Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Citadel Battery Storage Plant | Callisto I Energy Center |
|---|---|---|
| Capacity | 204 MW | 223.4 MW |
| Technology | Batteries | Batteries |
| Operator | Citadel BESS LLC | Callisto I Energy Center |
| Operating units | 1 | 1 |
| Latest 12-month generation | 89.8 GWh | 117.7 GWh |
| Latest complete-year capacity factor | — | — |
| National technology rank | #46 of 962 | #40 of 962 |
| Latest EIA report | 2026-06 | 2026-06 |