Willows, CA solar installation & market data
Updated March 18, 2026 By The SolarDNA Data Team
Willows has 1,005 solar installations across 1 zip code at a median installed cost of $4.16/W, recent growth not yet measurable, and an installs-weighted Market Score of 44.
Active installations
1,005
Zip markets
1
Median cost
$4.16/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Willows scores higher than 63% of U.S. zip markets.
Versus California
How Willows compares with the state
Installed cost
$0.10/W below
state median $4.26/W
Market score
44 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
4.7%
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
Growth & pricing
Willows by year
44 installs in the trailing twelve months vs 63 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Willows
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 153 | 12 | 1 | $4.55 |
| 2 | ALTERNATIVE ENERGY SYSTEMS | 82 | 1 | 1 | $3.95 |
| 3 | FREEDOM FOREVER | 60 | 4 | 1 | $3.79 |
| 4 | TESLA | 58 | 0 | 1 | $5.12 |
| 5 | OHM SOLAR SOLUTIONS | 39 | 3 | 1 | $5.98 |
| 6 | CHICO ELECTRIC | 36 | 1 | 1 | $3.40 |
| 7 | NORTH STATE SOLAR | 33 | 0 | 1 | $3.83 |
| 8 | REVOLVE SOLAR | 32 | 0 | 1 | $3.76 |
| 9 | NORTH STATE ENERGY SOLAR | 27 | 0 | 1 | $3.51 |
| 10 | PREMIER SOLAR SOLUTIONS | 27 | 0 | 1 | $4.24 |
| 11 | RANCHO ELECTRIC | 22 | 2 | 1 | $3.24 |
| 12 | BRIGHT OPS | 21 | 5 | 1 | $5.22 |
Zip markets
Zips in Willows
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 95988 | 1,005 | $4.16 | 44 C |