Solar in Kirkwood, MO
With Ameren Missouri's electricity at about 13.9¢ per kWh and 1,345 kWh of sun per kW, solar is not worth it for a typical Kirkwood home today: about a 16.7-year payback.
- Payback, typical home
- 16.7 yrsMissouri: 15.5 yrs
- 25-year net
- $9,813after paying $17,600
- Sun
- 1,345kWh per kW per year
- Electricity
- 13.9¢23% below U.S. average
A typical Kirkwood home, by the numbers
| Utility | Ameren Missouri |
|---|---|
| Electricity use | 1,032 kWh a month |
| Best-value system | 6 kW, about 14 panels, 8,067 kWh a year (65% of use) |
| Cost | $17,600 |
| First-year savings | $1,122 |
| Payback | 16.7 years |
| Exported power | 4.6¢/kWh (Ameren Missouri) |
Cash purchase, no federal credit, 1.7% yearly rate increases. Run it with your own numbers.
Homes in Kirkwood
- Owner-occupied homes
- 77%
- Single-family detached
- 75%
- Median home value
- $451k
- Median year built
- 1962
- Population
- 29,363
- Roofs suitable for solar†
- 94%
Census ACS 2020–2024. †Share of 10,241 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 Kirkwood
Public installation records for Missouri don't name installers, so we can't rank local companies here. Browse installers in Missouri.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Kirkwood
Is solar worth it in Kirkwood, MO?
For a typical home in Kirkwood, solar is not worth it at 2026 prices: a 6 kW system costs about $17,600 after state incentives, saves about $1,122 in year one and pays back in about 16.7 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Kirkwood?
About 1,345 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 5% less than the Missouri average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Kirkwood?
Most homes in Kirkwood are served by Ameren Missouri, at about 13.9¢ per kWh on average. Some areas are served by City of Kirkwood.
How much do solar panels cost in Kirkwood?
A fair cash price is around $2.85 per watt before incentives, so about $17,600 for a 6 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Ballwin 16.3 yrs
- University City 16.1 yrs
- Mehlville 15.9 yrs
- Maryland Heights 16.7 yrs
- Chesterfield 16.8 yrs
- St. Louis 15.8 yrs
- Oakville 15.8 yrs
- Wildwood 16.1 yrs
- All of Missouri
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.