Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | RE Tranquillity | Chestnut |
|---|---|---|
| 277.3 MW | 285.6 MW | |
| Batteries, Solar Photovoltaic | Batteries, Solar Photovoltaic | |
| Southern Power Co | Chestnut Westside LLC | |
| 3 | 2 | |
| 491.4 GWh | 363.2 GWh | |
| 20.2% (2024) | 15.1% (2025) | |
| #133 of 7,234 | #264 of 7,234 | |
| 2024-12 | 2026-06 |