APECS Data Center Campus (Former GM Assembly Plant)
Viridian Acquisitions LLC has proposed a 800 MW data center in Rock County, Wisconsin (proposed). One source reports this facility in the Kapwork Grow tracker.
- Capacity
- 800 MW
- Investment
- $8B
- Site
- 250 acres
- Reported jobs
- 600
Who's on this build
Named in the cited sources. No source reports who builds it.
Operator
Viridian Acquisitions LLC
Timeline
Dates as reported. Not a bid calendar. A planned date is not evidence that work occurred.
- Today
Proposed
Last material change Sep 24, 2026.
- 10 mo ago
Event date: · First observed: Not reported
- 10 mo ago
Announced
Reported updates without an event date
Reported for 2025-11.
Event date: Not reported · First observed: Not reported
Record quality
- Datasets
- 1
- Location
- Street address reported
- Summary
- From published records
- Source as of
- Last material change
Site and infrastructure
CA Compute AtlasKW Kapwork Grow tracker record
Status
- Operator
- Viridian Acquisitions LLC
- Stage
- Proposed
- Facility type
- AI data center
Scale
- Reported capacity
- 800 MW
- Reported investment
- $8B
- Site area
- 250 acres
- Reported jobs
- 600
Reported dates
- Announced
- 2025-11
Site
- City
- Janesville
- County
- Rock
- State
- Wisconsin
- Location precision
- Street address reported
- Community response
- Local opposition reported
Power and cooling
- AI workload
- Likely AI or machine-learning workload
Sources, method and limits
Show 4 sourcesHide
What each source reports
| Dataset | Reported name | Reported status | Reported MW |
|---|---|---|---|
| Compute Atlas | APECS Data Center Campus (Former GM Assembly Plant) | Proposed | 800 MW |
Sources and evidence
- CACompute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of: Aug 18, 2026 · Record: viridian-apecs-janesville-wi
- CAWisconsin Public Radio (cited by Compute Atlas)As of: Aug 18, 2026
- CABaxtel (cited by Compute Atlas)As of: Aug 18, 2026
- CA608 Scanner (cited by Compute Atlas)As of: Aug 18, 2026
- KWKapwork Grow tracker record, merged from the sources listed here (free account)As of: Sep 23, 2026 · Record: 49849004946783
Limitations and interpretation
- This record is the Kapwork Grow tracker's merged view of a facility, from the tracker snapshot built 2026-09-23. Facts tagged KW are the tracker's resolved values; the per-source rows it was merged from are listed under Sources and on the tracker record.
- Sources on this record: Compute Atlas: Kubiak, E. (2026). Compute Atlas [Data set]. https://doi.org/10.5281/zenodo.22284476 (CC BY 4.0). Every source is licensed for commercial use with attribution.
- An announced or permitted build is not a contract, an open bid or a purchase order.
- Capacity figures are as reported by the cited sources and may describe planned rather than energised capacity.
Cite or correct this record
Kapwork Grow, “APECS Data Center Campus (Former GM Assembly Plant)”, https://kapwork.com/grow/directory/datacenters/apecs-data-center-campus-former-gm-assembly-plant-wi-dc_2d56603b755f, materially updated Sep 24, 2026.
Report an error in this record and we will check it against the cited sources.
An announced or permitted build is not a contract, an open bid or a purchase order. Capacity and dates are as reported by the cited sources. “Not reported” means missing information, not zero. Completed and withdrawn records can remain available as historical records.
More builds
Kapwork Grow
Every data center build in the directory, in one place.
Search by company, place or trade.