Counts from public records, not a review or rating. I have no partnership with A1 Solar Power; the name is as the utility recorded it.
A1 Solar Power at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 3,721 |
| Years in records | 2009–2019 |
| Latest record | 5/2019 |
| States | California, Arizona |
| Top cities | San Diego, San Jose, Los Angeles, Santa Rosa, Concord |
| Typical system | 4.3 kW |
| Main panel brand | SolarWorld |
| Main inverter brand | SolarEdge Technologies Ltd. |
| With a battery | 0% |
| Leased or PPA | 7% |
Records: LBNL Tracking the Sun.
A1 Solar Power systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 3,720 | 2009 | 2019-05 |
| Arizona | 1 | 2012 | 2012-08 |
Systems by year
Where A1 Solar Power installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| San Diego | 119 | 3% |
| San Jose | 109 | 3% |
| Los Angeles | 104 | 3% |
| Santa Rosa | 101 | 3% |
| Concord | 82 | 2% |
| Napa | 70 | 2% |
| Sebastopol | 60 | 2% |
| Petaluma | 59 | 2% |
| Stockton | 49 | 1% |
| Oakland | 49 | 1% |
| Livermore | 45 | 1% |
| San Rafael | 38 | 1% |
Arizona
| City | Systems | Share of company's AZ systems |
|---|
Source: LBNL Tracking the Sun, residential systems in utility interconnection records. City as the utility recorded it. How I count.
Equipment and ownership
- Panels: SolarWorld (76%), Sharp (6%), Suntech Power (2%), CSI Solar Co., Ltd. (1%), Trina Solar (1%)
- Inverters: SolarEdge Technologies Ltd. (50%), SMA America (16%), Ningbo Ginlong Technologies Co.,Ltd. (15%), Enphase Energy Inc. (10%), ABB (4%)
- Leases and PPAs: 7% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 0% 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.
- License. Look the company up with the Arizona Registrar of Contractors 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
Solar Technologies (4,069), Precis Solar (3,994), Clean Solar (3,864), Sunergy Construction (3,830), Sunpro Solar (3,622), Blalock Electric (3,613), West Coast Solar (3,576), Swss Electrical (3,533).