| Facility Name | City | State | CO2 equivalent emissions (mt) ![]() | Percent of total company emissions | Split * | EJ Minority % | EJ Poor % | Toxic 100 Air score |
|---|---|---|---|---|---|---|---|---|
| Dave Gates Generating Station | Anaconda | MT | 330,090 | 75.95% | 9.1% | 20.5% | ||
| Huron | HURON | SD | 44,092 | 10.14% | 31.6% | 10.2% | ||
| NORTHWESTERN ENERGY/GTS | BUTTE | MT | 26,289 | 6.05% | ** | ** | ||
| Aberdeen Generating Station | Aberdeen | SD | 22,998 | 5.29% | 16.4% | 11.1% | ||
| NorthWestern Energy, SD LDC | Butte | MT | 7,329 | 1.69% | ** | ** | ||
| NorthWestern Energy NE LDC | Butte | MT | 3,835 | 0.88% | ** | ** |
For more information on the data, see the technical notes.
* Split: if 50% appears in this column, then the facility's emissions have been split among two 50/50% ownership parent companies.