Counts from public records, not a review or rating. I have no partnership with Westhaven Power; the name is as the utility recorded it.
Westhaven Power at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 4,737 |
| Years in records | 2011–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | Yuba City, Marysville, Vacaville, Plumas Lake, Chico |
| Typical system | 7.2 kW |
| Main panel brand | SunPower |
| Main inverter brand | Enphase Energy Inc. |
| With a battery | 6% |
| Leased or PPA | 4% |
Records: LBNL Tracking the Sun.
Westhaven Power systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 4,737 | 2011 | 2023-12 |
Systems by year
Where Westhaven Power installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Yuba City | 1,213 | 26% |
| Marysville | 307 | 6% |
| Vacaville | 270 | 6% |
| Plumas Lake | 256 | 5% |
| Chico | 198 | 4% |
| Fairfield | 136 | 3% |
| Rocklin | 131 | 3% |
| Olivehurst | 119 | 3% |
| Woodland | 110 | 2% |
| Live Oak | 102 | 2% |
| Oroville | 89 | 2% |
| Lincoln | 86 | 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 (33%), SANYO ELECTRIC CO LTD OF PANASONIC GROUP (16%), Qcells North America (12%), CSI Solar Co., Ltd. (12%), LONGi Green Energy Technology Co., Ltd. (9%)
- Inverters: Enphase Energy Inc. (32%), SolarEdge Technologies Ltd. (30%), SunPower (16%), SMA America (15%), ABB (1%)
- Leases and PPAs: 4% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 6% 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
Sunstreet Energy Group (4,994), Smart Energy Usa (4,885), Solar Negotiators (4,878), Kuubix Energy (4,870), Sunline Energy (4,602), La Solar Group (4,540), Your Energy Solutions (4,379), American Array Solar Electric (4,291).