Wisconsin interconnection queue
70 interconnection applications are pending in Wisconsin, requesting 14.5 GW of new generating capacity across 18 counties, as of 15 August 2026. That places Wisconsin #31 of 47 states by capacity queued.
Pending applications
70
of 248 ever filed
Capacity queued
14.5 GW
requested, not committed
Already built
9.5 GW
62 connected
Built vs decided
34.8%
116 withdrawn
Counties in the queue
18
with five or more filings
Large load requested
none recorded
0 requests
Source: the interconnection queues of every transmission provider operating in Wisconsin. Parsed and normalised by Watt Street. Data as of 15 August 2026.
Which queues serve Wisconsin
What is waiting in Wisconsin, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 41 | 6.7 GW |
| Gas | 15 | 6.5 GW |
| Wind | 5 | 760 MW |
| Unknown | 7 | 357 MW |
| Hybrid | 2 | 180 MW |
Counties with the most capacity queued
| County | Pending | Capacity queued | Already built |
|---|---|---|---|
| Kenosha County | 6 | 1.9 GW | 350 MW |
| Walworth County | 4 | 1.6 GW | 0 MW |
| Portage County | 5 | 1.6 GW | 398 MW |
| Dane County | 3 | 1.3 GW | 950 MW |
| Columbia County | 6 | 1.3 GW | 522 MW |
| Fond du Lac County | 2 | 625 MW | 0 MW |
| Rock County | 5 | 510 MW | 719 MW |
| Waushara County | 4 | 330 MW | 99 MW |
| Barron County | 3 | 295 MW | 200 MW |
| Marathon County | 2 | 270 MW | 99 MW |
| Wood County | 2 | 250 MW | 300 MW |
| Sheboygan County | 2 | 250 MW | 225 MW |
| Grant County | 2 | 205 MW | 345 MW |
| Clark County | 1 | 190 MW | 0 MW |
| Green County | 2 | 185 MW | 150 MW |
| Jefferson County | 2 | 180 MW | 224 MW |
| Lafayette County | 1 | 98 MW | 300 MW |
| St. Croix County | 0 | 0 MW | 100 MW |
Data centre campuses recorded in Wisconsin
| Campus | Operator | Reported demand |
|---|---|---|
| Microsoft Fairwater Wisconsin | Microsoft | 369 MW |
A campus is tagged as a data centre by our classification, not by the operator’s own statement. 44 of the 72 campuses we hold carry coordinates, so only those can be mapped.
Wisconsin on the map
Every application above is plotted, searchable and clickable.