Solar installers in Napa County
205 companies have installed solar on 2,443 homes here since 2023. Covers Napa, American Canyon, St. Helena, Calistoga, Yountville, Angwin and nearby towns.
| Installer | Homes since 2023 | Median price in state |
|---|---|---|
| SunrunBased in San Francisco, CA · (805) 242-7255 | 495 | $3.60/W$0.47 below median |
| SunPowerBased in Richmond, CA · (908) 216-1280 | 270 | $4.25/W$0.18 above median |
| Green Stock SolarBased in Napa, CA · (925) 998-8929 | 107 | $3.55/W$0.52 below median |
| Ambrose SolarBased in Vacaville, CA · (707) 999-8036 | 106 | $4.53/W$0.46 above median |
| TeslaBased in Fremont, CA · (702) 680-6683 | 104 | $2.73/W$1.34 below median |
| V3 ElectricBased in El Dorado Hills, CA · (844) 837-6937 | 101 | $5.68/W$1.61 above median |
| Citadel Roofing And SolarBased in Vacaville, CA · (707) 446-5500 | 99 | $2.78/W$1.29 below median |
| Bright OpsBased in Worcester, MA · (888) 997-4469 | 98 | $5.26/W$1.19 above median |
| Northern Pacific PowerBased in Santa Rosa, CA · (707) 528-7652 | 65 | $3.89/W$0.18 below median |
| Better EarthBased in Cerritos, CA · (888) 373-9379 | 52 | $5.00/W$0.93 above median |
| Freedom ForeverBased in Temecula, CA · (800) 885-9450 | 44 | $4.91/W$0.84 above median |
| North ValleyBased in Sacramento, CA · (916) 550-0358 | 42 | $3.50/W$0.57 below median |
| Semper SolarisBased in El Cajon, CA · (619) 715-4054 | 42 | $4.45/W$0.38 above median |
| Master Roofing SolutionsBased in Sacramento, CA · (530) 718-8234 | 31 | $2.50/W$1.57 below median |
| Napa Electric ShopBased in Napa, CA · (707) 252-6611 | 31 | $4.12/W |
| Solar Savings DirectBased in Shingle Springs, CA · (530) 344-3237 | 26 | $3.55/W$0.52 below median |
| High Definition SolarBased in Concord, CA · (925) 566-8282 | 24 | $5.95/W$1.88 above median |
| Complete SolarBased in Lehi, UT · (877) 299-4943 | 22 | $4.25/W$0.18 above median |
| Solarcraft ServicesBased in Novato, CA · (415) 985-7510 | 22 | $4.20/W$0.13 above median |
| Rockin RoofersBased in Petaluma, CA · (707) 285-7037 | 21 | $4.00/W$0.07 below median |
| PowurBased in Del Mar, CA · (480) 626-7056 | 20 | $4.33/W$0.26 above median |
| Sunnova EnergyBased in Houston, TX · (281) 985-9820 | 19 | $3.99/W$0.08 below median |
| Suntegrity SolarBased in Santa Rosa, CA · (707) 623-1464 | 17 | $3.96/W$0.11 below median |
| J J ElectricBased in Sebastopol, CA · (707) 800-3884 | 16 | $3.67/W$0.40 below median |
| ESP ContractingBased in Torrance, CA · (866) 865-4559 | 15 | $4.23/W$0.16 above median |
| GAF EnergyBased in San Rafael, CA · (503) 887-9167 | 15 | $7.90/W$3.83 above median |
| Devine Solar SolutionsBased in Napa, CA · (707) 343-4221 | 14 | $4.36/W$0.29 above median |
| Hooked On SolarBased in Rocklin, CA · (916) 823-3770 | 14 | $4.45/W$0.38 above median |
| Nexus Energy SystemsBased in Garden Grove, CA · (805) 799-9788 | 14 | $4.45/W$0.38 above median |
| Gold Rush Energy SolutionsBased in El Dorado Hills, CA · (530) 556-0416 | 13 | $3.56/W$0.51 below median |
| KOTA ConstructionBased in Newbury Park, CA · (858) 328-2841 | 13 | $5.14/W$1.07 above median |
| Summit ElectricBased in Santa Rosa, CA · (707) 396-5909 | 13 | $3.65/W$0.42 below median |
| Bright Energy GroupBased in Benicia, CA · (435) 619-1304 | 12 | $3.77/W$0.30 below median |
| NRG Clean EnergyBased in Canoga Park, CA · (800) 698-6627 | 11 | $3.24/W$0.83 below median |
| Got Watts ElectricBased in Pleasant Hill, CA · (925) 421-0957 | 10 | $3.80/W$0.27 below median |
| Infinity EnergyBased in Rocklin, CA · (916) 474-4723 | 10 | $4.98/W$0.91 above median |
| RW Solar And ElectricBased in Vacaville, CA · (650) 759-5808 | 10 | $3.55/W$0.52 below median |
| Sun Solar ElectricBased in Petaluma, CA · (707) 658-2157 | 10 | $4.38/W$0.31 above median |
| Sustainable Living BuildersBased in Sebastopol, CA · (707) 595-8500 | 10 | $3.65/W$0.42 below median |
| Titan SolarBased in Mesa, AZ · (855) 729-7652 | 10 | $5.28/W$1.21 above median |
Ranked by homes installed, which shows who’s active here, not who’s best. Prices are each company’s median for systems sold outright, shown when it sold at least 10. Show all 205 installers
Towns in Napa County: Napa, American Canyon, St. Helena, Calistoga, Yountville, Angwin, Deer Park, Moskowite Corner, Oakville, Rutherford, Silverado Resort.
Other California counties
How much does solar cost in Napa County, CA?
Homes in Napa County that bought solar in 2023–2025 paid a median $4.25/W installed, about $23,400 for a 5.5 kW system before incentives.
Which solar companies install in Napa County, CA?
205 installers have put in home systems in Napa County since 2023, the busiest being Sunrun, SunPower, Green Stock Solar, Ambrose Solar, Tesla.
Installed prices and installers from public installation records: Lawrence Berkeley National Laboratory’s Tracking the Sun (systems installed through 2025) and state program files from California, New York, New Jersey, Connecticut, Illinois and Oregon, which run into 2026. Prices are in dollars per watt of panel capacity (DC), before rebates and tax credits, for homes that bought their system; leased systems and systems with batteries are left out.