Winchester, CA solar installation & market data

Updated May 12, 2026 By The SolarDNA Data Team

Winchester has 8,679 solar installations across 1 zip code at a median installed cost of $4.25/W, installations up 4.6% over the trailing twelve months, and an installs-weighted Market Score of 50.

See Winchester on the map California market

Active installations

8,679

Zip markets

Median cost

$4.25/W

12-mo growth

▲ 4.6%

Installers active

City Market Score

Great · installs-weighted across 1 zips

Best zip in Winchester scores higher than 87% of U.S. zip markets.

Versus California

How Winchester compares with the state

Installed cost

$0.01/W below

state median $4.26/W

Market score

50 vs 53

California scores 53

Share of state installs

0.38%

of 2.3M tracked statewide

Battery attach

12.7%

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: 1,057–1,291 installs (midpoint 1,174)

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

Winchester by year

1,148 installs in the trailing twelve months vs 1,097 before

Installations by year

Median installed cost, $/W DC by year

Installer comp set

Who installs in Winchester

Summed across every zip in the city

Export CSV

#	Installer	Installs	12-mo	Zips	$/W
1	SUNPOWER	2,351	102	1	$4.25
2	SUNRUN	1,798	595	1	$3.83
3	TESLA	610	15	1	$4.73
4	SUNNOVA ENERGY	534	0	1	$3.80
5	SOLCIUS	255	1	1	$4.54
6	VERENGO	187	0	1	$2.36
7	SUNGEVITY	170	0	1	$3.74
8	FREEDOM FOREVER	127	16	1	$3.91
9	SUNNOVA ENERGY CORPORATION	113	14	1	$9.59
10	G A F ENERGY	105	95	1	$7.50
11	CURRENT HOME SOLAR	98	0	1	$4.74
12	LEONARD ROOFING	97	0	1	$2.37

Zip markets

Zips in Winchester

Ranked by installations · click for the zip market

Zip	Installs	$/W	Score
92596	8,679	$4.25	50 B