Counts from public records, not a review or rating. I have no partnership with Northstar Solar; the name is as the utility recorded it.
Northstar Solar at a glance
| License lookup | California Contractors State License Board |
|---|---|
| Systems in records | 394 |
| Years in records | 2019–2023 |
| Latest record | 12/2023 |
| States | California |
| Top cities | Danville, San Ramon, Livermore, Walnut Creek, Oakland |
| Typical system | 7.4 kW |
| Main panel brand | LG Electronics Inc. |
| Main inverter brand | Enphase Energy Inc. |
| With a battery | 3% |
| Leased or PPA | 0% |
Records: LBNL Tracking the Sun.
Northstar Solar systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| California | 394 | 2019 | 2023-12 |
Systems by year
Where Northstar Solar installs
California
| City | Systems | Share of company's CA systems |
|---|---|---|
| Danville | 55 | 14% |
| San Ramon | 31 | 8% |
| Livermore | 29 | 7% |
| Walnut Creek | 27 | 7% |
| Oakland | 23 | 6% |
| Hayward | 22 | 6% |
| Concord | 18 | 5% |
| Pleasanton | 13 | 3% |
| Tracy | 12 | 3% |
| San Jose | 10 | 3% |
| Orinda | 10 | 3% |
| Castro Valley | 9 | 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: LG Electronics Inc. (27%), REC Solar (23%), Panasonic Corporation of North America (22%), Enphase Energy Inc. (15%), Silfab Solar Inc. (5%)
- Inverters: Enphase Energy Inc. (74%), SolarEdge Technologies Ltd. (9%), SunPower (0%), LG Electronics Inc. (0%)
- Leases and PPAs: 0% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 3% 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
M C Solar Engineering (398), Matson Services (398), Roger (396), Burmax (395), R T Maher Construction (392), Abc Solar (391), Ck Electric (391), Stephen Griffin Construction (391).