Solar in Plainfield, IL
With ComEd's electricity at about 19.3¢ per kWh and 1,336 kWh of sun per kW, solar is worth it for a typical Plainfield home today: about a 12.5-year payback.
- Payback, typical home
- 12.5 yrsIllinois: 13.5 yrs
- 25-year net
- $24,417after paying $16,500
- Sun
- 1,336kWh per kW per year
- Electricity
- 19.3¢7% above U.S. average
A typical Plainfield home, by the numbers
| Utility | ComEd |
|---|---|
| Electricity use | 622 kWh a month |
| Best-value system | 5 kW, about 12 panels, 6,679 kWh a year (89% of use) |
| Cost | $18,000, or $16,500 after state incentives |
| First-year savings | $1,227 |
| Payback | 12.5 years |
| Exported power | 9¢/kWh (ComEd) |
Cash purchase, no federal credit, 3.5% yearly rate increases. Run it with your own numbers.
Homes in Plainfield
- Owner-occupied homes
- 88%
- Single-family detached
- 80%
- Median home value
- $431k
- Median year built
- 2003
- Population
- 46,708
- Roofs suitable for solar†
- 96%
Census ACS 2020–2024. †Share of 11,892 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Plainfield
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 Plainfield
Is solar worth it in Plainfield, IL?
For a typical home in Plainfield, solar is worth it at 2026 prices: a 5 kW system costs about $16,500 after state incentives, saves about $1,227 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 Plainfield?
About 1,336 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 Plainfield?
Most homes in Plainfield are served by ComEd, at about 19.3¢ per kWh on average.
How much do solar panels cost in Plainfield?
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
- Oswego 12.5 yrs
- Romeoville 12.5 yrs
- Bolingbrook 12.5 yrs
- Joliet 12.4 yrs
- Naperville 12.5 yrs
- Aurora 12.4 yrs
- Lockport 12.6 yrs
- Woodridge 12.6 yrs
- All of Illinois
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.