interXdata

Wisconsin Interconnection Projects

interXdata tracks 1,146 interconnection projects in Wisconsin representing 108,598 MW of requested capacity. The dominant technology by capacity is Gas. The most active counties are Dane, Wood, Columbia.

1,146Total projects
39Active
844Operational
247Withdrawn
108,598 MWRequested capacity
8,309 MWActive capacity

Technology mix

TechnologyProjectsRequested capacity
Gas23037,915 MW
Solar27324,606 MW
Other43021,954 MW
Wind11412,005 MW
Battery676,681 MW
Coal115,096 MW
Nuclear7171 MW
Diesel8104 MW
Solar+Battery150 MW
Hydro517 MW

Counties

CountyProjectsRequested capacity
Dane744,005 MW
Wood592,881 MW
Columbia456,887 MW
Portage446,612 MW
Outagamie423,969 MW
Rock385,435 MW
Chippewa38745 MW
Marinette34397 MW
Milwaukee346,294 MW
Marathon313,074 MW
Kenosha305,978 MW
Manitowoc273,189 MW
Jefferson261,382 MW
Polk25546 MW
Fond Du Lac242,888 MW
Grant242,032 MW
Juneau23879 MW
Barron19648 MW
Walworth192,910 MW
Brown183,790 MW
Rusk17452 MW
Sheboygan165,812 MW
Racine161,640 MW
Lincoln1545 MW
Trempealeau15584 MW
Dodge15881 MW
Calumet145,057 MW
Burnett14114 MW
Douglas141,174 MW
Lafayette121,140 MW
Eau Claire122,067 MW
Oneida1270 MW
Winnebago123,109 MW
Waushara121,239 MW
Washington11408 MW
Dunn11615 MW
Ozaukee101,727 MW
Sawyer9254 MW
Florence822 MW
Adams8273 MW

Largest projects

ProjectQueue IDTechnologyCapacityStatusLocation
MISO Queue Project G166 — Other in Sheboygan, WisconsinG166Other2,400.0 MWwithdrawnSheboygan, Wisconsin
MISO Queue Project G051 — Coal in Milwaukee, WisconsinG051Coal1,300.0 MWoperationalMilwaukee, Wisconsin
Red Oak Ridge Energy CenterE0012Gas1,211.2 MWactiveKenosha, Wisconsin
MISO Queue Project E0016 — Gas in Calumet, WisconsinE0016Gas1,211.2 MWactiveCalumet, Wisconsin
Other_J4165Gas1,203.0 MWoperationalKenosha, Wisconsin
North Madison 345/138 kVJ4164Gas1,203.0 MWoperationalDane, Wisconsin
MISO Queue Project G167 — Other in Kenosha, WisconsinG167Other1,200.0 MWwithdrawnKenosha, Wisconsin
MISO Queue Project J435 — Gas in Eau Claire, WisconsinJ435Gas1,185.0 MWwithdrawnEau Claire, Wisconsin
Vista Sands Solar67551_VISTASolar1,182.0 MWactivePortage, Wisconsin
Elm RoadR1053Gas1,138.0 MWoperationalMilwaukee, Wisconsin
MISO Queue Project G052 — Other in Sheboygan, WisconsinG052Other1,000.0 MWwithdrawnSheboygan, Wisconsin
Sugar Creek 345 kVJ4116Gas950.0 MWoperationalWalworth, Wisconsin
MISO Queue Project H004 — Gas in Eau Claire, WisconsinH004Gas860.0 MWwithdrawnEau Claire, Wisconsin
MISO Queue Project J336 — Gas in Calumet, WisconsinJ336Gas845.0 MWwithdrawnCalumet, Wisconsin
MISO Queue Project J338 — Gas in Winnebago, WisconsinJ338Gas845.0 MWwithdrawnWinnebago, Wisconsin
MISO Queue Project J560 — Gas in Douglas, WisconsinJ560Gas835.0 MWwithdrawnDouglas, Wisconsin
MISO Queue Project G068 — Gas in Racine, WisconsinG068Gas800.0 MWwithdrawnRacine, Wisconsin
MISO Queue Project G062 — Other in Wood, WisconsinG062Other755.0 MWwithdrawnWood, Wisconsin
MISO Queue Project G048 — Other in Fond Du Lac, WisconsinG048Other725.0 MWwithdrawnFond Du Lac, Wisconsin
MISO Queue Project J390 — Gas in Rock, WisconsinJ390Gas711.0 MWoperationalRock, Wisconsin
Pleasant Prairie - Arcadian 345.0kVJ3330Gas705.0 MWwithdrawnKenosha, Wisconsin
Elm Road Generating Station56068_1Other701.3 MWoperationalMilwaukee, Wisconsin
Elm Road Generating Station56068_2Other701.3 MWoperationalMilwaukee, Wisconsin
MISO Queue Project J248 — Gas in Outagamie, WisconsinJ248Gas675.0 MWwithdrawnOutagamie, Wisconsin
Forest JunctionJ4014Gas650.0 MWoperationalCalumet, Wisconsin
Point Beach Nuclear Plant4046_2Other643.0 MWoperationalManitowoc, Wisconsin
Point Beach Nuclear Plant4046_1Other643.0 MWoperationalManitowoc, Wisconsin
MISO Queue Project G086 — Other in Brown, WisconsinG086Other600.0 MWwithdrawnBrown, Wisconsin
MISO Queue Project G044 — Gas in Outagamie, WisconsinG044Gas600.0 MWoperationalOutagamie, Wisconsin
MISO Queue Project G524 — Gas in Brown, WisconsinG524Gas600.0 MWwithdrawnBrown, Wisconsin

Top developers in Wisconsin

Developer (canonical)ProjectsCapacity
Invenergy22,422 MW
Wisconsin Power and Light Company (WPL)2910 MW

Recent material changes

ObservedProjectFieldOldNew
2026-10-02Portage Solar, LLCproposed_online_date2027-06-012027-07-01
2026-10-02Edgewaterproposed_online_date2026-12-012027-04-01
2026-10-02Gilmanproposed_online_date2026-12-012026-11-01
2026-10-02Spoonerproposed_online_date2026-11-012026-10-01
2026-10-02Mondoviproposed_online_date2026-11-012026-10-01
2026-10-02Clark Solar-Longwoodproposed_online_date2026-11-012026-10-01
2026-09-24Columbia - Rockdale 345.0kVphaseStudy Not StartedPhase 2
2026-09-24Saukville (Cedarsauk)phaseStudy Not StartedPhase 2
2026-09-24BARRON - WASHCO 161.0kVphaseStudy Not StartedPhase 2
2026-09-24FTZGERLDphaseStudy Not StartedPhase 2
2026-09-24Pleasant Prairie - Arcadian 345.0kVphaseStudy Not StartedPhase 2
2026-09-24Stratford - McMillan 115.0kVphaseStudy Not StartedPhase 2

Explore related data

Source last checked2026-07-31
Data last materially changed2026-10-11
Page data generated2026-10-11

Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned); Lawrence Berkeley National Laboratory — Queued Up interconnection dataset; MISO — generator interconnection queue; PJM — new-services interconnection queue. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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