NorthWestern Energy Pushes Data Center Large-Load Tariff in Montana

NorthWestern Energy is seeking approval in Montana for a large-load tariff covering new customers that use at least 5 megawatts, a threshold aimed largely at data centers.

The proposal would require those customers to fund infrastructure upgrades and face related surcharges, while regulators and local officials debate how to protect existing ratepayers from higher bills and stranded costs if projects are delayed or fail to operate.