Yellowstone County, MT interconnection queue
6 interconnection applications are pending in Yellowstone County, MT, requesting 1.2 GW of new generating capacity, as of 15 August 2026. 4 projects have been built here and 19 have been withdrawn since 2001.
Source: interconnection queues published by NWMT. Parsed and normalised by Watt Street. Data as of 15 August 2026. A queued project is a request, not a commitment.
What is waiting in Yellowstone County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 4 | 900 MW |
| Gas | 1 | 175 MW |
| Battery | 1 | 100 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 4 | 139 MW | 12.9% |
| Still pending | 6 | 1.2 GW | 19.4% |
| Withdrawn | 19 | 2.7 GW | 61.3% |
| Suspended | 2 | — | 6.5% |
Withdrawal is the ordinary outcome of an interconnection application nationally, not a sign of a problem in this county. Most withdrawals are a developer testing a site and moving on.
The largest projects on file
| Project | Fuel | Capacity | Status | Filed | Queue |
|---|---|---|---|---|---|
| 14 | Coal | 700 MW | withdrawn | 2001-08 | NWMT |
| 390 | Solar | 500 MW | active | 2020-08 | NWMT |
| 93 | Wind | 450 MW | withdrawn | 2008-06 | NWMT |
| 311 | Solar | 300 MW | active | 2017-02 | NWMT |
| 207 | Solar | 250 MW | withdrawn | 2015-07 | NWMT |
| 324 | Solar | 200 MW | withdrawn | 2017-07 | NWMT |
| 370 | Gas | 175 MW | withdrawn | 2019-11 | NWMT |
| 378 | Gas | 175 MW | active | 2020-05 | NWMT |
| 392 | Gas | 168 MW | withdrawn | 2020-09 | NWMT |
| 387 | Solar | 160 MW | withdrawn | 2020-07 | NWMT |
| 321 | Solar | 150 MW | withdrawn | 2017-06 | NWMT |
| 446 | Solar | 150 MW | withdrawn | 2023-07 | NWMT |
| 455 | Battery | 100 MW | active | 2024-01 | NWMT |
| 303 | Solar | 80 MW | completed | 2016-11 | NWMT |
| 309 | Solar | 80 MW | active | 2016-12 | NWMT |
How this county ranks
Yellowstone County ranks #333 of 1,607 US counties by capacity currently queued, and #4 of 29 in Montana.
Other Montana counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Wheatland County | 8 | 3.2 GW |
| Rosebud County | 5 | 2.9 GW |
| Meagher County | 4 | 1.5 GW |
| Big Horn County | 3 | 608 MW |
| Stillwater County | 4 | 595 MW |
| Broadwater County | 2 | 160 MW |
| Cascade County | 1 | 70 MW |
| Lewis and Clark County | 3 | 19 MW |
Go deeper on Yellowstone County
The interactive map plots every one of these applications, and a generated county report puts them in a sourced PDF with the date each figure was true on every page.
Open Yellowstone County on the map County reports All of Montana