair cash price is around $3.35 per watt before incentives, so about $18,320 for a 5.2 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Arlington 7.2 yrs
- Waltham 7.2 yrs
- Belmont 7.2 yrs
- Burlington 7.2 yrs
- Woburn 7.2 yrs
- Watertown 7.6 yrs
- Medford 6.9 yrs
- Cambridge 7.1 yrs
- All of Massachusetts
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.