Experts warn hyperscale data centers could sharply raise utility costs and require major new infrastructure

Aug 4, 2026

Corey Singletary of the Citizens Utility Board told a county committee that hyperscale data centers — including projects tied to Dane County — can force utilities to invest in large generation and transmission projects that may shift costs to other ratepayers if loads don’t materialize.

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Corey Singletary, director of regulatory affairs for the Citizens Utility Board of Wisconsin, told the committee that the arrival of very large "hyperscale" data centers can rapidly change a utility’s resource needs and rate structure. "The QTS project had it gone through, plus the metadata center in Dane County would have together, at the end of the day, added up to about 40% of what Alliant Energy's load would have been once those projects were fully up and running," he said.

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