Wellsburg Wind Project
Grundy County, Iowa · EIA plant ID 58886 · Operator: MidAmerican Energy Co
Nameplate141MWSummer 139 MW
Generators1in service
Net generation305GWh12 mo to Dec 2025
Capacity factor25%wind units, summer MW
Heat rate—thermal plants only
First online2014
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), wind units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
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) |
|---|---|---|---|
| 2014 | 32.1 | 30.6% | — |
| 2015 | 510.8 | 41.4% | — |
| 2016 | 503.8 | 40.7% | — |
| 2017 | 490.3 | 39.8% | — |
| 2018 | 431.1 | 35.5% | — |
| 2019 | 403.3 | 33.2% | — |
| 2020 | 431.8 | 34.9% | — |
| 2021 | 474 | 38.4% | — |
| 2022 | 525.7 | 43.3% | — |
| 2023 | 441.8 | 36.4% | — |
| 2024 | 468.7 | 38.5% | — |
| 2025 | 304.8 | 25.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WBWF | Onshore Wind Turbine | WT | 140.8 | 138.6 | Dec 2014 | Operating | — | siemens SWT-2.3-108 |
Owner / operator
Operator: MidAmerican Energy Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| MidAmerican Energy Co | 100.0% | 141 MW |
Nearby plants
Within 80 km.
| Ivester Wind Farm | 91 MW | 6.6 km |
| Grundy Center City Light Plant | 9 MW | 16.3 km |
| Dike City Power Plant | 2 MW | 29 km |
| Vienna Wind Farm | 150 MW | 30.1 km |
| Whispering Willow Wind Farm - East | 200 MW | 33.1 km |
| Leonardo Wind 1 LLC | 3 MW | 35 km |