# Alterra Marshall Technology & Energy Center > Proposed: a 1400 MW data center in Calhoun County, Michigan, from the Kapwork Grow tracker (2 sources). Sources and dates on every fact. Page: https://kapwork.com/grow/directory/datacenters/alterra-marshall-technology-energy-center-mi-dc_28289b256346 Markdown: https://kapwork.com/grow/directory/datacenters/alterra-marshall-technology-energy-center-mi-dc_28289b256346.md Updated: Nov 3, 2026 Publisher: Kapwork Grow, a free directory of public records Alterra Development has proposed a 1400 MW data center in Calhoun County, Michigan (proposed). 2 sources report 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), Server Country project record (CC BY 4.0), as of Nov 2, 2026) ## Facts - **Operator:** Alterra Development (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), Server Country project record (CC BY 4.0), as of Sep 24, 2026) - **Stage:** Proposed (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Sep 9, 2026) - **Reported capacity:** 1400 MW (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), as of Sep 9, 2026) - **Capacity as the sources range:** 1400 to 1500 MW (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), Server Country project record (CC BY 4.0), as of Sep 24, 2026) - **Site area:** 270 acres (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Announced:** Dec 18, 2025 (Server Country project record (CC BY 4.0), as of Sep 24, 2026) - **City:** Marshall (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), Server Country project record (CC BY 4.0), as of Sep 24, 2026) - **County:** Calhoun (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), Server Country project record (CC BY 4.0), as of Sep 24, 2026) - **State:** Michigan (Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0), Server Country project record (CC BY 4.0), as of Sep 24, 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) - **Power source:** Mixed sources (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Cooling:** Closed loop (Kapwork Grow tracker record, merged from the sources listed here, as of Nov 2, 2026) - **Facility type:** Enterprise (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 | Alterra Marshall Technology & Energy Center | Proposed | 1400 MW | | Server Country | Alterra Marshall Technology Center | Suspended | 1500 MW | ## Questions this page answers ### Is Alterra Marshall Technology & Energy Center under construction? No permit record shows it yet, so this page prints it as announced. Compute Atlas (Sep 9, 2026) reports it as proposed. The sources disagree: Server Country reports suspended. ### Who is building Alterra Marshall Technology & Energy Center? Alterra Development is the operator. No public record names the general contractor yet. It shows here the day one does. ### Which carriers serve Alterra Marshall Technology & Energy Center? No public record names them yet. They show here when a filing does. ### How do contractors on Alterra Marshall Technology & Energy Center 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 - **Dec 18, 2025:** [Reported as announced](https://servercountry.org/data/projects/) ## Related records - [Buick City Data Center](https://kapwork.com/grow/directory/datacenters/buick-city-data-center-mi-dc_b3eddcdaf553): Same state - [GenH Morley Dam Data Services Facility](https://kapwork.com/grow/directory/datacenters/genh-morley-dam-data-services-facility-mi-dc_dc781ac47bfe): Same state - [Gibraltar Data Center (former McLouth Steel site)](https://kapwork.com/grow/directory/datacenters/gibraltar-data-center-former-mclouth-steel-site-mi-dc_8d82d876e55a): Same state - [Hyperscale Data Michigan Campus](https://kapwork.com/grow/directory/datacenters/hyperscale-data-michigan-campus-mi-dc_b8a83504a571): Same state - [K.I. Sawyer Data Center (SAGE building / Greenfield Campus)](https://kapwork.com/grow/directory/datacenters/k-i-sawyer-data-center-sage-building-greenfield-campus-mi-dc_3ddb22b04e10): 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) · Server Country, https://servercountry.org/data/ (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://wwmt.com/news/local/data-center-gas-generation-plant-proposed-in-marshall-alterra-development-calhoun-county-energy-electricity-water) · as of Sep 9, 2026 · record alterra-development-marshall-mi - [WWMT (cited by Compute Atlas)](https://wwmt.com/news/local/data-center-gas-generation-plant-proposed-in-marshall-alterra-development-calhoun-county-energy-electricity-water) · as of Aug 8, 2026 - [Ad-Visor & Chronicle (Marshall Advisor) (cited by Compute Atlas)](https://marshalladvisor.com/articles/news/data-center-being-proposed-in-marshall-begins-due-dilligence-period-with-city/) · as of Aug 8, 2026 - [WWMT (cited by Compute Atlas)](https://wwmt.com/news/local/data-centers-michigan-dowagiac-marshall-proposals-track-questions-answers-microsoft-hyperscale-alterra-ai-water-resources-noise-meetings-wwmt) · as of Sep 9, 2026 - [ARC West Michigan (cited by Compute Atlas)](https://arcwestmichigan.com/news/local/marshall-data-center-proposal-stuart-lake-brooks-nature-area-gas-generation-plant-energy-scott-wolfersberger-calhoun-county-west-michigan) · as of Aug 8, 2026 - [WWMT Newschannel 3 (cited by Compute Atlas)](https://wwmt.com/news/local/story/data-center-gas-generation-plant-proposed-in-marshall-alterra-development-calhoun-county-energy-electricity-water) · as of Sep 9, 2026 - [WWMT Newschannel 3 (cited by Compute Atlas)](https://wwmt.com/news/local/marshall-data-center-moratorium-delays-development-one-year-alterra-brooks-industrial-park-acres-wetland-lake-energy-environment-calhoun-county-west-michigan) · as of Sep 9, 2026 - [Server Country project record (CC BY 4.0)](https://servercountry.org/data/projects/) · as of Sep 24, 2026 · record 0725 - [Kapwork Grow tracker record, merged from the sources listed here](https://kapwork.com/app/grow/datacenters/projects/alterra-marshall-technology-energy-center-mi) · as of Nov 2, 2026 · record 44154866721606 ## 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, "Alterra Marshall Technology & Energy Center", https://kapwork.com/grow/directory/datacenters/alterra-marshall-technology-energy-center-mi-dc_28289b256346, materially updated Nov 3, 2026.