Danville, CA solar installation & market data
Updated May 1, 2026 By The SolarDNA Data Team
Danville has 6,451 solar installations across 2 zip codes at a median installed cost of $4.16/W, installations up 26.4% over the trailing twelve months, and an installs-weighted Market Score of 55.
Active installations
6,451
Zip markets
2
Median cost
$4.16/W
12-mo growth
▲ 26.4%
Installers active
430
City Market Score
Excellent · installs-weighted across 2 zips
Best zip in Danville scores higher than 99% of U.S. zip markets.
Versus California
How Danville compares with the state
Installed cost
$0.10/W below
state median $4.26/W
Market score
55 vs 53
California scores 53
Share of state installs
0.29%
of 2.3M tracked statewide
Battery attach
12.1%
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: 432–564 installs (midpoint 498)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±13% band. Not a forecast of permits or policy.
Growth & pricing
Danville by year
440 installs in the trailing twelve months vs 348 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Danville
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 1,344 | 73 | 2 | $5.02 |
| 2 | SUNRUN | 546 | 72 | 2 | $4.08 |
| 3 | SUNPOWER | 391 | 0 | 2 | $4.46 |
| 4 | SKY POWER SOLAR | 268 | 0 | 2 | $4.02 |
| 5 | YOUR ENERGY SOLUTIONS | 204 | 15 | 2 | $3.60 |
| 6 | WEST COAST SOLAR | 164 | 5 | 2 | $3.75 |
| 7 | DIABLO SOLAR SERVICES | 145 | 1 | 2 | $4.30 |
| 8 | SEMPER FIDELIS CONSTRUCTION | 131 | 2 | 2 | $3.89 |
| 9 | QUICK SYSTEMS | 130 | 0 | 2 | $3.75 |
| 10 | SOLAR TECHNOLOGIES | 122 | 15 | 2 | $4.55 |
| 11 | PETERSENDEAN | 118 | 0 | 2 | $3.74 |
| 12 | SEMPER SOLARIS | 118 | 7 | 2 | $4.36 |
| 13 | CORDA SOLAR | 116 | 13 | 2 | $3.83 |
| 14 | CITADEL ROOFING AND SOLAR | 110 | 23 | 2 | $2.93 |
| 15 | SUNGEVITY | 94 | 0 | 2 | $3.65 |
| 16 | COMPLETE SOLAR | 90 | 1 | 2 | $4.04 |
| 17 | NORTHSTAR SOLAR | 78 | 9 | 2 | $3.73 |
| 18 | SYNERGY POWER CA | 61 | 0 | 2 | $3.65 |
| 19 | KOTA CONSTRUCTION | 59 | 0 | 2 | $4.40 |
| 20 | BETTER EARTH | 55 | 0 | 2 | $4.45 |
| 21 | HOOKED ON SOLAR | 54 | 2 | 2 | $4.36 |
| 22 | SOLAR OPTIMUM DESIGN ELECTRIC | 51 | 0 | 2 | $2.86 |
| 23 | THE SOLAR COMPANY | 50 | 0 | 2 | $5.77 |
| 24 | SOL R US ELECTRIC ENGINEERING | 46 | 0 | 2 | $3.08 |
| 25 | FREEDOM FOREVER | 42 | 6 | 2 | $4.48 |