San Mateo, CA 94401 solar market data
Updated April 23, 2026 By The SolarDNA Data Team
San Mateo 94401 has 695 solar installations at a median installed cost of $4.69/W, installations up 95.0% over the trailing twelve months, and a Market Score of 52 — higher than 95% of U.S. zip markets.
Zip Market Score
Excellent · higher than 95% of zips
Versus California
How 94401 compares with the state
Installed cost
$0.43/W above
state median $4.26/W
Market score
52 vs 53
California scores 53
Share of state installs
0.03%
of 2.3M tracked statewide
Battery attach
12.2%
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
Next-12-month outlook: 77–103 installs (midpoint 90)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
94401 by year
78 installs in the trailing twelve months vs 40 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94401
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 174 | 4 | 4.27 | $4.77 |
| 2 | SUNRUN | 89 | 7 | 5.62 | $4.33 |
| 3 | PETERSENDEAN | 21 | 0 | 4.69 | $4.21 |
| 4 | BRIGHT OPS | 20 | 17 | 4.53 | $5.78 |
| 5 | SEMPER SOLARIS | 18 | 2 | 5.16 | $4.08 |
| 6 | SUNPOWER | 18 | 0 | 6.35 | $4.37 |
| 7 | FREEDOM FOREVER | 15 | 7 | 6.25 | $4.57 |
| 8 | NEXUS ENERGY SYSTEMS | 13 | 0 | 5.6 | $5.49 |
| 9 | ROCKIN ROOFERS | 10 | 3 | 6.64 | $4.33 |
| 10 | BETTER EARTH | 9 | 0 | 5.72 | $5.08 |
| 11 | CLEAN SOLAR | 9 | 0 | 4.04 | $6.24 |
| 12 | COMPLETE SOLAR | 8 | 0 | 5.84 | $4.01 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94402 San Mateo | 2.6 km | 1,285 | $4.79 | 53 |
| 94010 Burlingame | 4.0 km | 2,594 | $4.66 | 52 |
| 94403 San Mateo | 4.3 km | 1,992 | $4.29 | 61 |
| 94404 San Mateo | 5.1 km | 1,036 | $4.46 | 49 |
| 94002 Belmont | 6.8 km | 1,668 | $4.45 | 44 |
| 94030 Millbrae | 7.6 km | 880 | $4.26 | 48 |
Same city
Other zips in San Mateo
Equipment
What gets installed in 94401
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA16.7%
CSI SOLAR8.8%
LG ELECTRONICS7.0%
JA SOLAR6.8%
SUNPOWER6.7%
Inverters
SOLAREDGE31.2%
ENPHASE ENERGY28.3%
TESLA8.0%
DELTA ELECTRONICS7.9%
SUNPOWER5.3%
Frequently asked
Quick answers about 94401
How many solar installations are there in 94401?
SolarDNA counts 695 active solar installations in San Mateo 94401, 677 of them residential, with data through April 23, 2026.
How much does solar cost in 94401?
The median residential system in 94401 cost $4.69 per watt over the trailing twelve months, $0.43/W above the California median.
Is solar growing in 94401?
Installations in 94401 are up 95.0%: 78 in the trailing twelve months versus 40 before.
Who installs solar in 94401?
TESLA, SUNRUN, PETERSENDEAN lead the 155 installers with systems in 94401. The full comp set is above.
Is 94401 a good market for solar sales?
94401 scores 52 out of 100 (Excellent, higher than 95% of U.S. zip markets).