Stargate Port Washington (Lighthouse)

Also known as Vantage Lighthouse

Operated by Oracle at Vantage Lighthouse Campus (Port Washington) .

Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.

Measured performance

Rmax: -
Rpeak: -
Rmax ÷ Rpeak: -
Cores: -
Power: -
Per watt: - GF/W

Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.

What this machine is made of

One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.

Role	Part	Supplier at build	Quantity	Confidence	Source
Integrator	- Vantage Data Centers develops four data centers on 672 acres, close to 1 GW	Vantage Data Centers	-	Reported	vantage-dc.com epoch.ai
Cooling	- Closed-loop liquid cooling system with minimal water usage	Vantage Data Centers	-	Reported	vantage-dc.com

AI datacenter metrics

Figures beyond an accelerator count, each with who stated it. What can and cannot be compared across AI datacenters.

Metric	Value	As of	Basis	Note	Source
Stated investment	15 USD bn	2025-10	Operator stated	Vantage: more than $15 bn for four data centers on 672 acres; Construction Dive reports $8 bn for the first phase	vantage-dc.com constructiondive.com

How it is powered

Source	Provider	MW	Status	As of	Basis	Note	Source link
Grid	We Energies	-	planned	2025-10	Operator stated	Vantage: We Energies supplies power, 70% from zero-emission sources (solar, wind, battery), rest matched with renewable purchases. Campus is 902 MW of IT load.	vantage-dc.com epoch.ai

How AI campuses are powered: capacities are what the operator, utility or filing states, not what has been delivered.

The read

Lighthouse, a campus of four data centers on 672 acres (500 developed) in Port Washington, Wisconsin, announced on 22 October 2025 by Vantage Data Centers with Oracle and OpenAI as part of the 4.5 GW Stargate expansion, with a stated 15 billion dollar-plus investment and completion scheduled for 2028. Vantage's release gives close to 1 GW of AI capacity, a closed-loop liquid cooling system and a dedicated We Energies rate matched with zero-emission energy; Epoch AI's Stargate tracker independently lists the site with Vantage as developer and foundation work visible, but projects a larger 1.3 GW. Oracle is recorded as operator to match the other Stargate site rows. No accelerator type or count has been published, and power is blank because the capacity is a planned design figure.

Timeline

2025-10-22 Announced source

Site & facility

Vantage Lighthouse Campus (Port Washington)

Location: Port Washington, WI, USA
Utility: We Energies
Cooling: Closed-loop liquid cooling

vantage-dc.com epoch.ai

Change history

2026-10-04 AI datacenter metrics: Stargate Port Washington (Lighthouse)
2026-10-01 Added Stargate Port Washington (Lighthouse)

Source check

We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.

Cited source	Result	Found on the page
epoch.ai	names system only	-
vantage-dc.com	names system only	-

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.