June 10, 2025

Otter Tail Power seeks FERC approval for incentive rates for $521M grid expansion in the Dakotas

The grid expansion is part of a larger portfolio of transmission projects aimed at adding nearly 29 GW of new generating capacity along the MISO-SPP seam.

Rate Incentive Request: Otter Tail Power Co. is requesting incentive rates to mitigate the financial risks tied to developing the $521-million Bison-Hankinson-Big Stone South transmission project in North and South Dakota, according to a June 9 filing. The incentive would allow Otter Tail to recover 100% of prudently incurred costs if the project is abandoned due to circumstances beyond its ...

Details:

Filing Date: June 9, 2025

Docket Numbers:

ER25-2462

Short Summary:

Otter Tail Power Co. is requesting incentive rates to mitigate the financial risks tied to developing the $521-million Bison-Hankinson-Big Stone South transmission project in North and South Dakota, according to a June 9 filing. The incentive would allow Otter Tail to recover 100% of prudently incurred costs if the project is abandoned due to circumstances beyond its control.

Impact Level:

Categories:

Rate & Tariff Tracker

Tags: Grid Expansion, Transmission, Transmission Projects, Transmission Rate Incentives

Entities: Otter Tail Power Co., Xcel Energy Inc.

Markets: Midcontinent Independent System Operator (MISO), Southwest Power Pool (SPP)

Regions: Canada

States: North Dakota, South Dakota

Regulators: FERC

Courts:

Documents:

Transmission Rate Incentives – Application