RANKINGS
Key list: energy storage system owners by capacity
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This month our power industry key list brings you the 15 largest energy storage system owners by capacity, as ranked by GlobalData's Power Intelligence Centre. All numbers up to date as of April 2021.
| Company name | Entity type | Number of employees | Rated power (kW) |
| SolarReserve LLC | Private | - | 3,290,000 |
| SolarQ | Private | - | 3,000,000 |
| Burbank Water and Power | Private | - | 1,200,000 |
| Neoen Australia Pty Ltd | Private | - | 1,186,000 |
| NextEra Energy Resources LLC | Private | 5,000 | 930,200 |
| Abengoa Solar SA | Private | - | 773,000 |
| Pacific Gas and Electric Co | Public | 24,000 | 634,000 |
| Shanghai Electric Group Co Ltd | Public | 33,270 | 600,000 |
| PS Renewables Inc | Private | - | 500,000 |
| Sunshine Energy (Aust) Pty Ltd | Private | - | 500,000 |
| Recurrent Energy LLC | Private | - | 450,000 |
| Florida Power & Light Co | Private | 8,900 | 423,000 |
| Korea Electric Power Corp | Public | 46,377 | 418,550 |
| EDF Renewable Development, Inc. | Private | - | 415,000 |
| Grupo Ibereolica Renovables | Private | - | 410,000 |
