San Francisco, CA 94121 solar market data
Updated May 18, 2026 By The SolarDNA Data Team
San Francisco 94121 has 625 solar installations at a median installed cost of $5.12/W, recent growth not yet measurable, and a Market Score of 37 — higher than 19% of U.S. zip markets.
Versus California
How 94121 compares with the state
Installed cost
$0.86/W above
state median $4.26/W
Market score
37 vs 53
California scores 53
Share of state installs
0.03%
of 2.3M tracked statewide
Battery attach
11.4%
state 12.7%
Statewide momentum
▲ 1.1%
residential solar added in California, 12 months through Jul 2026
Statewide market
2.3M systems
30.9% of homes · utility-reported through Jul 2026
Growth & pricing
94121 by year
45 installs in the trailing twelve months vs 30 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94121
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | LUMINALT ENERGY | 86 | 0 | 5.17 | $6.31 |
| 2 | TESLA | 85 | 5 | 4.46 | $5.12 |
| 3 | SKYTECH SOLAR | 37 | 0 | 2.49 | $7.67 |
| 4 | OCCIDENTAL POWER | 36 | 0 | 4.42 | $6.45 |
| 5 | SOLARUNION | 20 | 0 | 4.65 | $4.65 |
| 6 | ALL BAY SOLAR CONSTRUCTION | 19 | 3 | 6.04 | $4.49 |
| 7 | SUTRO POWER | 18 | 2 | 5.25 | $3.80 |
| 8 | SUNGEVITY | 18 | 0 | 3.17 | $5.96 |
| 9 | SUNPOWER | 18 | 0 | 5.89 | $5.03 |
| 10 | LUMINALT ENERGY CORPORATION | 15 | 10 | 6.37 | $7.95 |
| 11 | ALBION POWER COMPANY | 14 | 1 | 7.13 | $4.79 |
| 12 | HIGH DEFINITION SOLAR | 14 | 0 | 2.88 | $6.64 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94122 San Francisco | 2.2 km | 998 | $5.21 | 39 |
| 94118 San Francisco | 2.5 km | 574 | $5.79 | 34 |
| 94116 San Francisco | 3.8 km | 1,048 | $5.12 | 40 |
| 94117 San Francisco | 4.3 km | 665 | $5.87 | 34 |
| 94115 San Francisco | 4.8 km | 382 | $6.09 | 32 |
| 94123 San Francisco | 5.4 km | 298 | $6.28 | 30 |
Same city
Other zips in San Francisco
Equipment
What gets installed in 94121
Share of systems with a recorded brand
Modules
SUNPOWER24.3%
QCELLS NORTH AMERICA10.3%
CSI SOLAR8.5%
SHARP5.5%
REC SOLAR5.2%
Inverters
ENPHASE ENERGY25.6%
SUNPOWER20.4%
SOLAREDGE17.7%
SMA AMERICA8.5%
TESLA7.4%
Frequently asked
Quick answers about 94121
How many solar installations are there in 94121?
SolarDNA counts 625 active solar installations in San Francisco 94121, 618 of them residential, with data through May 18, 2026.
How much does solar cost in 94121?
The median residential system in 94121 cost $5.12 per watt over the trailing twelve months, $0.86/W above the California median.
Is solar growing in 94121?
Recent growth cannot be measured yet for 94121: too few recent installs (data runs through May 18, 2026).
Who installs solar in 94121?
LUMINALT ENERGY, TESLA, SKYTECH SOLAR lead the 118 installers with systems in 94121. The full comp set is above.
Is 94121 a good market for solar sales?
94121 scores 37 out of 100 (Fair, higher than 19% of U.S. zip markets).