‘A meaningful risk’: Oracle’s massive 1.3 GW Wisconsin AI campus faces severe power delays as grid review restarts — pushing customer delivery past 2027
Regulators withdrew their completeness finding on ATC's application after 564 changes were filed, delaying grid power to Oracle's Wisconsin AI campus.
Oracle's 1.3 GW Wisconsin AI data center, known as Project Lighthouse, may face significant power supply delays following the restart of a lengthy electricity review. The campus, developed by Vantage for Oracle, encompasses four data centers across a site in Port Washington, and while construction continues, the facility's operational capacity remains uncertain due to regulatory proceedings.
In September 2025, American Transmission Company (ATC) initiated a process with the Public Service Commission of Wisconsin (PSC) to connect the campus to the grid. The PSC concluded its initial review in December 2025, prompting ATC to file an additional 564 documents in January 2026, changing the project's scope and presenting new challenges.
An administrative law judge ruled on July 1 that ATC had not adequately detailed each alteration, forcing the PSC to withdraw its approval in August 2026, ten months into the review process.
With this setback, the PSC decided to restart the review from scratch, with the legal clock resetting to zero, leading to further delay. Construction at the site has progressed, with two buildings partially enclosed as of September 2026, but the connection to the power grid is contingent on the outcome of the ongoing regulatory review.
Oracle anticipates service beginning as early as 2027, but based on the current regulatory timeline, partial power availability may not occur until June 2028, with full capacity only achievable by April 2029. This extended delay represents a "meaningful risk" to Oracle's projected timelines for customer delivery.
Written by urgent.news from TechRadar's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
