Counts from public records, not a review or rating. I have no partnership with Option One Corporation; the name is as the utility recorded it.
Option One Corporation at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 1,793 |
| Years in records | 2013–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | Apple Valley, Victorville, Hesperia, Phelan, Helendale |
| Typical system | 8.0 kW |
| Main panel brand | REC Solar |
| Main inverter brand | Enphase Energy Inc. |
| With a battery | 5% |
| Leased or PPA | 1% |
Records: LBNL Tracking the Sun.
Option One Corporation systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 1,793 | 2013 | 2023-12 |
Systems by year
Where Option One Corporation installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Apple Valley | 540 | 30% |
| Victorville | 179 | 10% |
| Hesperia | 153 | 9% |
| Phelan | 51 | 3% |
| Helendale | 46 | 3% |
| Barstow | 43 | 2% |
| Oak Hills | 36 | 2% |
| Palm Springs | 32 | 2% |
| Fontana | 31 | 2% |
| Yucca Valley | 24 | 1% |
| San Bernardino | 19 | 1% |
| San Diego | 18 | 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: REC Solar (30%), HYUNDAI ENERGY SOLUTIONS CO., LTD. (29%), Sunpreme Inc. (10%), LG Electronics Inc. (8%), CSI Solar Co., Ltd. (7%)
- Inverters: Enphase Energy Inc. (59%), SolarEdge Technologies Ltd. (38%), Tesla Inc. (2%), SMA America (1%), Ginlong Technologies Co., Ltd. (0%)
- Leases and PPAs: 1% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 5% 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
Syntrol Dba Unisun (1,829), Quick Systems (1,821), Sierra Pacific Home Comfort (1,816), Natural Energy (1,800), California Solar Electric (1,788), Clear Solar (1,783), Valley Unique Electric (1,729), Penguin Home Solutions (1,728).