Langdon Wind Energy Center
Cavalier County, North Dakota · EIA plant ID 57033 · Operator: Otter Tail Power Co
Nameplate41MWSummer 41 MW
Generators1in service
Net generation173GWh12 mo to Dec 2025
Capacity factor49%wind units, summer MW
Heat rate—thermal plants only
First online2007
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) |
|---|---|---|---|
| 2009 | 154.3 | 550.6% | — |
| 2010 | 141.2 | 503.5% | — |
| 2011 | 160.9 | 573.9% | — |
| 2012 | 143.5 | 40.3% | — |
| 2013 | 136 | 38.3% | — |
| 2014 | 152.9 | 43.1% | — |
| 2015 | 147.7 | 41.6% | — |
| 2016 | 149.7 | 42.1% | — |
| 2017 | 161.6 | 45.6% | — |
| 2018 | 143 | 40.3% | — |
| 2019 | 137.2 | 38.7% | — |
| 2020 | 141.3 | 39.7% | — |
| 2021 | 144.1 | 40.6% | — |
| 2022 | 136.4 | 38.4% | — |
| 2023 | 104.7 | 29.5% | — |
| 2024 | 94.9 | 26.7% | — |
| 2025 | 172.7 | 48.7% | — |
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 | 40.5 | 40.5 | Dec 2007 | Operating | — | ge 1.6-97 |
Owner / operator
Operator: Otter Tail Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Otter Tail Power Co | 100.0% | 41 MW |
Nearby plants
Within 80 km.
| Langdon Wind II LLC | 41 MW | 0.1 km |
| Langdon Wind LLC | 119 MW | 0.1 km |
| Grafton | 4 MW | 70.9 km |