Counts from public records, not a review or rating. I have no partnership with Sunstor Solar; the name is as the utility recorded it.
Sunstor Solar at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 418 |
| Years in records | 2018–2023 |
| Latest record | 7/2023 |
| States | California |
| Top cities | Oroville, Chico, Yuba City, Marysville, Redding |
| Typical system | 6.7 kW |
| Main panel brand | Solaria Corporation |
| Main inverter brand | Enphase Energy Inc. |
| With a battery | 2% |
| Leased or PPA | 1% |
Records: LBNL Tracking the Sun.
Sunstor Solar systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 418 | 2018 | 2023-07 |
Systems by year
Where Sunstor Solar installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Oroville | 52 | 12% |
| Chico | 39 | 9% |
| Yuba City | 32 | 8% |
| Marysville | 17 | 4% |
| Redding | 14 | 3% |
| Olivehurst | 10 | 2% |
| Valley Springs | 10 | 2% |
| Stockton | 10 | 2% |
| Cottonwood | 9 | 2% |
| Paradise | 9 | 2% |
| Red Bluff | 8 | 2% |
| Willows | 8 | 2% |
Source: LBNL Tracking the Sun, residential systems in utility interconnection records. City as the utility recorded it. How I count.
Equipment and ownership
- Panels: Solaria Corporation (30%), Qcells North America (19%), Mission Solar Energy LLC (12%), CSI Solar Co., Ltd. (10%), Aptos Solar Technology LLC (9%)
- Inverters: Enphase Energy Inc. (90%), SolarEdge Technologies Ltd. (6%), Altenergy Power System Inc. (3%), SMA America (0%)
- Leases and PPAs: 1% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 2% of its systems had a battery on record.
Offered a lease or PPA? Read lease vs buy first.
Before you sign
- License. Look the company up with the California Contractors State License Board and check the name on the contract matches the license.
- Run the quote through the quote checker and the list in how to check a solar quote.
Companies of similar size in California records
Vasco Solar (421), Jim Hammond Electric (420), Soleeva (420), Heritage Construction Services (419), Allen Electric (416), Sunstar Energy (416), Unleash Solar (414), United Field (412).