Counts from public records, not a review or rating. I have no partnership with Spg Solar; the name is as the utility recorded it.
Spg Solar at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 1,158 |
| Years in records | 2001–2014 |
| Latest record | 7/2014 |
| States | California, Arizona |
| Top cities | Chico, Oroville, San Rafael, Mill Valley, Santa Rosa |
| Typical system | 4.9 kW |
| Main panel brand | Kyocera Solar |
| Main inverter brand | Fronius USA |
| With a battery | not on record |
| Leased or PPA | 3% |
Records: LBNL Tracking the Sun.
Spg Solar systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 1,143 | 2001 | 2014-07 |
| Arizona | 15 | 2008 | 2012-05 |
Systems by year
Where Spg Solar installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Chico | 80 | 7% |
| Oroville | 76 | 7% |
| San Rafael | 70 | 6% |
| Mill Valley | 63 | 6% |
| Santa Rosa | 56 | 5% |
| Napa | 49 | 4% |
| Novato | 46 | 4% |
| Petaluma | 36 | 3% |
| San Francisco | 32 | 3% |
| Kentfield | 28 | 2% |
| Berkeley | 27 | 2% |
| Tiburon | 27 | 2% |
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: Kyocera Solar (67%), Sharp (16%), Suntech Power (5%), Alps Technology (4%), Mitsubishi Electric (2%)
- Inverters: Fronius USA (49%), SMA America (24%), Xantrex Technology (9%), Sharp (5%), Power-One (2%)
- Leases and PPAs: 3% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: not on record — home batteries were rare in utility records before 2018.
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
Swell Energy (1,188), Adr Electric (1,182), Senga Energy (1,177), Pell Solar (1,174), Ces Construction (1,152), Empire Solar Group (1,150), Clayco Electric (1,139), J P Electric Service (1,139).