Tech giant Oracle is suing the Public Service Commission of Wisconsin over financial requirements for data centers as work is underway on its $15 billion campus in Port Washington.

The tech giant’s subsidiary has filed the lawsuit in Ozaukee County Circuit Court. Milwaukee-based utility We Energies, Vantage Data Centers and Cloverleaf Infrastructure are separately asking the PSC to revisit financial requirements regulators approved in April to protect ratepayers.

Oracle is asking a judge to reverse the commission’s financial provisions and order the PSC to approve financial support requirements proposed by We Energies. Oracle’s subsidiary said it could spend more than $100 million each year under the decision by utility regulators.

“The Commission’s modifications to Wisconsin Electric’s proposed Financial Support Requirements will create harmful and unintended consequences that will force significant investment outside of Wisconsin. The cost of posting the required security will deter investment in the state from many firms, who will likely pursue opportunities in other jurisdictions,” the filing states.

A PSC spokesperson said the commission doesn’t comment on pending litigation, and each commissioner is reviewing the petition filed by We Energies and others.