Glen Ullin Station 6Retired
Morton County, North Dakota · EIA plant ID 57172 · Operator: Montana-Dakota Utilities Co
×5 MW other retired since 2020 (latest Jun 2026)
Nameplate—MWSummer — MW
Generators0in service
Net generation32GWh12 mo to Dec 2025
Capacity factor70%no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
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), primary-fuel 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) |
|---|---|---|---|
| 2010 | 37.2 | 80.2% | — |
| 2011 | 43.1 | 92.9% | — |
| 2012 | 62.7 | 134.7% | — |
| 2013 | 38.1 | 82.0% | — |
| 2014 | 31.4 | 67.7% | — |
| 2015 | 38.2 | 82.4% | — |
| 2016 | 39.4 | 84.6% | — |
| 2017 | 45.5 | 98.1% | — |
| 2018 | 44.9 | 96.7% | — |
| 2019 | 42.3 | 91.0% | — |
| 2020 | 29.7 | 63.8% | — |
| 2021 | 44.7 | 96.4% | — |
| 2022 | 13.7 | 29.4% | — |
| 2023 | 38 | 81.8% | — |
| 2024 | 37.6 | 80.7% | — |
| 2025 | 32.3 | 69.7% | — |
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 | All Other | ST | 5.3 | 5.3 | Jul 2009 | Retired Jun 2026 | — | coming soon |
Owner / operator
Operator: Montana-Dakota Utilities Co. 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.
| Glen Ullin Energy Center | 107 MW | 16.5 km |
| Bison 3 Wind Energy Center | 105 MW | 23.4 km |
| Bison 4 Wind Energy Center | 205 MW | 23.4 km |
| Bison 2 Wind Energy Center | 105 MW | 23.4 km |
| Bison I Wind Energy Center | 82 MW | 23.4 km |
| Sunflower Wind Project | 104 MW | 24.3 km |