BSSE Transmission Line


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Big Stone South to Ellendale Transmission Line

Improving Reliability  apple-touch-icon.png  Delivering Power  apple-touch-icon.png  Supporting Public Policy

The Big Stone South to Ellendale (BSSE) 345-kV Transmission Line will extend 163 miles from the Big Stone South Substation near Big Stone City, South Dakota, to the Ellendale Substation near Ellendale, North Dakota. Otter Tail Power Company and Montana-Dakota Utilities Co. own the project.

Project News

$730 Million transmission line to harness South Dakota Wind

Proposed transmission lines from Ellendale, N.D., to the Big Stone South substation a…
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©2017 Otter Tail Power Company and Montana-Dakota Utilities Co.