FieldProspects

Grant County, Wisconsin

Grant County, Wisconsin has 20 power projects in the FieldProspects database: 11 operating plants totaling 453 MW and 9 planned projects totaling 1 GW. No data center record lists the county. Solar leads with 804 MW across 8 projects. 7 planned projects are past their listed in-service date.

Data as of Grid region: Midcontinent ISO (MISO)Refreshed monthly
20
power projects, planned and operating
1GW
planned generation, 9 projects
453MW
operating generation, 11 projects
7
planned projects past their listed in-service date
Map

Grant County and its neighbors

Counties shaded by data center MW on record, planned to operating. 3 of its 4 neighboring counties have pages of their own. The rest are in the member database.

Richland no data centers Crawford Grant no data centers Lafayette no data centers Iowa no data centers
no data center MWunder 100 MW100 to 1,000 MW1,000 to 5,000 MW5,000 to 15,000 MW15,000 MW or more no page yet

Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers

Headline finding
2.2times

more planned than operating generation in Grant County. 9 projects in the queue would add 1 GW to the 453 MW operating today, and 7 of them are past their listed in-service date.

Operating generation453 MW
Planned generation1 GW

Technology mix

20 projects, 1.5 GW planned and operating

Solar804 MW8 projects, 55%
Wind533.8 MW5 projects, 36%
Battery Storage100 MW1 project, 7%
2 other technologies32.4 MW6 projects, 2%
Which companies own these 20 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

11 plants operate inside Grant County, 453 MW. The queue adds 1 GW across 9 projects, and 7 of them are past their listed in-service date.

Figure 1

Operating and planned generation by technology

MW in Grant County

OperatingPlanned
SolarOperating 254 MW 4 projects
SolarPlanned 550 MW 4 projects
WindOperating 91.6 MW 1 project
WindPlanned 442.2 MW 4 projects
Battery StorageOperating 100 MW 1 project
TransmissionPlanned 25 MW 1 project
OilOperating 7.4 MW 5 projects
View as table
TechnologyStatusProjectsMW
SolarOperating4254
SolarPlanned4550
WindOperating191.6
WindPlanned4442.2
Battery StorageOperating1100
TransmissionPlanned125
OilOperating57.4
Operating: 453 MW. Planned: 1 GW. If every planned project is built, county generation would reach 1.5 GW.
Source. FieldProspects database: ISO/RTO interconnection queues, EIA-860M and public data center filings, data as of October 8, 2026.
Figure 2

Planned generation by listed in-service year

MW. Years before 2026 are past due.

Past dueDue 2026 or later
0100200300 Snapshot year 300 2020 100 2021 2022 275 2023 95 2024 2025 2026 67 2027 180 2028
View as table
YearPlanned projectsMW
20202300
20211100
202200
20233275
2024195
202500
202600
2027167.2
20281180
7 projects, 770 MW, were due before 2026

Grant County against its neighbors

None of the 3 neighboring counties with a page lists a data center record. Iowa County has the most operating generation among them, 330 MW.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Grant County this page 0
0
453
1,017 0x
Iowa County 0
0
330
439 0x
Lafayette County 0
0
100
300 0x
Richland County 0
0
56
50 0x

Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.

4 counties shown

What changed since June 4, 2026

1 project in Grant County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.

Open the change feed
1
added to a queue, 25 MW
0
came online, started construction or signed an interconnection agreement, 0 MW
0
cancelled, dropped or went inactive, 0 MW
0
slipped their in-service date, 0 MW

Every change in Grant County

Project, what changed, technology, MW and the dates that moved, for all 1 change.

Members only
County: Grant County, WISince June 4, 2026 1 change
ProjectChangeTechnologyMWPrevious dateNew date
1 change behind this preview

Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.

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Every record in Grant County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 20 records. Filter, sort and export to Excel.

Members only
County: Grant County, WIStatus: all except cancelledSort: MW, largest first 20 records
Project or campusDeveloperStatusMWYearContacts
20 records and 1.5 GW behind this preview

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