Officials back utility impact study; discuss preliminary ~40 MW threshold for data centers

Mar 18, 2026

Harmony board members supported requiring a utility impact study to assess grid capacity and infrastructure needs and discussed a preliminary guideline of about 40 megawatts per project, with further technical input from MiEnergy and Dairyland Power before any final cap.

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The joint planning group urged a required utility impact study for proposed data center projects to evaluate grid capacity, infrastructure needs and system reliability. Officials said such studies would clarify whether infrastructure improvements are needed and help assign upgrade costs to developers.

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