Redwood City, CA solar installation & market data
Updated May 6, 2026 By The SolarDNA Data Team
Redwood City has 5,536 solar installations across 4 zip codes at a median installed cost of $4.72/W, installations up 18.1% over the trailing twelve months, and an installs-weighted Market Score of 48.
Active installations
5,536
Zip markets
4
Median cost
$4.72/W
12-mo growth
▲ 18.1%
Installers active
457
City Market Score
Great · installs-weighted across 4 zips
Best zip in Redwood City scores higher than 96% of U.S. zip markets.
Versus California
How Redwood City compares with the state
Installed cost
$0.45/W above
state median $4.26/W
Market score
48 vs 53
California scores 53
Share of state installs
0.24%
of 2.3M tracked statewide
Battery attach
16.2%
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: 417–509 installs (midpoint 463)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
Redwood City by year
425 installs in the trailing twelve months vs 360 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Redwood City
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 1,053 | 31 | 4 | $5.10 |
| 2 | SUNRUN | 699 | 46 | 4 | $4.47 |
| 3 | SUNPOWER | 206 | 1 | 4 | $4.62 |
| 4 | CLEAN SOLAR | 201 | 10 | 4 | $4.41 |
| 5 | COBALT POWER SYSTEMS | 196 | 12 | 4 | $5.84 |
| 6 | SEMPER SOLARIS | 169 | 13 | 4 | $4.29 |
| 7 | ROCKIN ROOFERS | 129 | 16 | 4 | $4.55 |
| 8 | CITADEL ROOFING AND SOLAR | 109 | 11 | 4 | $2.87 |
| 9 | PETERSENDEAN | 95 | 0 | 4 | $3.96 |
| 10 | SOLAR TECHNOLOGIES | 71 | 5 | 4 | $4.80 |
| 11 | RGS ENERGY | 65 | 0 | 3 | $7.92 |
| 12 | BETTER EARTH | 63 | 0 | 4 | $4.71 |
| 13 | BAY AREA ENERGY SOLUTIONS | 63 | 6 | 3 | $4.53 |
| 14 | BRIGHT OPS | 62 | 48 | 4 | $5.46 |
| 15 | SOLAR OPTIMUM DESIGN ELECTRIC | 58 | 0 | 4 | $2.99 |
| 16 | YOUR ENERGY SOLUTIONS | 54 | 6 | 4 | $3.85 |
| 17 | SUNGEVITY | 54 | 0 | 4 | $3.74 |
| 18 | NRG CLEAN ENERGY | 52 | 0 | 4 | $3.27 |
| 19 | CINNAMON SOLAR | 52 | 0 | 4 | $5.25 |
| 20 | POCO SOLAR ENERGY | 44 | 2 | 3 | $4.75 |
| 21 | INFINIUM SOLAR | 44 | 21 | 2 | $5.66 |
| 22 | THE SOLAR COMPANY | 43 | 0 | 4 | $5.31 |
| 23 | AKEENA SOLAR | 42 | 0 | 3 | $7.98 |
| 24 | NEXUS ENERGY SYSTEMS | 39 | 3 | 4 | $4.42 |
| 25 | SUNWORK RENEWABLE ENERGY | 37 | 0 | 4 | $2.57 |