La Mesa, CA solar installation & market data
Updated April 21, 2026 By The SolarDNA Data Team
La Mesa has 8,128 solar installations across 2 zip codes at a median installed cost of $4.20/W, installations down 12.3% over the trailing twelve months, and an installs-weighted Market Score of 46.
Active installations
8,128
Zip markets
2
Median cost
$4.20/W
12-mo growth
▼ 12.3%
Installers active
609
City Market Score
Great · installs-weighted across 2 zips
Best zip in La Mesa scores higher than 72% of U.S. zip markets.
Versus California
How La Mesa 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
0.36%
of 2.3M tracked statewide
Battery attach
5.8%
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: 288–352 installs (midpoint 320)
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
La Mesa by year
341 installs in the trailing twelve months vs 389 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in La Mesa
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 1,063 | 67 | 2 | $4.61 |
| 2 | TESLA | 542 | 11 | 2 | $5.12 |
| 3 | SEMPER SOLARIS | 435 | 0 | 2 | $4.00 |
| 4 | BAKER ELECTRIC SOLAR | 421 | 0 | 2 | $4.30 |
| 5 | SULLIVAN SOLAR POWER | 270 | 0 | 2 | $4.30 |
| 6 | STELLAR SOLAR | 231 | 13 | 2 | $4.22 |
| 7 | SOLARTECH ENERGY SYSTEMS | 217 | 0 | 2 | $3.88 |
| 8 | BRIGHT PLANET SOLAR | 205 | 9 | 2 | $4.69 |
| 9 | SUNLINE ENERGY | 149 | 3 | 2 | $3.75 |
| 10 | SUNPOWER | 147 | 0 | 2 | $4.65 |
| 11 | ASI HEATING AIR | 119 | 0 | 2 | $3.76 |
| 12 | SUNGEVITY | 98 | 0 | 2 | $3.77 |
| 13 | HOME ENERGY SYSTEMS | 97 | 0 | 2 | $3.81 |
| 14 | INFINITY ENERGY | 81 | 0 | 2 | $5.21 |
| 15 | FREEDOM SOLAR POWER TX | 80 | 0 | 2 | $4.26 |
| 16 | SOLARE ENERGY | 69 | 1 | 2 | $4.14 |
| 17 | PALOMAR SOLAR | 64 | 1 | 2 | $3.59 |
| 18 | NEW POWER | 64 | 0 | 2 | $6.00 |
| 19 | JAMAR ELECTRIC SAN DIEGO | 63 | 0 | 2 | $3.72 |
| 20 | MILHOLLAND ELECTRIC | 63 | 0 | 2 | $4.87 |
| 21 | SOLAR UNIVERSE | 60 | 0 | 2 | $4.47 |
| 22 | PETERSENDEAN | 53 | 0 | 2 | $3.78 |
| 23 | BLALOCK ELECTRIC | 53 | 2 | 2 | $3.31 |
| 24 | COMPLETE SOLAR | 49 | 0 | 2 | $4.32 |
| 25 | CALSTATE SOLAR | 46 | 0 | 2 | $4.89 |