Elwood Energy Storage CenterRetired
DuPage County, Illinois · EIA plant ID 59959 · Operator: West Chicago Battery Storage LLC
×20 MW battery retired since 2020 (latest Jul 2022)
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 | -4 | — | — |
| 2017 | -5.7 | — | — |
| 2018 | -4.1 | — | — |
| 2019 | -2.3 | — | — |
| 2020 | -1.6 | — | — |
| 2021 | -0.9 | — | — |
| 2022 | 0 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WCBS | Batteries | BA | 19.8 | 19.8 | Oct 2015 | Retired Jul 2022 | — | coming soon |
Owner / operator
Operator: West Chicago Battery Storage 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.
| Geneva Generation Facility | 30 MW | 4.1 km |
| DS Containers | 2 MW | 4.4 km |
| Settlers Hill Gas Recovery | 6 MW | 6.1 km |
| Aurora | 1,086 MW | 9.1 km |
| Woodland Landfill Gas Recovery | 5 MW | 10.3 km |
| Nalco | 5 MW | 10.9 km |