Solar in Napa, CA
With PG&E's electricity at about 40.5¢ per kWh and 1,582 kWh of sun per kW, solar is worth it for a typical Napa home today: about a 10.3-year payback.
- Payback, typical home
- 10.3 yrsCalifornia: 10.9 yrs
- 25-year net
- $24,137after paying $10,700
- Sun
- 1,582kWh per kW per year
- Electricity
- 40.5¢125% above U.S. average
A typical Napa home, by the numbers
| Utility | PG&E |
|---|---|
| Electricity use | 405 kWh a month |
| Best-value system | 3 kW, about 7 panels, 4,747 kWh a year (98% of use) |
| Cost | $10,700 |
| First-year savings | $956 |
| Payback | 10.3 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 Napa
- Owner-occupied homes
- 59%
- Single-family detached
- 62%
- Median home value
- $856k
- Median year built
- 1974
- Population
- 78,239
- Solar installs, last 3 years*
- 1,860
- Roofs suitable for solar†
- 92%
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 23,717 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 Napa
Companies with the most installations in Napa's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Sunrun 402 installs
- Citadel Roofing And Solar 119 installs
- Green Stock Solar 109 installs
- Bright OPS 94 installs
- Ambrose Solar 86 installs
- Tesla Energy 82 installs
- V3 Electric 79 installs
- SunPower 55 installs
- Northern Pacific Power Systems 43 installs
- Better Earth Electric 38 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Napa
Is solar worth it in Napa, CA?
For a typical home in Napa, solar is worth it at 2026 prices: a 3 kW system costs about $10,700 after state incentives, saves about $956 in year one and pays back in about 10.3 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Napa?
About 1,582 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 5% less than the California average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Napa?
Most homes in Napa are served by PG&E, at about 40.5¢ per kWh on average.
How much do solar panels cost in Napa?
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
- Vallejo 10.3 yrs
- Fairfield 10.2 yrs
- Suisun City 10.2 yrs
- Benicia 10.2 yrs
- Petaluma 10.3 yrs
- Vacaville 10.2 yrs
- Hercules 10.3 yrs
- Novato 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.