Compute Institute
Ratings for the physical buildout of AI
Microsoft Fairwater (Mount Pleasant)

Microsoft Fairwater (Mount Pleasant)

Energized
Confirmed

Jurisdiction: US — Rest of US (composite)

315-acre Fairwater campus, Mount Pleasant, Racine County, Wisconsin; second same-scale datacenter and further $13.3bn expansion proposed on adjacent sites

Capacity
GPUs (est.)
Capex
$7.3B
Announced
Target operational

Delivery health score

81.3 /100
81.3/100

Methodology prs-v0.1 · computed · trigger: manual

Schedule

90 /100
90/100

Regulatory

76 /100
76/100

Infrastructure

70 /100
70/100

Capital

90 /100
90/100

Why this score — factor breakdown

Each factor below contributed to the current score. Contributions are rubric weights from methodology prs-v0.1; every factor cites the record it is derived from.

Dimension
Factor
Contribution
Cites
Narrative
Capital capital commitment +50 Microsoft (investor) investor role committed $7,300,000,000 (coverage 100% of $7,300,000,000 capex).
Infrastructure baseline 70 Microsoft Fairwater (Mount Pleasant) No-adverse-evidence infrastructure baseline (disclosed config, scoring.prs.baselines).
Capital baseline 40 Microsoft Fairwater (Mount Pleasant) Capital base before committed-capital evidence (announcement-only anchor region, §B.2.4).
Regulatory baseline 70 Microsoft Fairwater (Mount Pleasant) No-adverse-evidence regulatory baseline (disclosed config, scoring.prs.baselines).
Regulatory permit granted +6 Utility Approval Permitting milestone "Utility Approval" achieved on 2026-01-31.
Schedule baseline 80 Microsoft Fairwater (Mount Pleasant) No-adverse-evidence schedule baseline (disclosed config, scoring.prs.baselines).
Schedule milestone achieved +5 Announcement Milestone "Announcement" achieved on/ahead of its first announced date (2025-09-18).
Schedule milestone achieved +5 Utility Approval Milestone "Utility Approval" achieved on/ahead of its first announced date (2026-01-31).

Milestones

  1. Announcement

    Achieved

    Announcement · Actual:

  2. Energization

    Expected
    1 revision

    Energization · Expected:

  3. Utility Approval

    Achieved

    Utility approval · Actual:

  4. Energization

    Expected
    1 revision

    Energization · Expected:

Constraint observations

No active constraint observations recorded against this project.

Entities & roles

Entity
Role
Ownership
Committed capital
Microsoft
Investor
100% $7.3B
Microsoft
Operator
Microsoft
Owner
We Energies (WEC Energy Group)
Power Supplier
We Energies (WEC Energy Group)
Utility Provider
Nvidia
Chip Supplier
National Grid Renewables
Power Supplier

Sources & citations

Every substantive field on this record is backed by a canonical claim from a cited source document, graded on the E1 (strongest) – E5 (weakest) evidence ladder.

  1. Microsoft On the Issues · Sep 18, 2025 · backs: actual date, capex usd, expected date

    https://blogs.microsoft.com/on-the-issues/2025/09/18/made-in-wisconsin-the-worlds-most-powerful-ai-datacenter/

  2. w.media · backs: actual date

    https://w.media/microsoft-gains-approval-for-15-new-data-centers-in-wisconsin/

  3. Epoch AI · backs: expected date

    https://epoch.ai/data-insights/fairwater-power-usage

  4. Tom's Hardware · Sep 18, 2025 · backs: status

    https://www.tomshardware.com/tech-industry/artificial-intelligence/microsoft-announces-worlds-most-powerful-ai-data-center-315-acre-site-to-house-hundreds-of-thousands-of-nvidia-gpus-and-enough-fiber-to-circle-the-earth-4-5-times

Signals

Recent ingested source documents linked to this project via extracted claims or triage mentions, newest first.

  1. · Racine County Eye · relevance 0.95

  2. · Microsoft On the Issues · relevance 0.85

  3. · Tom's Hardware · relevance 0.30

  4. · PR Newswire · relevance 0.70