# APECS Data Center Campus (Former GM Assembly Plant) > Proposed: a 800 MW data center in Rock County, Wisconsin, from the Kapwork Grow tracker (1 source). Sources and dates on every fact. Page: https://kapwork.com/grow/directory/datacenters/apecs-data-center-campus-former-gm-assembly-plant-wi-dc_2d56603b755f Markdown: https://kapwork.com/grow/directory/datacenters/apecs-data-center-campus-former-gm-assembly-plant-wi-dc_2d56603b755f.md Updated: Nov 3, 2026 Publisher: Kapwork Grow, a free directory of public records 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. (Kapwork Grow tracker record, merged from the sources listed here, Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Nov 2, 2026) ## Facts - **Operator:** Viridian Acquisitions LLC (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **Stage:** Proposed (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **Reported capacity:** 800 MW (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **Site area:** 250 acres (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Reported investment:** $8.00B (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Reported jobs:** 600 (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Announced:** 2025-11 (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **City:** Janesville (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **County:** Rock (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **State:** Wisconsin (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **Location precision:** Street address reported (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Community response:** Local opposition reported (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **AI workload:** Likely AI or machine-learning workload (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Aug 18, 2026) - **Facility type:** AI data center (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) ## What each source reports | Dataset | Reported name | Reported status | Reported MW | | --- | --- | --- | --- | | Compute Atlas | APECS Data Center Campus (Former GM Assembly Plant) | Proposed | 800 MW | ## Questions this page answers ### Is APECS Data Center Campus (Former GM Assembly Plant) under construction? No permit record shows it yet, so this page prints it as announced. Compute Atlas (Aug 18, 2026) reports it as proposed. ### Who is building APECS Data Center Campus (Former GM Assembly Plant)? Viridian Acquisitions LLC is the operator. No public record names the general contractor yet. It shows here the day one does. ### Which carriers serve APECS Data Center Campus (Former GM Assembly Plant)? No public record names them yet. They show here when a filing does. ### How do contractors on APECS Data Center Campus (Former GM Assembly Plant) get paid sooner? The owner pays the general contractor, and the general contractor pays its subcontractors. Once your customer approves your invoice, certify it with Kapwork. Funders compete to fund it, so you don't wait for the payment date. Free for businesses. Kapwork doesn't lend and doesn't contact your customer. ## Latest updates - **Nov 11, 2025:** [Reported as announced](https://www.wpr.org/news/janesville-data-center-abandoned-gm-site) - [Reported as announced](https://www.wpr.org/news/janesville-data-center-abandoned-gm-site). Reported for 2025-11. ## Related records - [Balloonist Red Cedar / Menomonie Data Center](https://kapwork.com/grow/directory/datacenters/balloonist-red-cedar-menomonie-data-center-wi-dc_f0b1e3c3ddca): Same state - [Cloverleaf Wrightstown Data Center Inquiry (Village of Wrightstown)](https://kapwork.com/grow/directory/datacenters/cloverleaf-wrightstown-data-center-inquiry-village-of-wrightstown-wi-dc_423b769164f5): Same state - [DPO Wisconsin Rapids AI Computing Facility](https://kapwork.com/grow/directory/datacenters/dpo-wisconsin-rapids-ai-computing-facility-wi-dc_ec075fa32379): Same state - [Epic Hosting Verona Data Center](https://kapwork.com/grow/directory/datacenters/epic-hosting-verona-data-center-wi-dc_1ec7ac31c898): Same state - [Menomonie Data Center Campus](https://kapwork.com/grow/directory/datacenters/menomonie-data-center-campus-wi-dc_95c4e5a3de83): Same state ## What this record does not show - This record is the Kapwork Grow tracker's merged view of a facility, from the tracker snapshot built 2026-11-02. 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. ## Sources - [Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)](https://www.wpr.org/news/janesville-data-center-abandoned-gm-site) · as of Aug 18, 2026 · record viridian-apecs-janesville-wi - [Wisconsin Public Radio (cited by Compute Atlas)](https://www.wpr.org/news/janesville-data-center-abandoned-gm-site) · as of Aug 18, 2026 - [Baxtel (cited by Compute Atlas)](https://baxtel.com/data-center/apecs-data-center-campus) · as of Aug 18, 2026 - [608 Scanner (cited by Compute Atlas)](https://608scanner.com/the-rock-county-data-center-fight-janesvilles-three-proposals-and-the-vote-that-could-decide-them/) · as of Aug 18, 2026 - [Kapwork Grow tracker record, merged from the sources listed here](https://kapwork.com/app/grow/datacenters/projects/apecs-data-center-campus-former-gm-assembly-plant-wi) · as of Nov 2, 2026 · record 49849004946783 ## Have an invoice your customer approved? Certify your approved invoices. Funders compete to fund them. Multiple offers. No notice of assignment. Free for businesses. - [Get offers](https://kapwork.com/app/register-originator?mode=express&flow=invoice_registration&source=growth_suite&intent=certify&return_to=%2Fapp%2Finvoices%2Fnew&entry_point=certify_public_directory) - [Talk to an expert](https://meetings.hubspot.com/kylemase/kapwork-intro-with-kyle-mauricio) ## Cite this page 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 Nov 3, 2026.