Solar in Walnut, CA
With Southern California Edison (SCE)'s electricity at about 33.8¢ per kWh and 1,679 kWh of sun per kW, solar is worth it for a typical Walnut home today: about a 10.6-year payback.
- Payback, typical home
- 10.6 yrsCalifornia: 10.9 yrs
- 25-year net
- $22,836after paying $10,700
- Sun
- 1,679kWh per kW per year
- Electricity
- 33.8¢88% above U.S. average
A typical Walnut home, by the numbers
| Utility | Southern California Edison (SCE) |
|---|---|
| Electricity use | 468 kWh a month |
| Best-value system | 3 kW, about 7 panels, 5,037 kWh a year (90% of use) |
| Cost | $10,700 |
| First-year savings | $932 |
| Payback | 10.6 years |
| Exported power | 4.6¢/kWh (Southern California Edison (SCE)) |
Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.
Homes in Walnut
- Owner-occupied homes
- 84%
- Single-family detached
- 95%
- Median home value
- $1.0M
- Median year built
- 1982
- Population
- 27,611
- Solar installs, last 3 years*
- 908
- Roofs suitable for solar†
- 97%
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 9,026 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Walnut
Companies with the most installations in Walnut's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Sunrun 216 installs
- SunPower 116 installs
- Tesla Energy 101 installs
- Freedom Forever 39 installs
- Solarmax Renewable Energy Provider 26 installs
- Sun Bees Groups INC DBA True Power Solar 21 installs
- Bright Planet 13 installs
- Clean-power2n 13 installs
- SOLAR OPTIMUM DESIGN & ELECTRICAL 13 installs
- Infinity Energy 10 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Walnut
Is solar worth it in Walnut, CA?
For a typical home in Walnut, solar is worth it at 2026 prices: a 3 kW system costs about $10,700 after state incentives, saves about $932 in year one and pays back in about 10.6 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Walnut?
About 1,679 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 1% more than the California average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Walnut?
Most homes in Walnut are served by Southern California Edison (SCE), at about 33.8¢ per kWh on average.
How much do solar panels cost in Walnut?
A fair cash price is around $2.90 per watt before incentives, so about $10,700 for a 3 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Diamond Bar 10.6 yrs
- West Covina 10.6 yrs
- Covina 10.6 yrs
- Rowland Heights 10.6 yrs
- San Dimas 10.6 yrs
- La Puente 10.6 yrs
- Pomona 10.6 yrs
- Hacienda Heights 10.5 yrs
- All of California
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.