Solar in Lewisville, TX
With Denton County Electric Cooperative's electricity at about 13.7¢ per kWh and 1,518 kWh of sun per kW, solar is a close call for a typical Lewisville home today: about a 15.7-year payback.
- Payback, typical home
- 15.7 yrsTexas: 14 yrs
- 25-year net
- $10,509after paying $13,370
- Sun
- 1,518kWh per kW per year
- Electricity
- 13.7¢24% below U.S. average
A typical Lewisville home, by the numbers
| Utility | Denton County Electric Cooperative |
|---|---|
| Electricity use | 1,192 kWh a month |
| Best-value system | 4.7 kW, about 11 panels, 7,136 kWh a year (50% of use) |
| Cost | $13,370 |
| First-year savings | $839 |
| Payback | 15.7 years |
| Exported power | No statewide net metering (Texas rule) |
Cash purchase, no federal credit, 2.9% yearly rate increases. Run it with your own numbers.
Homes in Lewisville
- Owner-occupied homes
- 46%
- Single-family detached
- 46%
- Median home value
- $379k
- Median year built
- 1997
- Population
- 131,080
- Roofs suitable for solar†
- 83%
Census ACS 2020–2024. †Share of 22,861 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Lewisville
Public installation records for Texas don't name installers, so we can't rank local companies here. Browse installers in Texas.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Lewisville
Is solar worth it in Lewisville, TX?
For a typical home in Lewisville, solar is a close call at 2026 prices: a 4.7 kW system costs about $13,370 after state incentives, saves about $839 in year one and pays back in about 15.7 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Lewisville?
About 1,518 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 Texas average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Lewisville?
Most homes in Lewisville are served by Denton County Electric Cooperative, at about 13.7¢ per kWh on average.
How much do solar panels cost in Lewisville?
A fair cash price is around $2.60 per watt before incentives, so about $13,370 for a 4.7 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- The Colony 15.9 yrs
- Carrollton 15.7 yrs
- Coppell 15.7 yrs
- Flower Mound 15.5 yrs
- Grapevine 15.4 yrs
- Farmers Branch 12.7 yrs
- Little Elm 15.7 yrs
- Frisco 15.7 yrs
- All of Texas
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.