Solar in Katy, TX
With Entergy Texas's electricity at about 14.4¢ per kWh and 1,468 kWh of sun per kW, solar is worth it for a typical Katy home today: about a 11.9-year payback.
- Payback, typical home
- 11.9 yrsTexas: 14 yrs
- 25-year net
- $33,717after paying $22,610
- Sun
- 1,468kWh per kW per year
- Electricity
- 14.4¢20% below U.S. average
A typical Katy home, by the numbers
| Utility | Entergy Texas |
|---|---|
| Electricity use | 1,237 kWh a month |
| Best-value system | 9.1 kW, about 21 panels, 13,360 kWh a year (90% of use) |
| Cost | $22,610 |
| First-year savings | $1,874 |
| Payback | 11.9 years |
| Exported power | Avoided-cost export credit (Entergy Texas) |
Cash purchase, no federal credit, 2.9% yearly rate increases. Run it with your own numbers.
Homes in Katy
- Owner-occupied homes
- 81%
- Single-family detached
- 85%
- Median home value
- $402k
- Median year built
- 2003
- Population
- 25,184
- Roofs suitable for solar†
- 90%
Census ACS 2020–2024. †Share of 5,457 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Katy
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 Katy
Is solar worth it in Katy, TX?
For a typical home in Katy, solar is worth it at 2026 prices: a 9.1 kW system costs about $22,610 after state incentives, saves about $1,874 in year one and pays back in about 11.9 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Katy?
About 1,468 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 3% less than the Texas average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Katy?
Most homes in Katy are served by Entergy Texas, at about 14.4¢ per kWh on average. Some areas are served by CenterPoint Energy Houston, San Bernard Electric Cooperative.
How much do solar panels cost in Katy?
A fair cash price is around $2.60 per watt before incentives, so about $22,610 for a 9.1 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Fulshear 12.2 yrs
- Mission Bend 13.1 yrs
- Rosenberg 13.1 yrs
- Sugar Land 13.2 yrs
- Missouri City 13.1 yrs
- Houston 13.4 yrs
- The Woodlands 12.4 yrs
- Spring 12.3 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.