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NorthWestern Energy’s $7.8 million Chamberlain switchyard upgrade will increase service reliability

Date: Apr 27, 2023

TYPE: News

Chamberlain, S.D. – April 27, 2023 – NorthWestern Energy’s $7.8 million new Chamberlain switchyard project will increase capacity to provide reliable service for our customers in the Chamberlain area. NorthWestern Energy is working jointly with East River Electric Cooperative and Central Electric Cooperative. The new switchyard and East River’s new substation are being built on 10 acres located southeast of the City of Chamberlain near the intersection of 249th Street and 345th Avenue.

Work will begin in May and is expected to be completed by the end of the year. Some traffic detours and delays will be required for the safety of the public and crews working on the upgrade.

The new infrastructure will increase reliability and provide uniformity on the transmission system that serves customers in the area through the joint effort of NorthWestern Energy and East River Cooperative.

We appreciate the public’s cooperation and patience when traffic detours or delays are needed for the safety of both the public and crews. Watch for “Utility Work Ahead” signs which alert that crews are working in the area.

More information about the Chamberlain Switchyard upgrade is available online:

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NorthWestern Energy - Delivering a Bright Future

NorthWestern Energy provides essential energy infrastructure and valuable services that enrich lives and empower communities while serving as long-term partners to our customers and communities. We work to deliver safe, reliable, and innovative energy solutions that create value for customers, communities, employees, and investors. We do this by providing low-cost and reliable service performed by highly-adaptable and skilled employees. We provide electricity and / or natural gas to approximately 764,200 customers in Montana, South Dakota, Nebraska, and Yellowstone National Park. We have provided service in South Dakota and Nebraska since 1923 and in Montana since 2002.


Media Contacts:

Jo Dee Black