Solar in Southlake, TX
With Oncor's electricity at about 17.9¢ per kWh and 1,526 kWh of sun per kW, solar is worth it for a typical Southlake home today: about a 12.5-year payback.
- Payback, typical home
- 12.5 yrsTexas: 14 yrs
- 25-year net
- $16,900after paying $12,530
- Sun
- 1,526kWh per kW per year
- Electricity
- 17.9¢1% below U.S. average
A typical Southlake home, by the numbers
| Utility | Oncor |
|---|---|
| Electricity use | 1,106 kWh a month |
| Best-value system | 4.3 kW, about 10 panels, 6,561 kWh a year (49% of use) |
| Cost | $12,530 |
| First-year savings | $984 |
| Payback | 12.5 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 Southlake
- Owner-occupied homes
- 95%
- Single-family detached
- 94%
- Median home value
- $1.0M
- Median year built
- 1997
- Population
- 31,137
- Roofs suitable for solar†
- 74%
Census ACS 2020–2024. †Share of 7,958 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Southlake
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 Southlake
Is solar worth it in Southlake, TX?
For a typical home in Southlake, solar is worth it at 2026 prices: a 4.3 kW system costs about $12,530 after state incentives, saves about $984 in year one and pays back in about 12.5 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Southlake?
About 1,526 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 0% more than the Texas average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Southlake?
Most homes in Southlake are served by Oncor, at about 17.9¢ per kWh on average. Some areas are served by Denton County Electric Cooperative, Tri-County Electric Cooperative, Inc (TX), United Electric Cooperative Service.
How much do solar panels cost in Southlake?
A fair cash price is around $2.60 per watt before incentives, so about $12,530 for a 4.3 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Colleyville 12.4 yrs
- Grapevine 15.4 yrs
- Keller 15.4 yrs
- Flower Mound 15.5 yrs
- Bedford 12.5 yrs
- North Richland Hills 12.3 yrs
- Hurst 12.5 yrs
- Euless 12.4 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.