Grass Valley, CA solar installation & market data
Updated May 11, 2026 By The SolarDNA Data Team
Grass Valley has 4,131 solar installations across 2 zip codes at a median installed cost of $4.36/W, installations up 3.0% over the trailing twelve months, and an installs-weighted Market Score of 48.
Active installations
4,131
Zip markets
2
Median cost
$4.36/W
12-mo growth
▲ 3.0%
Installers active
354
City Market Score
Great · installs-weighted across 2 zips
Best zip in Grass Valley scores higher than 88% of U.S. zip markets.
Versus California
How Grass Valley compares with the state
Installed cost
$0.10/W above
state median $4.26/W
Market score
48 vs 53
California scores 53
Share of state installs
0.18%
of 2.3M tracked statewide
Battery attach
14.7%
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: 282–344 installs (midpoint 313)
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
Grass Valley by year
308 installs in the trailing twelve months vs 299 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Grass Valley
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | CALIFORNIA SOLAR ELECTRIC SYSTEMS | 411 | 0 | 2 | $4.38 |
| 2 | CALIFORNIA SOLAR ELECTRIC | 308 | 19 | 2 | $4.84 |
| 3 | SUSTAINABLE ENERGY GROUP | 261 | 9 | 2 | $3.58 |
| 4 | SUNRUN | 243 | 28 | 2 | $4.25 |
| 5 | TESLA | 215 | 5 | 2 | $5.12 |
| 6 | V3 ELECTRIC | 149 | 33 | 2 | $4.42 |
| 7 | PLAN IT SOLAR | 147 | 0 | 2 | $6.29 |
| 8 | BYERS ENTERPRISES | 142 | 2 | 2 | $4.51 |
| 9 | DC SOLAR ELECTRIC | 138 | 0 | 2 | $3.53 |
| 10 | HOOKED ON SOLAR | 122 | 3 | 2 | $4.43 |
| 11 | BRIGHT OPS | 118 | 45 | 2 | $4.42 |
| 12 | SUNRIVER SOLAR | 98 | 14 | 2 | $3.46 |
| 13 | INFINITY ENERGY | 68 | 1 | 2 | $4.83 |
| 14 | SIERRA SOLAR SYSTEMS | 53 | 0 | 2 | $7.41 |
| 15 | FREEDOM FOREVER | 45 | 8 | 2 | $4.43 |
| 16 | PIONEER SOLAR SERVICES | 39 | 0 | 2 | $4.47 |
| 17 | CALIFORNIA GREEN ENERGY CONSTRUCTION | 33 | 4 | 2 | $3.46 |
| 18 | LIFETIME SOLAR | 32 | 0 | 2 | $4.93 |
| 19 | MAGIC SUN SOLAR | 31 | 2 | 2 | $3.46 |
| 20 | ALTERNATIVE POWER SYSTEMS | 30 | 0 | 2 | $6.52 |
| 21 | SOLAR SAVINGS DIRECT | 28 | 1 | 2 | $4.69 |
| 22 | NORTH VALLEY | 28 | 7 | 2 | $5.54 |
| 23 | SUNWORKS | 26 | 0 | 2 | $3.98 |
| 24 | ENERGY SAVING PROS | 26 | 0 | 2 | $4.31 |
| 25 | SEMPER SOLARIS | 25 | 3 | 2 | $6.04 |