Compute Institute
Ratings for the physical buildout of AI
Stargate Wisconsin - Vantage Lighthouse (Port Washington)

Stargate Wisconsin - Vantage Lighthouse (Port Washington)

Construction
Confirmed

Jurisdiction: US — Rest of US (composite)

672-acre Lighthouse campus, Port Washington, Ozaukee County, Wisconsin; four single-story data centers totaling 2.5 million sq ft

Capacity
902 MW basis: it load
GPUs (est.)
Capex
$15.0B
Announced
Target operational

Delivery health score

82 /100
82/100

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

Schedule

90 /100
90/100

Regulatory

70 /100
70/100

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 Vantage Data Centers (investor) investor role committed $15,000,000,000 (coverage 100% of $15,000,000,000 capex).
Capital baseline 40 Stargate Wisconsin - Vantage Lighthouse (Port Washington) Capital base before committed-capital evidence (announcement-only anchor region, §B.2.4).
Infrastructure baseline 70 Stargate Wisconsin - Vantage Lighthouse (Port Washington) No-adverse-evidence infrastructure baseline (disclosed config, scoring.prs.baselines).
Regulatory baseline 70 Stargate Wisconsin - Vantage Lighthouse (Port Washington) No-adverse-evidence regulatory baseline (disclosed config, scoring.prs.baselines).
Schedule baseline 80 Stargate Wisconsin - Vantage Lighthouse (Port Washington) 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 (2025-10-22).
Schedule milestone achieved +5 Groundbreaking Milestone "Groundbreaking" achieved on/ahead of its first announced date (2025-12-17).

Milestones

  1. Announcement

    Achieved

    Announcement · Actual:

  2. Groundbreaking

    Achieved

    Groundbreaking · Actual:

  3. Commissioning

    Expected
    1 revision

    Commissioning · Expected:

  4. Commissioning

    Expected
    1 revision

    Commissioning · Expected:

Constraint observations

No active constraint observations recorded against this project.

Entities & roles

Entity
Role
Ownership
Committed capital
OpenAI
Operator
Oracle
Operator
Vantage Data Centers
Developer
Vantage Data Centers
Investor
$15.0B
Vantage Data Centers
Owner
We Energies (WEC Energy Group)
Power Supplier
We Energies (WEC Energy Group)
Utility Provider

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. Vantage Data Centers · Oct 22, 2025 · backs: actual date, capex usd, expected date

    https://vantage-dc.com/news/openai-oracle-and-vantage-data-centers-announce-stargate-data-center-site-in-wisconsin/

  2. BizTimes · backs: actual date, expected date, status

    https://biztimes.com/groundbreaking-held-as-construction-begins-on-15b-port-washington-data-center/

  3. DCD · backs: capacity mw

    https://www.datacenterdynamics.com/en/news/openai-oracle-and-vantage-plan-stargate-wisconsin-data-center-expected-to-be-close-to-a-gigawatt/

Signals

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

  1. · Data Center Knowledge · relevance 0.95

  2. · Vantage Data Centers · relevance 0.85

  3. · Vantage Data Centers · relevance 0.95

  4. DCD · relevance 0.95

  5. BizTimes · relevance 0.90