Clayton, CA solar installation & market data

Updated April 29, 2026 By The SolarDNA Data Team

Clayton has 1,440 solar installations across 1 zip code at a median installed cost of $4.37/W, installations down 8.9% over the trailing twelve months, and an installs-weighted Market Score of 43.

See Clayton on the map California market

Active installations

1,440

Zip markets

Median cost

$4.37/W

12-mo growth

▼ 8.9%

Installers active

City Market Score

Good · installs-weighted across 1 zips

Best zip in Clayton scores higher than 56% of U.S. zip markets.

Versus California

How Clayton compares with the state

Installed cost

$0.11/W above

state median $4.26/W

Market score

43 vs 53

California scores 53

Share of state installs

0.06%

of 2.3M tracked statewide

Battery attach

10.8%

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: 62–76 installs (midpoint 69)

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

Clayton by year

72 installs in the trailing twelve months vs 79 before

Installations by year

Median installed cost, $/W DC by year

Installer comp set

Who installs in Clayton

Summed across every zip in the city

Export CSV

#	Installer	Installs	12-mo	Zips	$/W
1	SUNRUN	238	15	1	$4.45
2	TESLA	178	7	1	$5.12
3	SUNPOWER	62	0	1	$4.25
4	DIABLO SOLAR SERVICES	56	2	1	$4.11
5	WEST COAST SOLAR	53	2	1	$3.75
6	THE SOLAR COMPANY	39	0	1	$6.27
7	BRIGHT OPS	36	1	1	$4.38
8	KOTA CONSTRUCTION	35	0	1	$5.01
9	SEMPER SOLARIS	34	2	1	$4.65
10	PETERSENDEAN	31	0	1	$3.85
11	SUNGEVITY	21	0	1	$3.72
12	YOUR ENERGY SOLUTIONS	20	2	1	$3.33

Zip markets

Zips in Clayton

Ranked by installations · click for the zip market

Zip	Installs	$/W	Score
94517	1,440	$4.37	43 C