Colusa County, CA solar installation & market data
Updated April 24, 2026 By The SolarDNA Data Team
Colusa County has 2,661 solar installations across 7 zip codes at a median installed cost of $4.22/W, installations down 16.4% over the trailing twelve months, and an installs-weighted Market Score of 39.
Active installations
2,661
Zip markets
7
Median cost
$4.22/W
12-mo growth
▼ 16.4%
Installers active
263
County Market Score
Good · installs-weighted across 7 zips
Best zip in Colusa County scores higher than 48% of U.S. zip markets.
Versus California
How Colusa County compares with the state
Installed cost
$0.04/W below
state median $4.26/W
Market score
39 vs 53
California scores 53
Share of state installs
0.12%
of 2.3M tracked statewide
Battery attach
5.7%
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: 122–150 installs (midpoint 136)
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
Colusa County by year
148 installs in the trailing twelve months vs 177 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Colusa County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 409 | 44 | 7 | $4.47 |
| 2 | TESLA | 232 | 1 | 7 | $5.12 |
| 3 | NORTH STATE SOLAR | 171 | 0 | 6 | $3.76 |
| 4 | SUNWORKS | 131 | 1 | 7 | $2.97 |
| 5 | FREEDOM FOREVER | 125 | 10 | 6 | $3.85 |
| 6 | PREMIER SOLAR SOLUTIONS | 95 | 0 | 5 | $4.30 |
| 7 | NORTH STATE ENERGY SOLAR | 75 | 0 | 5 | $3.35 |
| 8 | WESTHAVEN POWER | 73 | 4 | 5 | $5.00 |
| 9 | CHICO ELECTRIC | 61 | 5 | 6 | $3.08 |
| 10 | WESTHAVEN SOLAR | 52 | 0 | 4 | $4.08 |
| 11 | BRIGHT OPS | 45 | 4 | 5 | $4.94 |
| 12 | ELITE SOLAR | 44 | 0 | 5 | $1.79 |
| 13 | CITADEL ROOFING AND SOLAR | 43 | 12 | 2 | $2.87 |
| 14 | INTITEK SYSTEMS | 41 | 0 | 1 | $7.29 |
| 15 | OHM SOLAR SOLUTIONS | 40 | 4 | 5 | $6.00 |
| 16 | ALTERNATIVE ENERGY SYSTEMS | 39 | 1 | 6 | $3.71 |
| 17 | INFINITY ENERGY | 31 | 0 | 5 | $4.64 |
| 18 | V3 ELECTRIC | 28 | 0 | 5 | $4.38 |
| 19 | NORTH VALLEY | 28 | 4 | 4 | $5.88 |
| 20 | SOLCIUS | 24 | 0 | 4 | $5.81 |
| 21 | ALL SOLAR CA | 23 | 0 | 5 | $5.52 |
| 22 | SUNCREST SOLAR | 23 | 0 | 4 | — |
| 23 | HOOKED ON SOLAR | 23 | 0 | 3 | $4.75 |
| 24 | COMPLETE SOLAR | 22 | 1 | 3 | $4.51 |
| 25 | GOLD RUSH ENERGY SOLUTIONS | 22 | 0 | 4 | $4.08 |