Norwalk, CA solar installation & market data
Updated May 11, 2026 By The SolarDNA Data Team
Norwalk has 2,592 solar installations across 2 zip codes at a median installed cost of $4.76/W, installations down 7.9% over the trailing twelve months, and an installs-weighted Market Score of 44.
Active installations
2,592
Zip markets
2
Median cost
$4.76/W
12-mo growth
▼ 7.9%
Installers active
365
City Market Score
Good · installs-weighted across 2 zips
Best zip in Norwalk scores higher than 63% of U.S. zip markets.
Versus California
How Norwalk compares with the state
Installed cost
$0.49/W above
state median $4.26/W
Market score
44 vs 53
California scores 53
Share of state installs
0.11%
of 2.3M tracked statewide
Battery attach
24.0%
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: 211–257 installs (midpoint 234)
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
Norwalk by year
244 installs in the trailing twelve months vs 265 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Norwalk
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 368 | 45 | 1 | $4.29 |
| 2 | TESLA | 282 | 11 | 1 | $5.12 |
| 3 | BRIGHT OPS | 136 | 36 | 1 | $4.34 |
| 4 | FREEDOM FOREVER | 121 | 13 | 1 | $4.63 |
| 5 | SKYLINE SMART ENERGY | 85 | 9 | 1 | $5.72 |
| 6 | ESP CONTRACTING | 69 | 0 | 1 | $4.70 |
| 7 | TITANIUM SOLAR | 59 | 0 | 1 | $6.74 |
| 8 | SUNGEVITY | 49 | 0 | 1 | $3.71 |
| 9 | SUNPOWER | 49 | 0 | 1 | $5.81 |
| 10 | SUNERGY CONSTRUCTION | 48 | 0 | 1 | $3.76 |
| 11 | VERENGO | 44 | 0 | 1 | $4.09 |
| 12 | BETTER EARTH | 37 | 0 | 1 | $5.45 |
| 13 | SEMPER SOLARIS | 36 | 1 | 1 | $4.51 |
| 14 | LGCY POWER | 35 | 12 | 2 | $2.00 |
| 15 | SOUTH WEST BUILDERS | 33 | 12 | 1 | $6.73 |
| 16 | SWSS ELECTRIC | 32 | 0 | 1 | $1.48 |
| 17 | TITAN SOLAR | 31 | 0 | 1 | $5.42 |
| 18 | POWUR | 25 | 0 | 1 | $5.53 |
| 19 | SOLARMAX | 24 | 0 | 1 | $3.71 |
| 20 | ZERO ENERGY ASSOCIATES | 24 | 0 | 1 | $10.32 |
| 21 | COMPLETE SOLAR | 23 | 0 | 1 | $3.67 |
| 22 | CLEAN INITIATIVE | 21 | 0 | 1 | $4.53 |
| 23 | SUNTIME ENERGY | 20 | 0 | 1 | $4.70 |
| 24 | PGS SOLAR AND SMART HOMES | 20 | 0 | 1 | $4.40 |
| 25 | MOMENTUM SOLAR | 20 | 0 | 1 | $3.30 |