Top solar equipment & developers in the US
The most-installed panel and inverter manufacturers and the most active developers across 4,661,007 recorded installations. Ranked by systems where the equipment or developer is recorded in public data.
Dataset updated . Sources: LBNL Tracking the Sun + state programs + city permits, CEC-matched where available.
Hardware
Top panel manufacturers
| # | Panel manufacturer | Systems |
|---|---|---|
| 1 | SunPower | 6,685 |
| 2 | Trina Solar | 4,681 |
| 3 | CSI Solar Co., Ltd. | 4,456 |
| 4 | Qcells North America | 4,447 |
| 5 | LG Electronics Inc. | 3,853 |
| 6 | Canadian Solar | 2,796 |
| 7 | REC Solar | 2,758 |
| 8 | JA Solar | 2,604 |
| 9 | SolarWorld | 2,594 |
| 10 | Hanwha Q CELLS | 2,478 |
| 11 | REC | 2,016 |
| 12 | Jinko Solar Co., Ltd | 1,765 |
Hardware
Top inverter manufacturers
| # | Inverter manufacturer | Systems |
|---|---|---|
| 1 | SMA America | 20,387 |
| 2 | SolarEdge Technologies Ltd. | 16,223 |
| 3 | Yaskawa Solectria Solar | 7,451 |
| 4 | Chint Power Systems America | 6,447 |
| 5 | SolarEdge Technologies | 4,224 |
| 6 | SolarEdge | 3,533 |
| 7 | Enphase | 3,483 |
| 8 | Fronius USA | 2,863 |
| 9 | Tesla | 2,607 |
| 10 | Enphase Energy Inc. | 2,578 |
| 11 | PV Powered | 1,984 |
| 12 | Fronius International GmbH | 1,728 |
Storage
Top battery manufacturers
| # | Battery manufacturer | Systems |
|---|---|---|
| 1 | Tesla | 1,543 |
| 2 | Tesla Inc. | 171 |
| 3 | Enphase | 109 |
| 4 | Franklin | 84 |
| 5 | LG Energy Solution | 40 |
| 6 | Sungrow Power Supply Co., Ltd. | 26 |
| 7 | Altenergy Power System Inc. | 14 |
| 8 | Energport Inc. | 13 |
Companies
Most active solar developers
| # | Developer | Systems |
|---|---|---|
| 1 | PRO CUSTOM SOLAR LLC | 7,689 |
| 2 | VENTURE HOME SOLAR LLC | 5,523 |
| 3 | SolarCity Corporation | 4,162 |
| 4 | CENTURION SOLAR ENERGY | 3,581 |
| 5 | SUNRUN INSTALLATION SERVICES INC | 3,160 |
| 6 | SUNRUN INSTALLATION SERVICES INC. | 3,086 |
| 7 | PosiGen Provider LLC | 2,968 |
| 8 | ONEWORLDENERGY LLC | 2,694 |
| 9 | BELL BROTHER'S HEATING AND AIR INC | 2,632 |
| 10 | Sunrun | 2,613 |
| 11 | ZACHER, PAUL K | 2,276 |
| 12 | BONNEY PLUMBING LLC | 2,248 |
Developer names as recorded on interconnection and permit records; the same company may appear under multiple recorded spellings.
Frequently asked questions
What is the most-installed solar panel brand in the US?
Across recorded equipment on 305,458 systems, SunPower appears on the most (6,685), followed by Trina Solar, CSI Solar Co., Ltd., Qcells North America. Counts reflect systems where the manufacturer is recorded in public data, not market share of sales.
Which solar inverter manufacturers are most common?
SMA America leads recorded inverter installs (20,387 systems), with SolarEdge Technologies Ltd., Yaskawa Solectria Solar, Chint Power Systems America close behind.
Where does this equipment data come from?
Equipment records are compiled from LBNL Tracking the Sun, state incentive programs and city permit data, matched to California Energy Commission equipment listings where available. Coverage varies by jurisdiction — some systems record no equipment detail.