Solar in Key West, FL
With Utility Board of the City of Key West, F's electricity at about 15.3¢ per kWh and 1,673 kWh of sun per kW, solar is worth it for a typical Key West home today: about a 9.7-year payback.
- Payback, typical home
- 9.7 yrsFlorida: 10.5 yrs
- 25-year net
- $46,402after paying $21,635
- Sun
- 1,673kWh per kW per year
- Electricity
- 15.3¢15% below U.S. average
A typical Key West home, by the numbers
| Utility | Utility Board of the City of Key West, F |
|---|---|
| Electricity use | 1,182 kWh a month |
| Best-value system | 9.3 kW, about 22 panels, 15,556 kWh a year (110% of use) |
| Cost | $21,635 |
| First-year savings | $2,204 |
| Payback | 9.7 years |
| Exported power | Full retail net metering (Florida rule) |
Cash purchase, no federal credit, 2.8% yearly rate increases. Run it with your own numbers.
Homes in Key West
- Owner-occupied homes
- 49%
- Single-family detached
- 42%
- Median home value
- $852k
- Median year built
- 1968
- Population
- 25,720
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 Key West
Public installation records for Florida don't name installers, so we can't rank local companies here. Browse installers in Florida.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Key West
Is solar worth it in Key West, FL?
For a typical home in Key West, solar is worth it at 2026 prices: a 9.3 kW system costs about $21,635 after state incentives, saves about $2,204 in year one and pays back in about 9.7 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Key West?
About 1,673 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 8% more than the Florida average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Key West?
Most homes in Key West are served by Utility Board of the City of Key West, F, at about 15.3¢ per kWh on average. Some areas are served by Florida Keys El Cooperative Association.
How much do solar panels cost in Key West?
A fair cash price is around $2.45 per watt before incentives, so about $21,635 for a 9.3 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Homestead 10.8 yrs
- Leisure City 10.8 yrs
- Princeton 10.7 yrs
- Richmond West 10.7 yrs
- Golden Gate 10.8 yrs
- South Miami Heights 10.6 yrs
- The Hammocks 10.9 yrs
- Cutler Bay 10.6 yrs
- All of Florida
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.