Typical home: Worth it

Solar in Chelsea, MA

With National Grid Massachusetts's electricity at about 33.9¢ per kWh and 1,301 kWh of sun per kW, solar is worth it for a typical Chelsea home today: about a 7-year payback.

Payback, typical home
7 yrsMassachusetts: 7.6 yrs
25-year net
$66,747after paying $17,035
Sun
1,301kWh per kW per year
Electricity
33.9¢88% above U.S. average

A typical Chelsea home, by the numbers

UtilityNational Grid Massachusetts
Electricity use549 kWh a month
Best-value system5.1 kW, about 12 panels, 6,633 kWh a year (101% of use)
Cost$18,035, or $17,035 after state incentives
First-year savings$2,125
Payback7.0 years
Exported powerFull retail net metering (National Grid Massachusetts)

Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.

Solar production per kW in Chelsea

kWh per kW each month, south-facing at 20° tilt. PVWatts v8 with local typical-year weather.

Show as a table
PeriodValue
Jan80
Feb88
Mar128
Apr128
May126
Jun129
Jul141
Aug131
Sep121
Oct90
Nov70
Dec70

Homes in Chelsea

Owner-occupied homes
26%
Single-family detached
8%
Median home value
$494k
Median year built
1941
Population
39,908
Roofs suitable for solar†
88%

Census ACS 2020–2024. †Share of 3,702 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 Chelsea

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 Chelsea

Is solar worth it in Chelsea, MA?

For a typical home in Chelsea, solar is worth it at 2026 prices: a 5.1 kW system costs about $17,035 after state incentives, saves about $2,125 in year one and pays back in about 7 years. Enter your address for an estimate based on your roof and bill.

How much solar power does a system produce in Chelsea?

About 1,301 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 1% more than the Massachusetts average. East- or west-facing roofs produce roughly 10–20% less.

Who is the electric utility in Chelsea?

Most homes in Chelsea are served by National Grid Massachusetts, at about 33.9¢ per kWh on average. Some areas are served by Eversource Massachusetts.

How much do solar panels cost in Chelsea?

A fair cash price is around $3.35 per watt before incentives, so about $18,035 for a 5.1 kW system. There's no federal tax credit for homeowners who buy in 2026.

Nearby

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.