AES Warrior Run Energy Storage ProjectRetired
Allegany County, Maryland · EIA plant ID 59949 · Operator: AES Tait LLC
×11 MW battery retired since 2020 (latest Oct 2024)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online—
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2016 | -1.3 | — | — |
| 2017 | -2.6 | — | — |
| 2018 | -0.1 | — | — |
| 2019 | -2 | — | — |
| 2020 | -1.9 | — | — |
| 2021 | -2.1 | — | — |
| 2022 | -2.4 | — | — |
| 2023 | -1.9 | — | — |
| 2024 | -0.7 | — | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| BESS1 | Batteries | BA | 11 | 5 | Dec 2015 | Retired Oct 2024 | — | coming soon |
Owner / operator
Operator: AES Tait LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| AES Warrior Run Cogeneration Facility | retired | 0.2 km |
| Dans Mountain | 55 MW | 12.5 km |
| Jade Meadow LLC | 20 MW | 17.6 km |
| Twin Ridges Wind Farm | 139 MW | 21.7 km |
| Fourmile Ridge | 40 MW | 23.4 km |
| Pinnacle Wind Force LLC | 54 MW | 29.5 km |