Cimarron Windpower II
Gray County, Kansas · EIA plant ID 57663 · Operator: Duke Energy Renewables Services
Nameplate131MWSummer 131 MW
Generators1in service
Net generation437GWh12 mo to Dec 2025
Capacity factor38%wind units, summer MW
Heat rate—thermal plants only
First online2012
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) |
|---|---|---|---|
| 2012 | 276.1 | 41.0% | — |
| 2013 | 503.4 | 43.9% | — |
| 2014 | 570 | 49.7% | — |
| 2015 | 549.7 | 47.9% | — |
| 2016 | 568.1 | 49.4% | — |
| 2017 | 553.8 | 48.3% | — |
| 2018 | 550.1 | 47.9% | — |
| 2019 | 534.2 | 46.6% | — |
| 2020 | 553.7 | 48.1% | — |
| 2021 | 548.7 | 47.8% | — |
| 2022 | 457.6 | 39.9% | — |
| 2023 | 475.5 | 41.4% | — |
| 2024 | 284.9 | 24.8% | — |
| 2025 | 437 | 38.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | WT | 131 | 131 | Jun 2012 | Operating | — | siemens SWT-2.3-108 |
Owner / operator
Operator: Duke Energy Renewables Services. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Sumitomo Corporation of America | 50.0% | 66 MW |
| DEGS Wind 1 LLC | 50.0% | 66 MW |
Nearby plants
Within 80 km.
| Cimarron Wind Energy LLC | 166 MW | 8.6 km |
| Gray County Wind Energy | 112 MW | 32 km |
| Ensign Wind LLC | 99 MW | 32.9 km |
| Jameson Energy Center | 28 MW | 40.7 km |
| Boot Hill Solar | 150 MW | 41 km |
| Boot Hill Energy Storage | — | 41.1 km |