Turtle Creek Wind Farm LLC
Mitchell County, Iowa · EIA plant ID 61638 · Operator: Turtle Creek Wind Farm LLC
Nameplate199MWSummer 199 MW
Generators1in service
Net generation694GWh12 mo to Aug 2026
Capacity factor40%wind units, summer MW
Heat rate—thermal plants only
First online2018
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2018 | 18.2 | 12.3% | — |
| 2019 | 597.7 | 34.1% | — |
| 2020 | 658.6 | 37.5% | — |
| 2021 | 634.3 | 36.4% | — |
| 2022 | 800 | 45.9% | — |
| 2023 | 635.7 | 36.4% | — |
| 2024 | 734.6 | 42.0% | — |
| 2025 | 719.9 | 41.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| TC1 | Onshore Wind Turbine | WT | 199.2 | 199.2 | Dec 2018 | Operating | — | vestas V136-3.45 |
Owner / operator
Operator: Turtle Creek Wind Farm LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Turtle Creek Wind Farm LLC | 100.0% | 199 MW |
Nearby plants
Within 80 km.
| Buffalo Center Wind LLC | 2 MW | 8.1 km |
| Little Cedar | 3 MW | 10.1 km |
| Adams Wind Farm | 23 MW | 16.7 km |
| Osage (IA) | 19 MW | 16.8 km |
| Maple City | 2 MW | 17.1 km |
| Pioneer Prairie Wind Farm | 300 MW | 19.2 km |