WattWatch

Michigan data center tracker

A data center is an electricity story before it is a building story. Every project below is tracked by the questions a customer of the same utility would ask: how much power has it asked for, who would supply it, what has been approved, and who is on the hook for the wires.

Where things stand

Projects tracked
16
Still live
12
Disclosed demand, live projects
3.24 GW
Under an approved contract
1.38 GW

Withdrawn and rejected projects are counted separately and their megawatts are excluded from the live figure — 4 of them, carrying 860 MW between them. Adding a cancelled proposal to a site under construction and calling the result Michigan’s data center demand is the most common error in this subject, and it always runs in the alarming direction.

8 of the 16 projects have no capacity figure on the public record at all. They are listed, and their megawatts are absent rather than estimated.

Why this count differs from every other count

Michigan’s data center trackers disagree wildly — two operating facilities in one dataset, forty-odd in another, thirty-plus proposed in a third. None of them is wrong. They are counting different things, and mostly not saying which. Here is what this page counts.

A project is included if it meets any of these

  • Disclosed or contracted electrical demand of 100 MW or more, the threshold Michigan's own approved large-load tariffs use; or
  • Covered by an MPSC special contract or large-load tariff case, whatever its size; or
  • A hyperscale-scale application on file with a Michigan municipality — a rezoning, special land use or site plan — where no MW figure has been disclosed.

Deliberately excluded

  • Commercial colocation and enterprise facilities below the threshold. Michigan has roughly forty to fifty of these; they are a different question and would swamp this one.
  • Sites named only in anonymous social media posts or in a developer's regional pipeline with no Michigan municipality attached.
  • Third-party water and emissions estimates. Only figures the developer or the municipality put on the record appear here.

The 100 MW threshold is not ours. It is the eligibility line in both of Michigan’s approved large-load frameworks, so this list tracks the loads the regulator itself has decided need separate rules. Full methodology.

Filter

Every tracked project

Ordered by how close each is to drawing power, then by size. Not by date — a withdrawn proposal filed last month is not more important than a site already under construction.

  • Dowagiac, Cass County · Hyperscale Data, Inc.

    340 MWannounced

    Roughly 30 MW is running today, in a 1972 manufacturing building converted from bitcoin mining. The company expects 70 MW within 20 months and has agreed to acquire a further 48.5 acres.

  • Gaines Township, Kent County · Switch, Inc.

    320 MWannounced

    Michigan's longest-running large data center campus, in the former Steelcase Pyramid. Further phases remain under development.

  • Stargate Michigan

    Under construction

    Saline Township, Washtenaw County · Related Digital, with Blackstone

    1,383 MWcontracted

    The project team and Governor Whitmer held a ceremony celebrating construction of the campus, by then already underway with more than 700 tradespeople on site, and announced a further $10 million to expand the Saline Recreation Center.

  • Van Buren Township, Wayne County · Panattoni Development

    1,000 MWannounced

    A development agreement was finalised.

  • Southfield, Oakland County · Metrobloks LLC

    100 MWreported estimate

    Approved by Southfield City Council.

  • Project Flex

    Application submitted

    Lyon Township, Oakland County · Verrus, operated by Sidewalk Infrastructure Partners

    No capacity figure on the record

    Kimley-Horn filed the fifth submission of the final site plan on the developer's behalf, revised to address the township consultants' comments on the third submission.

  • Microsoft Gaines Township site

    Application submitted

    Gaines Township, Kent County · Microsoft

    No capacity figure on the record

    A rezoning application is pending before the township.

  • Ypsilanti Township, with a second site proposed in Superior Township, Washtenaw County · University of Michigan with Los Alamos National Laboratory

    No capacity figure on the record

    A roughly 300,000 sq ft facility had been set to break ground in 2026.

  • Alterra Marshall site

    Pre-application

    Marshall, Calhoun County · Alterra Development

    No capacity figure on the record

    An application is anticipated but not yet on file.

  • Raeden Gibraltar site

    Paused or under moratorium

    Gibraltar, Wayne County · Raeden

    100 MWreported estimate

    Held by a local moratorium.

  • Buick City site

    Paused or under moratorium

    Flint, Genesee County · Hillwood and Sterling Group

    No capacity figure on the record

    Applications are pending; no approval has been granted.

  • Microsoft Lowell Township site

    Paused or under moratorium

    Lowell Township, Kent County · Franklin Partners

    No capacity figure on the record

    The mayor of Lowell has since described the project as dead, but no withdrawal is on the record.

  • Washington Township, Macomb County · Prologis

    760 MWreported estimate

    Withdrawn. No live application remains.

  • Augusta Township, Washtenaw County · Thor Equities, with Form8tion

    100 MWreported estimate

    Voters repealed the ordinance, 2,314 against to 269 in favour — 89.59% to 10.41% on the county’s certified canvass.

  • Project Ironwood

    Withdrawn or rejected

    Dundee and Milan Townships, Monroe County · Cloverleaf Infrastructure

    No capacity figure on the record

    Cloverleaf withdrew its pre-development agreement after sustained local opposition.

  • Howell Township site

    Withdrawn or rejected

    Howell Township, Livingston County

    No capacity figure on the record

    Withdrawn. Reporting linked the assembly to Meta; no company confirmed involvement on the record.

Every project in this table has been checked by a person against the sources cited on its page. Where a figure has no authoritative source, or the sources conflict, the project page says so rather than resolving it quietly.

What the status words mean

“Proposed” is doing far too much work in most coverage of this subject. A signed development agreement is not a permit; a conditional rezoning is not a groundbreaking. Eight states instead, each tied to something in a public record.

Operating
Drawing power and serving load, in whole or in part.
Under construction
Ground has been broken on the site.
Approved
The municipality has granted the approval sought. Construction may still wait on permits, a power agreement, or both.
Application submitted
A rezoning, special land use or site plan application is on file and scheduled for public hearing.
Pre-application
Land assembled, optioned or purchased, or a pre-development agreement signed. Nothing before a planning commission yet.
Early discussion
Named in reporting or in a public official's remarks. No application on file with the municipality.
Paused or under moratorium
Stopped by a local moratorium, an adverse vote that did not kill it, or a developer pause. Not dead.
Withdrawn or rejected
The applicant pulled it, or the municipality refused it and no application is live.

What Michigan regulators have actually approved

The recurring question is whether these projects land on everyone else’s bill. Michigan has approved specific machinery intended to stop that. Whether it goes far enough is being contested right now. Both halves belong here, in terms rather than adjectives.

Consumers EnergyU-21859

Order issued November 6, 2025

Amended the General Service Primary Demand tariff to set standard terms for very large customers, rather than negotiating each one privately.

Who it applies to
New customers with 100 MW or more at one site, or an aggregated 100 MW across sites under common ownership with at least 20 MW each.
Contract length
At least 15 years, renewing automatically in 5-year terms absent four years' notice.
Minimum billing demand
After any ramp-up, the customer pays for at least 80% of contracted demand whether or not it uses it.
Financial assurance
A letter of credit or cash deposit sufficient to cover the exit fee, posted up front.
Exit fee
Minimum billing demand multiplied by the months remaining, including infrastructure costs. Capacity may be cut up to 10% on four years' notice without penalty; deeper cuts are pro-rated or reviewed by the Commission.
Cost-shift test
Before serving a large-load customer, Consumers must file an ex parte application demonstrating costs are not being shifted onto other customers. A $100,000 administrative fee covers project evaluation.

DTE ElectricU-21990

Order issued December 18, 2025

Approved special contracts for electric service to the Saline Township data center, with conditions — a contract-by-contract approval rather than a general tariff.

Contracted demand
Roughly 1,383 MW.
Contract length
A power supply agreement of roughly 19 years, extendable by the customer for a further 20, plus a separate 15-year energy storage agreement.
Conditions imposed
Cost allocation and rate design proposals ensuring future large-load interconnection customers pay their own interconnection costs, plus an administrative fee for further large loads.

The Attorney General's motion to reopen and her separate petition for rehearing were both denied on 27 March 2026. On 17 April 2026 she filed a claim of appeal in the Michigan Court of Appeals, seeking to invalidate the approval as an unlawful ex parte order and to remand the matter for a contested case hearing. The proceeding is not closed.

The local pause

At least 52 Michigan communities had enacted temporary data center moratoriums as of June 29, 2026. Most run six months to a year. Michigan's Zoning Enabling Act forbids outright exclusionary zoning where a need is demonstrated, so these are pauses to write rules in, not bans. Source

A separate analysis of DTE Energy’s investor reporting put roughly 4.4 GW of data center demand in that utility’s pipeline as of February 27, 2026. An analysis of DTE Energy's investor reporting, covering DTE's pipeline rather than the whole state. It is not the sum of the disclosed capacities in this table and should not be reconciled against it. Source