Counts from public records, not a review or rating. I have no partnership with Ambrose Solar; the name is as the utility recorded it.
Ambrose Solar at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 3,485 |
| Years in records | 2017–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | Vacaville, Fairfield, Napa, Dixon, Vallejo |
| Typical system | 7.2 kW |
| Main panel brand | SunPower |
| Main inverter brand | Enphase Energy Inc. |
| With a battery | 8% |
| Leased or PPA | 0% |
Records: LBNL Tracking the Sun.
Ambrose Solar systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 3,485 | 2017 | 2023-12 |
Systems by year
Where Ambrose Solar installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Vacaville | 1,197 | 34% |
| Fairfield | 443 | 13% |
| Napa | 156 | 4% |
| Dixon | 147 | 4% |
| Vallejo | 117 | 3% |
| Davis | 99 | 3% |
| Woodland | 75 | 2% |
| Suisun City | 68 | 2% |
| Winters | 66 | 2% |
| Concord | 58 | 2% |
| Benicia | 54 | 2% |
| Walnut Creek | 49 | 1% |
Source: LBNL Tracking the Sun, residential systems in utility interconnection records. City as the utility recorded it. How I count.
Equipment and ownership
- Panels: SunPower (82%), Tesla Inc. (4%), Alps Technology (4%), REC Solar (3%), Enphase Energy Inc. (3%)
- Inverters: Enphase Energy Inc. (75%), SunPower (16%), SolarEdge Technologies Ltd. (1%), SMA America (0%), ABB (0%)
- Leases and PPAs: 0% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 8% 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
Swss Electrical (3,533), California Solar Systems (3,527), Milholland Electric (3,508), Lennar Homes (3,493), West Coast Solar Norcal (3,454), A M Sun Solar (3,449), The Solar Company (3,443), Allterra Solar (3,435).