Port Washington, WI · Ozaukee County · 43.388°N 87.875°W
Stargate Lighthouse Campus
Vantage Data Centers (for OpenAI / Oracle)
Key facts
- Location
- Port Washington, WI, Ozaukee County
- Capacity
- 902 MW planned
- Powered by
- 70% renewable (solar + wind + battery) + grid
- Announced
- 2025
- Last updated
Civic impact
Economics
- Investment
- $15B
- Land
- 672 acres
- Jobs
- 4,000 construction · 1,000 permanent
Energy & water
- Energy source
- Mixed · Utility: We Energies (WEC Energy Group)
- Cooling
- Closed-loop
Vantage commits to '100% Matched Zero-Emission Energy' via solar, wind, and battery storage; the four buildings need ~1.3 GW, served under a dedicated We Energies rate with Vantage underwriting the power infrastructure. A $1.4B transmission line was proposed by American Transmission Co.
Closed-loop liquid cooling using minimal water; Vantage commits to 'water positivity,' restoring more water than the campus consumes.
Public subsidies
- Tax Incremental District No. 5 (TID 5; ~$458.6M projected expenditure, mostly developer-reimbursement)$458MPort Washington, Wisconsin · 2025
Community sentiment
An April 2026 referendum passed (~66%) requiring voter approval for future TIDs over $10M; Marquette polling found ~70% believe data-center costs outweigh benefits (the biggest sentiment shift in 14 years of polling); Great Lakes Neighbors United sued over the TID's legality. The existing TID 5 stands.
Port Washington voters pass referendum fueled by concerns about data center projectStatus history
- Proposed
Announced as Stargate Wisconsin site; $15B, 4-building campus on 674 acres north of Milwaukee
OpenAI, Oracle, and Vantage Data Centers Announce Stargate Site in Wisconsin — Vantage - Under construction
Ground broken; foundation work visible in satellite imagery; Phase 1 ($8B) targeted 2028
Vantage Breaks Ground on $15B Stargate Campus in Wisconsin — Data Center Knowledge
Location
Sources & data provenance
Reported: data based on credible news outlets or industry sources.
Last updated:
- Vantage Data CentersRetrieved:
- Data Center KnowledgeRetrieved:
- Construction DiveRetrieved:
- Wisconsin WatchRetrieved:
- Wisconsin Public RadioRetrieved:
Compute Atlas is community-correctable. If you have better data, please open an issue.
Suggest a correction →