St. Clair County, MI interconnection queue
3 interconnection applications are pending in St. Clair County, MI, requesting 555 MW of new generating capacity, as of 15 August 2026. 3 projects have been built here and 6 have been withdrawn since 2017.
Source: interconnection queues published by MISO. 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 St. Clair County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 3 | 555 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 3 | 1.5 GW | 25.0% |
| Still pending | 3 | 555 MW | 25.0% |
| Withdrawn | 6 | 920 MW | 50.0% |
| Suspended | 0 | — | 0.0% |
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 |
|---|---|---|---|---|---|
| Belle River - Fitz #2 345 kV Line Tap | Gas | 1.2 GW | completed | 2017-06 | MISO |
| FITZ | Solar | 290 MW | withdrawn | 2024-04 | MISO |
| ST. CLAIR | Solar | 220 MW | active | 2024-04 | MISO |
| FITZ | Solar | 200 MW | withdrawn | 2024-04 | MISO |
| Greenwood 345kV | Hybrid | 200 MW | withdrawn | 2020-06 | MISO |
| Carrigan 120kV Substation | Solar | 200 MW | completed | 2020-06 | MISO |
| Greenwood 120 kV | Solar | 195 MW | active | 2022-09 | MISO |
| BUNCE | Solar | 140 MW | active | 2022-09 | MISO |
| Greenwood 120 kV Substation | Solar | 100 MW | completed | 2019-04 | MISO |
| Fitz 120kV | Solar | 100 MW | withdrawn | 2020-06 | MISO |
| Lee - Menlo 120kV Line | Solar | 80 MW | withdrawn | 2017-06 | MISO |
| Carrigan 120kV Substation | Solar | 50 MW | withdrawn | 2020-06 | MISO |
How this county ranks
St. Clair County ranks #578 of 1,607 US counties by capacity currently queued, and #24 of 42 in Michigan.
Other Michigan counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Monroe County | 7 | 3.9 GW |
| Huron County | 16 | 3.6 GW |
| Livingston County | 6 | 2.3 GW |
| Branch County | 7 | 2.3 GW |
| Van Buren County | 11 | 2.3 GW |
| Washtenaw County | 7 | 2.2 GW |
| Saginaw County | 10 | 1.8 GW |
| Genesee County | 4 | 1.4 GW |
Go deeper on St. Clair 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 St. Clair County on the map County reports All of Michigan