Johnson Junction – Big Stone Line is a 345kV overhead line with a length of 51.49km from Johnson, Big Stone County, Minnesota, US, to Big Stone County, Minnesota, US.

The project is expected to be commissioned in 2025.


Johnson Junction – Big Stone Line is an overhead line that will be operated by Otter Tail Power. The line will carry alternating current (AC) through double circuit cable.

Johnson Junction – Big Stone Line project development status

The construction works on the Johnson Junction – Big Stone Line project will be commenced in 2024 and commissioning is expected in 2025.

About Otter Tail Power

Otter Tail Power Company (Otter Tail) a subsidiary of Otter Tail Corporation is an electric utility that generates, transmits and distributes electricity. The utility’s products comprise electric plenum heaters, electric boilers, thermal-storage systems, radiant-heat systems and heat pumps. It owns and maintains electric transmission lines in Minnesota, North Dakota, and South Dakota. Otter Tail’s transmission system transmits electricity from generation plants. The utility offers rate options, rebates, and demand-response and conservation programs. It also offers off-peak programs. Otter Tail is headquartered in Fergus Falls, Minnesota, the US.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.