Challenge, CA solar installation & market data
Updated February 17, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Challenge has 8 solar installations across 1 zip code at a median installed cost of $2.98/W, recent growth not yet measurable, and an installs-weighted Market Score of 44.
Active installations
8
Zip markets
1
Median cost
$2.98/W
12-mo growth
—
Installers active
7
City Market Score
Good · installs-weighted across 1 zips
Best zip in Challenge scores higher than 65% of U.S. zip markets.
Versus California
How Challenge compares with the state
Installed cost
$1.28/W below
state median $4.26/W
Market score
44 vs 53
California scores 53
Share of state installs
0.00%
of 2.3M tracked statewide
Battery attach
12.5%
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
Challenge by year
1 installs in the trailing twelve months vs 1 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Challenge
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | WESTHAVEN SOLAR | 2 | 0 | 1 | $2.23 |
| 2 | N R G CLEAN POWER | 1 | 1 | 1 | $5.43 |
| 3 | APEX ELECTRIC | 1 | 0 | 1 | $2.75 |
| 4 | FREEDOM FOREVER | 1 | 0 | 1 | $3.01 |
| 5 | HOOKED ON SOLAR | 1 | 0 | 1 | $6.32 |
| 6 | PLAN IT SOLAR | 1 | 0 | 1 | $2.95 |
| 7 | URBAN DESIGN SOLAR | 1 | 0 | 1 | $2.89 |
Zip markets
Zips in Challenge
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 95925 | 8 | $2.98 | 44 C |