Counts from public records, not a review or rating. I have no partnership with South Mountain Company; the name is as the utility recorded it.
South Mountain Company at a glance
| License lookup | Massachusetts eLicensing lookup (Division of Occupational Licensure) |
|---|---|
| Systems in records | 447 |
| Years in records | 2007–2023 |
| Latest record | 10/2023 |
| States | Massachusetts |
| Top cities | West Tisbury, Edgartown, Chilmark, Tisbury, Oak Bluffs |
| Typical system | 7.5 kW |
| Main panel brand | SunPower |
| Main inverter brand | SolarEdge Technologies Ltd. |
| With a battery | 1% |
| Leased or PPA | 0% |
Records: LBNL Tracking the Sun.
South Mountain Company systems by state
| State | Systems | Earliest record | Latest record |
|---|---|---|---|
| Massachusetts | 447 | 2007 | 2023-10 |
Systems by year
Where South Mountain Company installs
Massachusetts
| City | Systems | Share of company's MA systems |
|---|---|---|
| West Tisbury | 109 | 24% |
| Edgartown | 103 | 23% |
| Chilmark | 99 | 22% |
| Tisbury | 60 | 13% |
| Oak Bluffs | 56 | 13% |
| Aquinnah | 19 | 4% |
| Sandwich | 1 | 0% |
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 (77%), LG Electronics Inc. (18%), Qcells North America (2%), Evergreen Solar (2%), Kyocera Solar (0%)
- Inverters: SolarEdge Technologies Ltd. (74%), SunPower (18%), Fronius USA (2%), ABB (2%), SMA America (0%)
- Leases and PPAs: 0% of its systems with known ownership were leased or under a power purchase agreement.
- Batteries: 1% 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 Massachusetts eLicensing lookup (Division of Occupational Licensure) 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 Massachusetts records
Mass Renewables (565), Cazeault Solar (513), Revision Energy (513), Brightstar Solar (486), Invaleon Technologies Corporation (427), Solar Five (413), Solar Wolf Energy (365), Nuwatt Energy (355).