Data-center tracker · Project · Wisconsin

GM/JATCO site data center (Viridian)

Viridian · Janesville, Rock County, WI

Record updated Sep 29, 2026 · Sources checked on the dates listed below

Status: cancelled
Developer: Viridian
Location: Janesville, Rock County, WI
Power (MW): 800 MWProposed
Land (acres): Not reported
Investment: $8BProposed
Water: Not reported
Power utility: Not reported
Local signal: Opposed

Upcoming

As of the record date. Confirm times with the host body before attending.

Nov 3, 2026Voter-approval initiative for GM/JATCO site >$450M

Ballot measures

Require Voter Approval for Development of GM/JATCO Site Exceeding $450 Million Initiative (Janesville, WI) · Election Nov 3, 2026 · on the ballot
Require voter approval before the city may lease, sell, transfer, or approve development of the undeveloped GM/JATCO site if the total project costs exceed $450 million

Local organizing

No Janesville Data Center

Timeline

Jun 2026Letter of intent expired; proposal dropped

Sources

Ballotpedia: Janesville GM/JATCO initiative ↗ · as of Sep 29, 2026

Compiled from public records and reporting. Values a source did not state are marked “not reported”. Record ID wi-janesville-viridian-gm-jatco. Back to the tracker.