Solar in Denison, TX
With Grayson-Collin Electric Cooperative's electricity at about 17.7¢ per kWh and 1,511 kWh of sun per kW, solar is worth it for a typical Denison home today: about a 12.8-year payback.
- Payback, typical home
- 12.8 yrsTexas: 14 yrs
- 25-year net
- $16,649after paying $12,950
- Sun
- 1,511kWh per kW per year
- Electricity
- 17.7¢2% below U.S. average
A typical Denison home, by the numbers
| Utility | Grayson-Collin Electric Cooperative |
|---|---|
| Electricity use | 1,128 kWh a month |
| Best-value system | 4.5 kW, about 10 panels, 6,799 kWh a year (50% of use) |
| Cost | $12,950 |
| First-year savings | $997 |
| Payback | 12.8 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 Denison
- Owner-occupied homes
- 59%
- Single-family detached
- 75%
- Median home value
- $181k
- Median year built
- 1967
- Population
- 25,778
- Roofs suitable for solar†
- 81%
Census ACS 2020–2024. †Share of 8,432 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
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 Denison
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 Denison
Is solar worth it in Denison, TX?
For a typical home in Denison, solar is worth it at 2026 prices: a 4.5 kW system costs about $12,950 after state incentives, saves about $997 in year one and pays back in about 12.8 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Denison?
About 1,511 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 1% less than the Texas average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Denison?
Most homes in Denison are served by Grayson-Collin Electric Cooperative, at about 17.7¢ per kWh on average.
How much do solar panels cost in Denison?
A fair cash price is around $2.60 per watt before incentives, so about $12,950 for a 4.5 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Sherman 12.7 yrs
- Celina 15.7 yrs
- Prosper 15.6 yrs
- McKinney 15.7 yrs
- Princeton 12.6 yrs
- Little Elm 15.7 yrs
- Frisco 15.7 yrs
- Allen 15.8 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.