Typical home: Worth it

Solar in Carpentersville, IL

With ComEd's electricity at about 19.3¢ per kWh and 1,338 kWh of sun per kW, solar is worth it for a typical Carpentersville home today: about a 12.5-year payback.

Payback, typical home
12.5 yrsIllinois: 13.5 yrs
25-year net
$24,473after paying $16,500
Sun
1,338kWh per kW per year
Electricity
19.3¢7% above U.S. average

A typical Carpentersville home, by the numbers

UtilityComEd
Electricity use622 kWh a month
Best-value system5 kW, about 12 panels, 6,688 kWh a year (90% of use)
Cost$18,000, or $16,500 after state incentives
First-year savings$1,228
Payback12.5 years
Exported power9¢/kWh (ComEd)

Cash purchase, no federal credit, 3.5% yearly rate increases. Run it with your own numbers.

Solar production per kW in Carpentersville

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

Show as a table
PeriodValue
Jan77
Feb84
Mar121
Apr127
May146
Jun140
Jul155
Aug141
Sep124
Oct92
Nov71
Dec62

Homes in Carpentersville

Owner-occupied homes
72%
Single-family detached
70%
Median home value
$234k
Median year built
1976
Population
37,346
Roofs suitable for solar†
99%

Census ACS 2020–2024. †Share of 747 buildings Google Project Sunroof rated technically suitable (2019 snapshot).

Installers working in Carpentersville

Public installation records for Illinois don't name installers, so we can't rank local companies here. Browse installers in Illinois.

Always verify the license and get at least three quotes. Compare quotes side by side.

Questions about solar in Carpentersville

Is solar worth it in Carpentersville, IL?

For a typical home in Carpentersville, solar is worth it at 2026 prices: a 5 kW system costs about $16,500 after state incentives, saves about $1,228 in year one and pays back in about 12.5 years. Enter your address for an estimate based on your roof and bill.

How much solar power does a system produce in Carpentersville?

About 1,338 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 0% less than the Illinois average. East- or west-facing roofs produce roughly 10–20% less.

Who is the electric utility in Carpentersville?

Most homes in Carpentersville are served by ComEd, at about 19.3¢ per kWh on average.

How much do solar panels cost in Carpentersville?

A fair cash price is around $3.40 per watt before incentives, so about $18,000 for a 5 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.