Counts from public records, not a review or rating. I have no partnership with Cobalt Power Systems; the name is as the utility recorded it.
Cobalt Power Systems at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 2,870 |
| Years in records | 2004–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | Los Altos, San Jose, Los Altos Hills, Mountain View, Sunnyvale |
| Typical system | 7.3 kW |
| Main panel brand | SunPower |
| Main inverter brand | SunPower |
| With a battery | 8% |
| Leased or PPA | 4% |
Records: LBNL Tracking the Sun.
Cobalt Power Systems systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 2,870 | 2004 | 2023-12 |
Systems by year
Where Cobalt Power Systems installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Los Altos | 507 | 18% |
| San Jose | 295 | 10% |
| Los Altos Hills | 215 | 7% |
| Mountain View | 210 | 7% |
| Sunnyvale | 173 | 6% |
| Menlo Park | 160 | 6% |
| Portola Valley | 137 | 5% |
| Los Gatos | 133 | 5% |
| Saratoga | 132 | 5% |
| Atherton | 99 | 3% |
| Redwood City | 84 | 3% |
| Cupertino | 84 | 3% |
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 (75%), Suniva (7%), Sharp (5%), Alps Technology (4%), LG Electronics Inc. (4%)
- Inverters: SunPower (56%), SMA America (12%), Enphase Energy Inc. (12%), SolarEdge Technologies Ltd. (12%), Fronius USA (1%)
- Leases and PPAs: 4% 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
Suncrest Solar (2,921), Home Energy Systems (2,910), Gold Rush Energy Solutions (2,903), High Definition Solar Construction (2,873), Fidelity Home Energy (2,763), Sungate Energy Solutions (2,762), Exo Energy (2,723), noMatch (2,663).