Solar in Derby, KS
With Evergy Kansas South's electricity at about 15.2¢ per kWh and 1,517 kWh of sun per kW, solar is a close call for a typical Derby home today: about a 14.8-year payback.
- Payback, typical home
- 14.8 yrsKansas: 15.2 yrs
- 25-year net
- $13,372after paying $17,270
- Sun
- 1,517kWh per kW per year
- Electricity
- 15.2¢16% below U.S. average
A typical Derby home, by the numbers
| Utility | Evergy Kansas South |
|---|---|
| Electricity use | 858 kWh a month |
| Best-value system | 5.4 kW, about 13 panels, 8,191 kWh a year (80% of use) |
| Cost | $17,270 |
| First-year savings | $1,226 |
| Payback | 14.8 years |
| Exported power | Reduced export credit (Kansas rule) |
Cash purchase, no federal credit, 1.6% yearly rate increases. Run it with your own numbers.
Homes in Derby
- Owner-occupied homes
- 69%
- Single-family detached
- 72%
- Median home value
- $237k
- Median year built
- 1991
- Population
- 26,062
- Roofs suitable for solar†
- 98%
Census ACS 2020–2024. †Share of 7,977 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Derby
Public installation records for Kansas don't name installers, so we can't rank local companies here. Browse installers in Kansas.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Derby
Is solar worth it in Derby, KS?
For a typical home in Derby, solar is a close call at 2026 prices: a 5.4 kW system costs about $17,270 after state incentives, saves about $1,226 in year one and pays back in about 14.8 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Derby?
About 1,517 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 3% more than the Kansas average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Derby?
Most homes in Derby are served by Evergy Kansas South, at about 15.2¢ per kWh on average.
How much do solar panels cost in Derby?
A fair cash price is around $3.05 per watt before incentives, so about $17,270 for a 5.4 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Wichita 14.7 yrs
- Hutchinson 14.7 yrs
- Salina 14.8 yrs
- Manhattan 15.2 yrs
- Topeka 15.1 yrs
- Lawrence 15.6 yrs
- Dodge City 16.7 yrs
- Olathe 15.5 yrs
- All of Kansas
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.