Trinity County, CA solar installation & market data
Updated May 11, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Trinity County has 38 solar installations across 4 zip codes at a median installed cost of $4.94/W, recent growth not yet measurable, and an installs-weighted Market Score of 35.
Active installations
38
Zip markets
4
Median cost
$4.94/W
12-mo growth
—
Installers active
20
County Market Score
Fair · installs-weighted across 4 zips
Best zip in Trinity County scores higher than 37% of U.S. zip markets.
Versus California
How Trinity County compares with the state
Installed cost
$0.68/W above
state median $4.26/W
Market score
35 vs 53
California scores 53
Share of state installs
0.00%
of 2.3M tracked statewide
Battery attach
7.9%
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
Trinity County by year
4 installs in the trailing twelve months vs 2 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Trinity County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | WESTHAVEN SOLAR | 7 | 0 | 2 | $6.65 |
| 2 | SOLAR PROJECTS UNLIMITED | 5 | 0 | 1 | $2.96 |
| 3 | ADDY ELECTRIC | 3 | 0 | 2 | $5.47 |
| 4 | TOWNSEND CONSTRUCTION | 2 | 0 | 1 | $6.62 |
| 5 | MICHAEL DEHORITY | 2 | 0 | 2 | $3.17 |
| 6 | GREENWIRED | 2 | 0 | 2 | $7.94 |
| 7 | HUFFT SOLAR | 1 | 0 | 1 | $6.23 |
| 8 | SEL CONSTRUCTION | 1 | 0 | 1 | — |
| 9 | MODERN UTILITY SERVICES | 1 | 0 | 1 | $4.97 |
| 10 | FREEDOM FOREVER | 1 | 0 | 1 | $5.67 |
| 11 | ELECTRICIAN INCORPORATED THE | 1 | 0 | 1 | $4.12 |
| 12 | HAVENELECTRIC | 1 | 0 | 1 | — |
| 13 | ORIGIN SOLAR USA | 1 | 1 | 1 | — |
| 14 | SOLARHAVEN | 1 | 0 | 1 | — |
| 15 | SCURFIELD SOLAR | 1 | 0 | 1 | $4.80 |
| 16 | PATTERSON | 1 | 0 | 1 | — |
| 17 | ABUNDANCE BUILDERS | 1 | 0 | 1 | $7.62 |
| 18 | WESTHAVEN POWER | 1 | 0 | 1 | $1.63 |
| 19 | ELECTRICIAN | 1 | 0 | 1 | — |
| 20 | US ENERGY ADVISERS | 1 | 0 | 1 | $5.17 |