- Combustion
- Operating
- Retired
- Other companies nearby
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
- Retired
- Other companies nearby
7 assets
7 assets. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Northwestern Corp
Power plant owner
As filed: NORTHWESTERN CORP
Key facts
Power plant owner · 3,616.3 MW- Capacity held
- 3,616.3MW
- Assets
- 7
- States
- IA, MT, ND, SD
- Registered in
- United States
- Parent
- No parent recordedNo parent recordedLike 48,120 of 50,273 companies here. Why
Gross output of plants with a stake
7 of 7 plantsOutputGross: each plant's whole output, whatever the stake. Equity share: each plant's output times the stake.Covers 7 of 7 plants with a stake: US plants with an EIA monthly series.1% of the output is from 3 plants recorded as wholly owned.Ownership as recorded today; each plant's output is its whole series. A plant's group is its technology; Unspecified fuel is EIA's "All Other", hydrogen, CHP with no fuel stated and plants with no technology on record.
- Gas
- Coal
Yearly totals
| Year | Gas | Coal | Total (MWh) |
|---|---|---|---|
| 2026 (part year) | 180,859 | 8,245,030 | 8,425,889 |
| 2025 | 558,821 | 15,167,163 | 15,725,984 |
| 2024 | 504,363 | 13,498,171 | 14,002,534 |
| 2023 | 587,019 | 15,898,884 | 16,485,903 |
| 2022 | 504,554 | 16,014,621 | 16,519,175 |
| 2021 | 314,934 | 15,563,092 | 15,878,026 |
| 2020 | 212,515 | 12,632,595 | 12,845,110 |
| 2019 | 273,578 | 19,632,017 | 19,905,595 |
| 2018 | 271,717 | 21,161,177 | 21,432,894 |
| 2017 | 262,923 | 20,470,703 | 20,733,626 |
| 2016 | 275,529 | 20,600,964 | 20,876,493 |
| 2015 | 435,307 | 22,493,632 | 22,928,939 |
| 2014 | 417,512 | 23,490,843 | 23,908,355 |
| 2013 | 459,865 | 21,331,153 | 21,791,018 |
| 2012 | 363,998 | 21,711,311 | 22,075,309 |
| 2011 | 329,579 | 22,816,265 | 23,145,844 |
| 2010 | 940 | 27,305,471 | 27,306,411 |
| 2009 | 1,071 | 22,735,169 | 22,736,240 |
| 2008 | 6,409 | 27,075,271 | 27,081,680 |
| 2007 | 6,104 | 25,948,116 | 25,954,220 |
| 2006 | 1,863 | 25,305,078 | 25,306,941 |
| 2005 | 284 | 26,087,363 | 26,087,647 |
| 2004 | 128 | 11,265,994 | 11,266,122 |
| 2003 | 356 | 25,202,766 | 25,203,122 |
| 2002 | 35 | 24,652,984 | 24,653,019 |
| 2001 | 8,381 | 26,346,634 | 26,355,015 |
Assets 7
Assets
7
Capacity
3,616 MW
- Coal: 3,244 MW, 4 assets
- Gas, combustion turbine: 372 MW, 3 assets
Owns 7 power plants
| Name. Sort by name, A to Z | Type. Sort by type, A to Z | Role. Sort by role, A to Z | MW, sorted descending. Sort by capacity, smallest first | State. Sort by state, A to Z | Share | Held by |
|---|---|---|---|---|---|---|
| Colstrip | Coal | Owns | 1,647.4 MW | US-MT | 10.6% | NORTHWESTERN CORP |
| George Neal South | Coal | Owns | 695.9 MW | US-IA | 8.7% | NORTHWESTERN CORP |
| Big Stone | Coal | Owns | 451 MW | US-SD | 23.4% | NORTHWESTERN CORP |
| Coyote | Coal | Owns | 450 MW | US-ND | 10.0% | NORTHWESTERN CORP |
| Dave Gates Generating Station | Gas, combustion turbine | Owns | 203.1 MW | US-MT | 100.0% | NORTHWESTERN CORP |
| Aberdeen CT | Gas, combustion turbine | Owns | 111 MW | US-SD | 100.0% | NORTHWESTERN CORP |
| Huron | Gas, combustion turbine | Owns | 57.9 MW | US-SD | 100.0% | NORTHWESTERN CORP |
Sources
- EIA-860M
- GEMGlobal Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
Sources 2
Registers
2
Reuse terms
- 1 Open license
- 1 Open license, with credit
Latest read
2026-10-30
From its recordsSourcesThe registers behind this company's assets, projects and RFPs; the company record itself is derived from them.
Sources
-
View at source →
EIA-860M ·
EIA-860M Preliminary Monthly Electric Generator Inventory
US federal work — public domain
Summary only: the source’s license keeps the full record at the source.
-
View at source →
GEM ·
Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses)
Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License. · license
In-file notice, About sheet of Global_Integrated_Power_September_2026_V2.xlsb (the owner's download, read 2026-10-26 with pyxlsb 1.0.10; decisions log 2026-10-26): "Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License. (See the CC license for attribution requirements if sharing or adapting the data set.)" and "Please note records with a “TZ ID” in the Other IDs (unit/phase) column were partially or fully sourced from the TransitionZero, Solar Asset Mapper, August 2025. Copyright © TransitionZero, Solar Asset Mapper, August 2025. Distributed under a Creative Commons Attribution-Non-Commercial 4.0 International License (CC BY-NC 4.0)." Before it was read: no licence prose on the dataset page (retrieved 2026-10-23), which gives only "The recommended citation is "Global Integrated Power Tracker, Global Energy Monitor, September 2026 release.""; GEM's download form records "Creative Commons Attribution 4.0 International (CC BY 4.0) — /creative-commons-license" (https://api.globalenergymonitor.org/static/gem-download-form.bundle.js, sha256 e5ecbeab…905e5b, retrieved 2026-10-23).
Summary only: the source’s license keeps the full record at the source.
Around this company
Nearby 2
within 15 miProjects
2
within 15 mi
Nearest
0.0 mi
Aberdeen CT
All 2NearbyShowing all 2 nearby projects.
| Status | Name. Sort by name, A to Z | Type | MW. Sort by capacity, largest first | Distance, sorted ascending. Sort by distance, farthest first | Nearest asset |
|---|---|---|---|---|---|
| Under construction | Aberdeen CT | Gas, combustion turbine | 32 MW | 0.0 mi away | nearest: Aberdeen CT |
| Postponed | Opportunity Solar Generation and BESS | Solar + storage | 400 MW | 3.2 mi away | nearest: Dave Gates Generating Station |
Sources EIA-860M