Data center campus
Vantage Port Washington (Lighthouse) Campus
Vantage Port Washington (Lighthouse) Campus is an AI data center campus developed by Vantage Data Centers in Wisconsin, Port Washington. 0.90 GW of capacity has been announced; none is energized yet. The gap is what this page tracks: what is claimed versus what is actually built, each figure dated and sourced.
Under construction · Vantage Data Centers · greenfield · MISO · Port Washington, Wisconsin, United States
Capacity: announced vs energized
Announced-to-energized gap: 0.90 GW. Every figure below is a single dated, sourced claim. Current best per series resolves by evidence tier, then date. See the methodology.
Promised online: 2028. 27 months away. Claimed by Vantage Data Centers (source).
| Source | ||||
|---|---|---|---|---|
| Announced | 0.90 GW | 2025-10-22 | reported | press release |
| Contracted | 1.30 GW | 2025-10-01 | reported | utility filing |
Key facts
Lifecycle
Announced
Energized
Developer
Location
Grid
Land
Facilities tracked
On the data center map
Every tracked data center is on this map, centered on Vantage Port Washington (Lighthouse) Campus. Pan or zoom out to see how close rivals are building.
- Announced capex
- $15B
- Jobs
- 1,000 permanent reported
- Grid
- MISO · Grid connected, in progress: Vantage is seeking a 1.3 GW connection from We Energies, with full build-out potentially requiring 3.5 GW. MISO moved the in-service date to 1 December 2027, and ATC was awarded the substations that serve the site.
- Cost per MW
- $17M/MW
- Cost per job
- $15M per permanent job
Every figure is one row in the ledger below with its source. Derived rows are pure arithmetic on the rows above (not new claims). Absent lines mean the fact isn't on record yet.
In clusterWisconsin(43)
The deal
- offtaker
- OpenAI · Stargate program
- utility
- We Energies (WEC Energy Group) · Dedicated large-customer electricity rate
- financier
- Cloverleaf Infrastructure · Co-party on PSC collateral tariff filing
- developer
- Vantage Data Centers · Underwriting 100% of power infrastructure
- operator
- Vantage Data Centers
- offtaker
- Oracle · Stargate program
Power
- Power source
- grid
- Grid operator
- MISO
- Interconnection
- Grid connected, in progress: Vantage is seeking a 1.3 GW connection from We Energies, with full build-out potentially requiring 3.5 GW. MISO moved the in-service date to 1 December 2027, and ATC was awarded the substations that serve the site.
- Water
- Closed-loop liquid cooling system that uses minimal water; Vantage committing a minimum of $175M to regional water/wastewater upgrades (new water tower, upgraded mains, sewer). Stated goal water-positive via restoration projects.
45 diesel emergency generators (Wisconsin DNR permit 25-MIN-094), grid interconnect, Permitted. Backup generation air permit issued 2026-06-12
New generation for Lighthouse campus, 2 GW other, Announced. Partners cite 'nearly two gigawatts of new energy to the grid,' allocated ~70% to campus / ~30% to Wisconsin consumers; described as zero-emission energy capacity. No generation technology confirmed.
The MISO grid demand right now: 76.0 GW (EIA-930, 2026-09-27 19:00). Vantage Port Washington (Lighthouse) Campus's announced 0.90 GW would be 1.2% of the grid's current load.
County water status: No drought in Ozaukee County, week of 2026-09-22 (US Drought Monitor). Data centers are large water users for cooling; this is the neutral local water picture.
Why here
Vantage Port Washington (Lighthouse) Campus sits on greenfield in Wisconsin, Port Washington. It connects to the MISO grid, draws on grid power, interconnection is Grid connected, in progress: Vantage is seeking a 1.3 GW connection from We Energies, with full build-out potentially requiring 3.5 GW. MISO moved the in-service date to 1 December 2027, and ATC was awarded the substations that serve the site.. This siting summary is composed from the record's held fields, not speculation; see methodology.
Financial structure
- Campus investment ($15B+)
- $15B press release
- Regional water/power infrastructure upgrades
- $175M. Minimum commitment for water/wastewater treatment expansion, upgraded mains/sewer, new water tower and power infrastructure. press release
Regulatory paper trail
The filings and rules on record for this site and its jurisdiction, most recent first. Each is a sourced, dated artifact you can follow to the primary document.
Investment, workforce and specs
Facilities at this campus
Timeline
- Aug 2026financial recordedcapex: Regional water/power infrastructure upgrades
- Sep 2026Current: Under construction
Sources
- Port Washington Data Center Proposal (environmental review, air permit 25-MIN-094)
- Vantage seeking 1.3GW grid connection for data center in Port Washington
- Utility, data center developers want tech giant exempted from collateral requirements
- OpenAI, Oracle and Vantage Announce Stargate Site in Wisconsin
ac248e13-c7bf-4ec3-a3bf-7819994a8940 · Tracked with DEPLOY's verified-vs-claimed methodology. Every term is defined in the glossary. Announced numbers are claims, not built capacity.
Head-to-head
Common questions
What is Vantage Port Washington (Lighthouse) Campus?
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Who is building Vantage Port Washington (Lighthouse) Campus?
Is Vantage Port Washington (Lighthouse) Campus operating yet?
How verified is the data on Vantage Port Washington (Lighthouse) Campus?
Deploy Watch
Track Vantage Port Washington (Lighthouse) Campus on Deploy.
We notify you when energized capacity, lifecycle state, or a new dated capacity claim changes against primary-source evidence, not when the developer issues a press release.
Cite this page
DEPLOY. (2026). Vantage Port Washington (Lighthouse) Campus: AI data center campus record. Retrieved September 27, 2026, from https://registry.deploy.report/datacenters/vantage-lighthouse-port-washington-wisconsin
More citation formats (MLA, Chicago, BibTeX) →The verified data on this page is available under a Creative Commons Attribution 4.0 license: reuse the facts freely, with attribution to DEPLOY (deploy.report). The prose, design, and any imagery are not included and keep their own rights.
Machine-readable surfaces
- Markdown mirror: /datacenters/vantage-lighthouse-port-washington-wisconsin.md
- JSON-LD: embedded in this page’s head
- REST API: /v1/datacenters/vantage-lighthouse-port-washington-wisconsin
- Data documentation: /data
- Query this programmatically: Deploy MCP