Exeter, CA solar installation & market data
Updated April 23, 2026 By The SolarDNA Data Team
Exeter has 1,554 solar installations across 1 zip code at a median installed cost of $4.19/W, installations down 3.6% over the trailing twelve months, and an installs-weighted Market Score of 46.
Active installations
1,554
Zip markets
1
Median cost
$4.19/W
12-mo growth
▼ 3.6%
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Exeter scores higher than 70% of U.S. zip markets.
Versus California
How Exeter compares with the state
Installed cost
$0.07/W below
state median $4.26/W
Market score
46 vs 53
California scores 53
Share of state installs
0.07%
of 2.3M tracked statewide
Battery attach
17.3%
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: 117–143 installs (midpoint 130)
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
Exeter by year
132 installs in the trailing twelve months vs 137 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Exeter
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 357 | 38 | 1 | $4.19 |
| 2 | TESLA | 114 | 1 | 1 | $5.12 |
| 3 | J P ELECTRIC SERVICE | 64 | 0 | 1 | $4.31 |
| 4 | TYLER JIM CONSTRUCTION AND SOLAR | 63 | 0 | 1 | $3.51 |
| 5 | BRIGHT OPS | 60 | 5 | 1 | $4.58 |
| 6 | FREEDOM FOREVER | 50 | 6 | 1 | $3.97 |
| 7 | SOLAR NEGOTIATORS | 35 | 5 | 1 | $3.77 |
| 8 | AIR SUN | 32 | 3 | 1 | $4.04 |
| 9 | SOLGEN CONSTRUCTION | 30 | 0 | 1 | $5.51 |
| 10 | ABUNDANT ENERGY CONSTRUCTION | 28 | 0 | 1 | $5.46 |
| 11 | ALTSYS SOLAR | 24 | 1 | 1 | $3.48 |
| 12 | QUALITY HOME SERVICES | 21 | 1 | 1 | $4.30 |
Zip markets
Zips in Exeter
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 93221 | 1,554 | $4.19 | 46 B |