Typical home: Worth it

Solar in San Francisco, CA

With local electricity at about 28.5¢ per kWh and 1,430 kWh of sun per kW, solar is worth it for a typical San Francisco home today: about a 9.3-year payback.

Payback, typical home
9.3 yrsCalifornia: 10.9 yrs
25-year net
$39,153after paying $14,540
Sun
1,430kWh per kW per year
Electricity
28.5¢59% above U.S. average

A typical San Francisco home, by the numbers

UtilityVaries
Electricity use1,089 kWh a month
Best-value system4.6 kW, about 11 panels, 6,579 kWh a year (50% of use)
Cost$14,540
First-year savings$1,450
Payback9.3 years
Exported powerNet billing (reduced export credit) (California rule)

Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.

Solar production per kW in San Francisco

kWh per kW each month, south-facing at 20° tilt. PVWatts v8 with local typical-year weather.

Show as a table
PeriodValue
Jan85
Feb95
Mar130
Apr147
May164
Jun153
Jul126
Aug129
Sep121
Oct116
Nov90
Dec76

Homes in San Francisco

Owner-occupied homes
38%
Single-family detached
18%
Median home value
$1.4M
Median year built
1946
Population
830,235
Solar installs, last 3 years*
2,715
Roofs suitable for solar†
84%

Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 129,075 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 San Francisco

Companies with the most installations in San Francisco's ZIP codes over the last 3 years, from public records. We don't take payment for placement.

  1. Luminalt Energy 483 installs
  2. Sutro Power 181 installs
  3. SunPower 172 installs
  4. All Bay Solar Construction 164 installs
  5. Tesla Energy 109 installs
  6. Rockin Roofers 104 installs
  7. N R G Clean Power 98 installs
  8. Occidental Power Solar & Cogen 89 installs
  9. Solarunion 80 installs
  10. Albion Power Company 66 installs

Always verify the license and get at least three quotes. Compare quotes side by side.

Questions about solar in San Francisco

Is solar worth it in San Francisco, CA?

For a typical home in San Francisco, solar is worth it at 2026 prices: a 4.6 kW system costs about $14,540 after state incentives, saves about $1,450 in year one and pays back in about 9.3 years. Enter your address for an estimate based on your roof and bill.

How much solar power does a system produce in San Francisco?

About 1,430 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 14% less than the California average. East- or west-facing roofs produce roughly 10–20% less.

Who is the electric utility in San Francisco?

Several utilities may serve San Francisco. Check your bill.

How much do solar panels cost in San Francisco?

A fair cash price is around $2.90 per watt before incentives, so about $14,540 for a 4.6 kW system. There's no federal tax credit for homeowners who buy in 2026.

Nearby

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.