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United States › California › Butte County

Butte County, CA solar installation & market data

Updated May 19, 2026 By The SolarDNA Data Team
Butte County has 24,992 solar installations across 23 zip codes at a median installed cost of $3.88/W, installations up 5.1% over the trailing twelve months, and an installs-weighted Market Score of 51.
Active installations
24,992
Zip markets
23
Median cost
$3.88/W
12-mo growth
▲ 5.1%
Installers active
684
51
County Market Score
Excellent · installs-weighted across 23 zips
Best zip in Butte County scores higher than 99% of U.S. zip markets.
Versus California

How Butte County compares with the state

Installed cost
$0.39/W below
state median $4.26/W
Market score
51 vs 53
California scores 53
Share of state installs
1.11%
of 2.3M tracked statewide
Battery attach
5.2%
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: 1,440–1,760 installs (midpoint 1,600)
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

Butte County by year

1,560 installs in the trailing twelve months vs 1,485 before

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

Who installs in Butte County

Summed across every zip in the county

Export CSV
#InstallerInstalls12-moZips$/W
1SUNRUN2,77020519$4.43
2ALTERNATIVE ENERGY SYSTEMS2,6206518$4.01
3TESLA1,9152016$5.12
4ROYAL AIRE1,0536814$3.94
5OHM SOLAR SOLUTIONS8219716$4.39
6CLIMATE AND ENERGY697014$3.18
7CHICO ELECTRIC6461214$3.17
8FREEDOM FOREVER6023317$4.26
9UNITED SUN ENERGY5853010$3.02
10URBAN DESIGN4976711$3.69
11PREMIER SOLAR SOLUTIONS484014$4.66
12URBAN DESIGN SOLAR458313$3.37
13BRIGHT OPS3389613$4.52
14PHOENIX SOLAR ENERGY324010$4.02
15FEATHER RIVER AIRE AND SOLAR3232313$3.62
16BLM HOLDINGS271228$2.85
17NORTH STATE SOLAR268012$3.73
18WESTHAVEN POWER2612211$4.51
19INFINITY ENERGY256016$4.93
20CAPTIVE SOLAR ENERGY237010$3.55
21CHICO SOLAR WORKS2291911$3.28
22SUNPOWER21907$4.51
23ELITE SOLAR195013$3.20
24SUNWORKS194014$3.58
25SPG SOLAR193012$7.34
Zip markets

Zips in Butte County

Ranked by installations · click for the zip market

ZipInstalls$/WScore
959736,228$3.7656 A
959284,352$3.7345 C
959263,932$3.8658 A
959663,304$4.3047 B
959692,894$3.5956 A
959651,785$4.2546 B
95938745$3.7644 C
95948610$4.0043 C
95954388$3.9942 C
95917214$3.9541 C
95942141$4.0040 C
95914113$4.3339 D
9596890$4.3338 D
9597473$3.8641 C
9591664$4.2139 C
9595817$4.0539 C
9594110$5.8431 F
959279$4.1739 C
959299$2.7545 C
959677$5.4133 F
959784$5.2734 D
959302$3.4242 C
959761$3.7041 C