NWMT interconnection queue
33 interconnection requests are active in NWMT, totalling 7.1 GW, as of 15 August 2026. Of the 448 requests ever filed here, 71 were built and 328 were withdrawn — a build rate of 17.8% on decided applications.
Active requests
33
of 448 ever filed
Capacity queued
7.1 GW
requested, not committed
Built vs decided
17.8%
71 built, 328 withdrawn
Median wait so far
3.9 yr
for requests still active
Median time to build
1.2 yr
request to commercial operation
Source: the NWMT interconnection queue as published by the transmission provider, parsed and normalised by Watt Street. Data as of 15 August 2026. Wait times are medians over requests that carry a measured date.
What is queued in NWMT, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Wind | 9 | 4.2 GW |
| Solar | 13 | 2.3 GW |
| Gas | 7 | 494 MW |
| Battery | 1 | 100 MW |
| Hydro | 3 | 83 MW |
Where NWMT’s queue sits
| State | Applications | Capacity pending |
|---|---|---|
| Montana | 429 | 7.1 GW |
| South Dakota | 17 | 8 MW |
Largest active requests
| Project | Fuel | Capacity | County | State | Filed |
|---|---|---|---|---|---|
| 435 | Solar | 800 MW | Rosebud County | MT | 2022-11 |
| 356 | Wind | 750 MW | Rosebud County | MT | 2018-10 |
| 357 | Wind | 750 MW | Rosebud County | MT | 2018-10 |
| 418 | Wind | 750 MW | Wheatland County | MT | 2022-01 |
| 361 | Wind | 600 MW | Wheatland County | MT | 2019-03 |
| 390 | Solar | 500 MW | Yellowstone County | MT | 2020-08 |
| 408 | Wind | 326 MW | Wheatland County | MT | 2021-02 |
| 300 | Wind | 315 MW | Stillwater County | MT | 2016-07 |
| 311 | Solar | 300 MW | Yellowstone County | MT | 2017-02 |
| 406 | Wind | 300 MW | Rosebud County | MT | 2021-02 |
| 407 | Wind | 300 MW | Rosebud County | MT | 2021-02 |
| 419 | Solar | 300 MW | Big Horn County | MT | 2022-02 |
| 378 | Gas | 175 MW | Yellowstone County | MT | 2020-05 |
| 464 | Gas | 150 MW | Broadwater County | MT | 2024-06 |
| 465 | Gas | 150 MW | Stillwater County | MT | 2024-06 |