Oracle’s massive 1.3 GW Wisconsin AI campus faces severe power delays as grid review restarts

Oracle’s Project Lighthouse, a massive 1.3 GW AI data center campus in Wisconsin, is facing significant operational delays due to complications in the regulatory approval process for its power grid connection. Although construction of the facility, developed by Vantage, is progressing steadily with several buildings already enclosed, the project cannot scale to meet customer demand without the necessary high-voltage transmission infrastructure. The Public Service Commission of Wisconsin recently restarted the formal review process after the American Transmission Company (ATC) submitted hundreds of late documents, causing the legal timeline to reset. Industry analysts warn that these regulatory hurdles create a meaningful risk that power delivery will be pushed well beyond Oracle’s initial 2027 targets. Current projections suggest that partial service may not be available until mid-2028, with full capacity potentially delayed until April 2029, complicating the company's aggressive AI infrastructure rollout plans.