Steele Flats Energy StorageUnder construction
Jefferson County, Nebraska · EIA plant ID 70345 · Operator: Steele Flats Energy Storage, LLC
50 MW under construction (Batteries), first expected Dec 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 50 MW building
Net generation—GWh12 mo
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online—
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.
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 |
|---|---|---|---|---|---|---|---|---|
| SFES | Batteries | BA | 50 | 50 | planned Dec 2026 | Under construction | — | coming soon |
Owner / operator
Operator: Steele Flats Energy 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.
| Steele Flats Wind Project LLC | 79 MW | 0.3 km |
| Beatrice | 247 MW | 33.3 km |
| Washington | 11 MW | 35.7 km |
| Wilber | 4 MW | 47.6 km |
| High Banks Wind | 643 MW | 48.5 km |
| Milligan 1 Wind Farm | 300 MW | 52.7 km |