NorthWestern has development agreements with Atlas Power Holdings LLC and Quantica Infrastructure to supply power to data centers in Montana. The Sabey Data Centers development agreement has been terminated, and the company is working to execute electric service agreements.
Atlas Power Holdings LLCNorthWestern Energy GroupQuantica InfrastructureSabey Data Centers Source: NorthWestern Energy Group, Inc. 8-K, filed Nov 5, 2026