Solar in Quincy, IL
With Ameren Illinois's electricity at about 19.1¢ per kWh and 1,387 kWh of sun per kW, solar is worth it for a typical Quincy home today: about a 11.7-year payback.
- Payback, typical home
- 11.7 yrsIllinois: 13.5 yrs
- 25-year net
- $39,088after paying $23,260
- Sun
- 1,387kWh per kW per year
- Electricity
- 19.1¢6% above U.S. average
A typical Quincy home, by the numbers
| Utility | Ameren Illinois |
|---|---|
| Electricity use | 882 kWh a month |
| Best-value system | 7.6 kW, about 18 panels, 10,540 kWh a year (100% of use) |
| Cost | $25,540, or $23,260 after state incentives |
| First-year savings | $1,882 |
| Payback | 11.7 years |
| Exported power | 10¢/kWh (Ameren Illinois) |
Cash purchase, no federal credit, 3.5% yearly rate increases. Run it with your own numbers.
Homes in Quincy
- Owner-occupied homes
- 64%
- Single-family detached
- 70%
- Median home value
- $153k
- Median year built
- 1959
- Population
- 39,109
Census ACS 2020–2024.
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 Quincy
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 Quincy
Is solar worth it in Quincy, IL?
For a typical home in Quincy, solar is worth it at 2026 prices: a 7.6 kW system costs about $23,260 after state incentives, saves about $1,882 in year one and pays back in about 11.7 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Quincy?
About 1,387 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 4% more than the Illinois average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Quincy?
Most homes in Quincy are served by Ameren Illinois, at about 19.1¢ per kWh on average.
How much do solar panels cost in Quincy?
A fair cash price is around $3.40 per watt before incentives, so about $25,540 for a 7.6 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Galesburg 11.7 yrs
- Springfield 16.5 yrs
- Alton 11.6 yrs
- Pekin 11.7 yrs
- Granite City 11.7 yrs
- Edwardsville 11.7 yrs
- Peoria 11.9 yrs
- Rock Island 21.6 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.