Larkspur, CA solar installation & market data
Updated May 11, 2026 By The SolarDNA Data Team
Larkspur has 661 solar installations across 1 zip code at a median installed cost of $4.97/W, recent growth not yet measurable, and an installs-weighted Market Score of 38.
Active installations
661
Zip markets
1
Median cost
$4.97/W
12-mo growth
—
Installers active
12
City Market Score
Fair · installs-weighted across 1 zips
Best zip in Larkspur scores higher than 27% of U.S. zip markets.
Versus California
How Larkspur compares with the state
Installed cost
$0.71/W above
state median $4.26/W
Market score
38 vs 53
California scores 53
Share of state installs
0.03%
of 2.3M tracked statewide
Battery attach
19.8%
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
Larkspur by year
47 installs in the trailing twelve months vs 36 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Larkspur
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 145 | 5 | 1 | $5.12 |
| 2 | SOLARCRAFT SERVICES | 45 | 8 | 1 | $5.30 |
| 3 | SUNRUN | 45 | 6 | 1 | $4.59 |
| 4 | SUN FIRST | 27 | 2 | 1 | $4.98 |
| 5 | NEXUS ENERGY SYSTEMS | 24 | 0 | 1 | $6.06 |
| 6 | SUNPOWER | 22 | 0 | 1 | $4.50 |
| 7 | PETERSENDEAN | 18 | 0 | 1 | $4.01 |
| 8 | SPG SOLAR | 16 | 0 | 1 | $7.47 |
| 9 | SEMPER SOLARIS | 14 | 1 | 1 | $5.61 |
| 10 | PAC SOLAR | 14 | 0 | 1 | $3.41 |
| 11 | BETTER EARTH | 13 | 0 | 1 | $4.96 |
| 12 | NORTHERN PACIFIC POWER | 13 | 0 | 1 | $4.69 |
Zip markets
Zips in Larkspur
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94939 | 661 | $4.97 | 38 D |