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San Diego, CA solar installation & market data

Updated May 18, 2026 By The SolarDNA Data Team
San Diego has 110,083 solar installations across 40 zip codes at a median installed cost of $4.20/W, installations down 9.8% over the trailing twelve months, and an installs-weighted Market Score of 46.
Active installations
110,083
Zip markets
40
Median cost
$4.20/W
12-mo growth
▼ 9.8%
Installers active
1,629
46
City Market Score
Great · installs-weighted across 40 zips
Best zip in San Diego scores higher than 99% of U.S. zip markets.
Versus California

How San Diego compares with the state

Installed cost
$0.06/W below
state median $4.26/W
Market score
46 vs 53
California scores 53
Share of state installs
4.87%
of 2.3M tracked statewide
Battery attach
6.8%
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: 4,382–5,356 installs (midpoint 4,869)
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

San Diego by year

5,120 installs in the trailing twelve months vs 5,677 before

Installations by year
Median installed cost, $/W DC by year
Installer comp set

Who installs in San Diego

Summed across every zip in the city

Export CSV
#InstallerInstalls12-moZips$/W
1SUNRUN15,34383330$4.61
2TESLA9,97815832$4.63
3BAKER ELECTRIC SOLAR6,815030$4.28
4SEMPER SOLARIS4,930031$4.05
5SUNPOWER3,47915031$4.59
6STELLAR SOLAR3,30414232$4.10
7SULLIVAN SOLAR POWER3,089030$4.29
8BRIGHT PLANET SOLAR2,84223230$4.74
9SUNLINE ENERGY2,51411930$3.87
10SOLARTECH ENERGY SYSTEMS2,138031$3.79
11SUNSTREET ENERGY GROUP1,48206$3.81
12FREEDOM SOLAR POWER TX1,337030$4.22
13HOME ENERGY SYSTEMS1,2863130$3.88
14ASI HEATING AIR1,079029$3.70
15SUNGEVITY995029$3.99
16MILHOLLAND ELECTRIC947029$5.03
17WEST COAST SOLAR9015728$4.16
18INFINITY ENERGY898128$4.90
19SOLARE ENERGY846129$4.07
20BLALOCK ELECTRIC7514129$3.36
21PALOMAR SOLAR7101828$3.75
22SMART SOLAR OF SOUTHERN CALIFORNIA6951030$3.73
23VERENGO614027$3.16
24PETERSENDEAN609029$4.04
25SOLAR OPTIMUM DESIGN ELECTRIC564029$2.98
Zip markets

Zips in San Diego

Ranked by installations · click for the zip market

ZipInstalls$/WScore
921278,226$3.8245 C
921307,905$3.9843 C
921297,704$4.0147 B
921267,229$4.2260 A
921146,575$4.6840 C
921286,119$4.2248 B
921546,033$4.5038 D
921175,918$4.2451 A
921315,677$4.0043 C
921204,516$4.1148 B
921153,794$4.3044 C
921193,511$4.1946 B
921113,437$4.2450 B
921393,057$4.5643 C
921232,837$4.0447 B
921052,732$4.5642 C
921092,689$4.1451 A
921042,435$4.3049 B
921242,434$4.2043 C
921222,315$4.1142 C
921062,256$4.0443 C
921162,050$4.3044 C
921072,014$4.0944 C
921031,885$4.1457 A
921021,882$4.6140 C
921101,737$4.1051 A
921131,557$4.8040 C
92121616$3.6644 C
92108518$4.2753 A
92101268$4.6138 D
92145132$4.2139 C
921409$4.3438 D
921125$6.5028 F
921363$3.3443 C
921792$3.3543 C
921322$4.0639 C
921991$7.4328 F
921581—38 D
921601$4.2239 D
921771$8.6028 F