Counts from public records, not a review or rating. I have no partnership with Sun First; the name is as the utility recorded it.
Sun First at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 1,966 |
| Years in records | 2001–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | San Rafael, Mill Valley, Santa Rosa, Novato, San Anselmo |
| Typical system | 5.8 kW |
| Main panel brand | SunPower |
| Main inverter brand | SunPower |
| With a battery | 8% |
| Leased or PPA | 3% |
Records: LBNL Tracking the Sun.
Sun First systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 1,966 | 2001 | 2023-12 |
Systems by year
Where Sun First installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| San Rafael | 208 | 11% |
| Mill Valley | 189 | 10% |
| Santa Rosa | 111 | 6% |
| Novato | 106 | 5% |
| San Anselmo | 87 | 4% |
| Hidden Valley Lake | 77 | 4% |
| Sonoma | 66 | 3% |
| Napa | 56 | 3% |
| Berkeley | 56 | 3% |
| Tiburon | 55 | 3% |
| Oakland | 54 | 3% |
| Petaluma | 45 | 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: SunPower (72%), Alps Technology (6%), BP Solar (6%), Sharp (3%), LG Electronics Inc. (3%)
- Inverters: SunPower (46%), SMA America (18%), Enphase Energy Inc. (13%), SolarEdge Technologies Ltd. (5%), ABB (4%)
- Leases and PPAs: 3% 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
Solarponics (2,207), Burke Electric (1,998), Ameco Solar (1,975), Arise Solar (1,975), C S S Construction (1,965), Acro Energy (1,900), Divine Power Usa (1,880), Diablo Solar Services (1,841).