Cotati, CA solar installation & market data
Updated April 17, 2026 By The SolarDNA Data Team
Cotati has 545 solar installations across 1 zip code at a median installed cost of $4.64/W, recent growth not yet measurable, and an installs-weighted Market Score of 39.
Active installations
545
Zip markets
1
Median cost
$4.64/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Cotati scores higher than 32% of U.S. zip markets.
Versus California
How Cotati compares with the state
Installed cost
$0.38/W above
state median $4.26/W
Market score
39 vs 53
California scores 53
Share of state installs
0.02%
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
Growth & pricing
Cotati by year
38 installs in the trailing twelve months vs 32 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Cotati
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 134 | 13 | 1 | $4.64 |
| 2 | TESLA | 53 | 0 | 1 | $5.12 |
| 3 | NORTHERN PACIFIC POWER | 18 | 0 | 1 | $4.00 |
| 4 | WESTCOAST SOLAR ENERGY | 15 | 0 | 1 | $5.70 |
| 5 | ROCKIN ROOFERS | 14 | 0 | 1 | $4.52 |
| 6 | FREEDOM FOREVER | 12 | 1 | 1 | $5.51 |
| 7 | CITADEL ROOFING AND SOLAR | 11 | 1 | 1 | $2.85 |
| 8 | SOLARCRAFT SERVICES | 10 | 0 | 1 | $5.21 |
| 9 | BRIGHT OPS | 9 | 6 | 1 | $4.75 |
| 10 | BETTER EARTH | 9 | 0 | 1 | $3.64 |
| 11 | SUNPOWER | 9 | 0 | 1 | $5.35 |
| 12 | SYNERGY SOLAR | 8 | 0 | 1 | $4.14 |
Zip markets
Zips in Cotati
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94931 | 545 | $4.64 | 39 C |