EnergyFiling
NorthWestern filed a Large New Load tariff rule with the MPSC covering new loads of five megawatts or greater, including data centers
Filed in March 2026, the rule requires executed Electric Service Agreements for commitments of 50 megawatts or greater to go to the MPSC for approval before service begins. Loads of 5 to 49 megawatts follow standardized processes without case-specific approval, and the MPSC has not set settlement or hearing dates.
- Size
- 5 MW
- Place
- Montana
- Companies
- NorthWestern Energy Group
- Source
- NorthWestern Energy Group, Inc. 8-K, filed Nov 5, 2026
- Published here
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