Solar in Vacaville, CA
With PG&E's electricity at about 40.5¢ per kWh and 1,642 kWh of sun per kW, solar is worth it for a typical Vacaville home today: about a 10.2-year payback.
- Payback, typical home
- 10.2 yrsCalifornia: 10.9 yrs
- 25-year net
- $24,530after paying $10,700
- Sun
- 1,642kWh per kW per year
- Electricity
- 40.5¢125% above U.S. average
A typical Vacaville home, by the numbers
| Utility | PG&E |
|---|---|
| Electricity use | 405 kWh a month |
| Best-value system | 3 kW, about 7 panels, 4,927 kWh a year (101% of use) |
| Cost | $10,700 |
| First-year savings | $968 |
| Payback | 10.2 years |
| Exported power | 3.9¢/kWh (PG&E) |
Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.
Homes in Vacaville
- Owner-occupied homes
- 68%
- Single-family detached
- 72%
- Median home value
- $621k
- Median year built
- 1985
- Population
- 102,596
- Solar installs, last 3 years*
- 3,697
- Roofs suitable for solar†
- 96%
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 27,217 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Vacaville
Companies with the most installations in Vacaville's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Sunrun 958 installs
- Ambrose Solar 510 installs
- SunPower 422 installs
- Citadel Roofing And Solar 240 installs
- North Valley 112 installs
- Freedom Forever 99 installs
- Bright OPS 95 installs
- Tesla Energy 82 installs
- V3 Electric 81 installs
- Better Earth Electric 72 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Vacaville
Is solar worth it in Vacaville, CA?
For a typical home in Vacaville, solar is worth it at 2026 prices: a 3 kW system costs about $10,700 after state incentives, saves about $968 in year one and pays back in about 10.2 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Vacaville?
About 1,642 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 California average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Vacaville?
Most homes in Vacaville are served by PG&E, at about 40.5¢ per kWh on average.
How much do solar panels cost in Vacaville?
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
- Fairfield 10.2 yrs
- Suisun City 10.2 yrs
- Napa 10.3 yrs
- Davis 10.2 yrs
- Benicia 10.2 yrs
- Vallejo 10.3 yrs
- Pittsburg 10.1 yrs
- Woodland 10.2 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.