FORT WAYNE, Ind. -- Google has submitted a new request to state environmental regulators seeking approval to install 228 additional emergency generators at its Fort Wayne data center campus.
The company filed its third air permit modification application with the Indiana Department of Environmental Management. Google says the generators would serve as backup power during outages and would also operate for legally required maintenance testing.
According to Google, each generator is expected to run fewer than 10 hours per year for testing outside of emergency situations. The company said the EPA-certified units would use ultra-low sulfur diesel or renewable diesel alternatives, including hydrotreated vegetable oil.
Google said the proposed additions would keep the facility below its state-required emissions cap. The company also said it has added pollution-control equipment to several generators to help meet or exceed federal Tier 4 emissions standards.
IDEM approved an earlier request in April for more than 140 emergency diesel generators, along with five smaller units. The data center project had previously been approved for 34 main diesel generators in 2024.
As of Monday, IDEM had not announced whether it would hold a public hearing on the latest permit request.