Thunder Spirit Wind, LLC
Adams County, North Dakota · EIA plant ID 58965 · Operator: Montana-Dakota Utilities Co
Nameplate156MWSummer 156 MW
Generators2in service
Net generation568GWh12 mo to Dec 2025
Capacity factor42%wind units, summer MW
Heat rate—thermal plants only
First online2015
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) |
|---|---|---|---|
| 2015 | 10.1 | 12.6% | — |
| 2016 | 428 | 45.3% | — |
| 2017 | 428.4 | 45.5% | — |
| 2018 | 407.7 | 38.9% | — |
| 2019 | 547.6 | 40.2% | — |
| 2020 | 600.1 | 43.9% | — |
| 2021 | 556 | 40.8% | — |
| 2022 | 577 | 42.4% | — |
| 2023 | 487.7 | 35.8% | — |
| 2024 | 522.6 | 38.3% | — |
| 2025 | 568.3 | 41.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Onshore Wind Turbine | WT | 48 | 48 | Oct 2018 | Operating | — | nordex N117/3000 |
| THNDR | Onshore Wind Turbine | WT | 107.5 | 107.5 | Dec 2015 | Operating | — | nordex N100/2500 |
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).
| Montana-Dakota Utilities Co | 100.0% | 156 MW |
Nearby plants
Within 80 km.
| Brady II Wind Energy Center | 150 MW | 62.1 km |
| Brady Wind Energy Center | 150 MW | 65.4 km |