Oracle's planned Wisconsin AI datacenter project faces delays pending regulatory approval for grid connection, putting 2027 customer delivery at risk.

Oracle's planned 2027 opening of its Wisconsin AI datacenter now faces a real risk of slipping beyond schedule, according to research company Aterio. The facility, known as Project Lighthouse and being developed by Vantage in Port Washington with Oracle as tenant, depends on transmission infrastructure that is currently awaiting regulatory approval. Oracle had targeted delivering capacity to customers in the second half of 2027.

The immediate obstacle is American Transmission Company's (ATC) application to the Public Service Commission of Wisconsin (PSC) for approval to build the campus's grid connection. ATC is planning more than $2 billion in transmission infrastructure projects tied to datacenter developments across Wisconsin, including high-voltage power lines, substations, and upgrades to existing facilities. The PSC initially closed the original case after withdrawing its finding that ATC's application was complete. ATC refiled in September, restarting the approval process. As Aterio explained: "The problem is power. The campus cannot run until ATC connects it to the grid, and ATC cannot start building until the PSC approves its application."

The Wisconsin datacenter is rated at 902 MW of computing load and 1.3 GW of total electricity demand. The Register previously reported that Oracle could face more than $100 million per year in financing costs to guarantee the power commitments behind the campus.

Aterio's timeline projections vary significantly. Its earliest scenario puts partial power arriving in October 2027 and full supply in August 2028, though it considers that timetable highly unlikely. The base case estimates partial power in December 2027 and full supply in October 2028. An extended regulatory review could push those dates to June 2028 and April 2029. Critically, reaching power by December 2027 would leave little room for testing and commissioning. As Aterio noted: "In practice, a datacenter does not enter service as soon as first grid power arrives. Each building's electrical and cooling systems have to be energized, tested and commissioned before it can carry customer load. We therefore expect the campus's load to ramp up mainly from the first quarter of 2028."

Concerns about the Wisconsin facility have been compounded by Oracle's force majeure notice sent to a Blue Owl Capital subsidiary developing Project Jupiter in New Mexico. Bloomberg reported that Oracle was seeking to defer payments if the campus failed to launch on schedule, rather than withdraw from the project. Oracle says that development remains on schedule. However, Aterio warned: "The regulatory record points to the potential for dates later than company guidance, and Oracle's stretched finances, together with its force majeure notice on Project Jupiter in New Mexico this week, raise the potential for slippage on its largest campuses."

The financial stakes are substantial. The Financial Times reported that Tencent signed a $7 billion deal to lease around 100,000 AI processors from Oracle. For context, Oracle reported total capital expenditures of $55.7 billion for its fiscal 2026, which closed at the end of May, against total revenue of $67.4 billion. The company has provided capex guidance of up to $95 billion for its 2027 financial year.