San Mateo, CA solar installation & market data
Updated April 28, 2026 By The SolarDNA Data Team
San Mateo has 5,008 solar installations across 4 zip codes at a median installed cost of $4.51/W, installations up 53.4% over the trailing twelve months, and an installs-weighted Market Score of 55.
Active installations
5,008
Zip markets
4
Median cost
$4.51/W
12-mo growth
▲ 53.4%
Installers active
412
City Market Score
Excellent · installs-weighted across 4 zips
Best zip in San Mateo scores higher than 99% of U.S. zip markets.
Versus California
How San Mateo compares with the state
Installed cost
$0.24/W above
state median $4.26/W
Market score
55 vs 53
California scores 53
Share of state installs
0.22%
of 2.3M tracked statewide
Battery attach
13.4%
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
Next-12-month outlook: 435–589 installs (midpoint 512)
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
San Mateo by year
445 installs in the trailing twelve months vs 290 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in San Mateo
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 1,056 | 37 | 4 | $5.06 |
| 2 | SUNRUN | 601 | 78 | 4 | $4.31 |
| 3 | SUNPOWER | 197 | 4 | 4 | $4.60 |
| 4 | LEONARD ROOFING | 188 | 0 | 1 | $3.80 |
| 5 | SEMPER SOLARIS | 127 | 13 | 4 | $4.24 |
| 6 | ROCKIN ROOFERS | 116 | 24 | 4 | $4.58 |
| 7 | PETERSENDEAN | 106 | 0 | 4 | $3.96 |
| 8 | CLEAN SOLAR | 90 | 8 | 4 | $4.80 |
| 9 | COBALT POWER SYSTEMS | 73 | 5 | 4 | $5.45 |
| 10 | BETTER EARTH | 71 | 0 | 4 | $4.74 |
| 11 | YOUR ENERGY SOLUTIONS | 63 | 12 | 4 | $4.05 |
| 12 | BRIGHT OPS | 59 | 52 | 4 | $6.14 |
| 13 | ALL BAY SOLAR CONSTRUCTION | 58 | 6 | 4 | $4.47 |
| 14 | SOLAR OPTIMUM DESIGN ELECTRIC | 57 | 0 | 4 | $3.05 |
| 15 | FREEDOM FOREVER | 54 | 15 | 4 | $5.00 |
| 16 | SOLAR TECHNOLOGIES | 52 | 2 | 4 | $4.41 |
| 17 | NRG CLEAN ENERGY | 46 | 0 | 4 | $3.88 |
| 18 | SUNGEVITY | 46 | 0 | 4 | $4.17 |
| 19 | WEST COAST SOLAR | 44 | 1 | 3 | $3.63 |
| 20 | SUN FIRST | 42 | 0 | 3 | $4.51 |
| 21 | KOTA CONSTRUCTION | 40 | 1 | 4 | $5.32 |
| 22 | THE SOLAR COMPANY | 40 | 0 | 4 | $5.76 |
| 23 | NEXUS ENERGY SYSTEMS | 39 | 2 | 4 | $4.93 |
| 24 | HIGH DEFINITION SOLAR | 36 | 0 | 4 | $7.50 |
| 25 | LUMINALT ENERGY | 35 | 0 | 4 | $6.49 |