Maple River – Cuyuna 345 kV Transmission Line Project
Project Details
Project Name
Maple River – Cuyuna 345 kV Transmission Line Project
Applicant
Minnesota Power, Great River Energy, Otter Tail Power
Location
Crow Wing County
Description
The Project involves construction of a new 345 kV double-circuit transmission line, initially operated as a single circuit, extending from Minnesota Power’s Cuyuna Substation in Crow Wing County, Minnesota, to Otter Tail Power Company’s Maple River Substation in Cass County, North Dakota
Status
active
Project Contact
Project Summary
The Applicants seek a Certificate of Need from the Minnesota Public Utilities Commission for the Maple River–Cuyuna 345 kV Transmission Project, a new 160–180 mile double-circuit transmission line connecting substations in Minnesota and North Dakota. The line will be jointly owned by Minnesota Power, Otter Tail Power Company, and Great River Energy.
Key Project Documents
Date
|
Title
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Description
|
|---|---|---|
02/05/2026
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Certificate of Need Application
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Docket Documents
View Project Documents (last 30) View All Project Documents
| Date | Document ID | On Behalf Of | Description |
|---|---|---|---|
| April 3, 2026 | 20264-230026-01 | PUC | Decision Option Commissioner Tuma New 10 |
| April 1, 2026 | 20264-229939-01 | PUC | April 9, 2026 Agenda |
| March 27, 2026 | 20263-229603-01 | PUC | April 9, 2026 Agenda Meeting |
| March 23, 2026 | 20263-229554-01 | Minnesota Power, Great River Energy, Otter Tail Power Company | Maple River - Cuyuna Ninth Status Update |
| March 19, 2026 | 20263-229553-01 | PUC | Susan Holden w Attchmnts |
| March 17, 2026 | 20263-229362-01 | PUC | Open House Postcard Invite and Refined Potential Route Map |
| March 10, 2026 | 20263-229115-01 | LIUNA Minnesota/North Dakota | |
| March 10, 2026 | 20263-229113-02 | Donna J. Andersen and Curtis Andersen and Donna's Acres LLC | Supplemental Comment of Donna J. Andersen and Curtis Andersen and Donna's Acres LLC |
| March 10, 2026 | 20263-229113-01 | Donna J. Andersen and Curtis Andersen and Donna's Acres LLC | Cover and Cert Srv of Supplemental Comment |
| March 10, 2026 | 20263-229076-01 | DOC DER | |
| March 3, 2026 | 20263-228881-01 | Donna J. Andersen and Curtis Andersen and Donna's Acres LLC | Reply Comments of Donna J. Andersen and Curtis Andersen and Donna's Acres LLC |
| March 3, 2026 | 20263-228880-01 | Minnesota Power, Great River Energy, and Otter Tail Power Company | Reply Comments on CON Application Completeness |
| March 3, 2026 | 20263-228880-02 | Minnesota Power, Great River Energy, and Otter Tail Power Company | Certificate of Service - Reply Comments on CON Application Completeness |
| February 27, 2026 | 20262-228767-01 | Overland - Legalectric | Overland Reply Comment - Xcel Peak Demand Down 377MW |
| February 25, 2026 | 20262-228610-01 | Donna J. Andersen and Curtis Andersen and Donna's Acres LLC | Cover and Certificate of Service - Andersen Comments |
| February 25, 2026 | 20262-228638-01 | Donna J. Andersen and Curtis Andersen and Donna's Acres LLC | Notice of Appearance - Donna J. Andersen and Curtis Andersen and Donna's Acres, LLC |
| February 24, 2026 | 20262-228531-01 | PUC EIP | on CN Application Completeness |
| February 24, 2026 | 20262-228585-01 | DOC DER | |
| February 24, 2026 | 20262-228547-01 | Midcontinent Independent System Operator, Inc. | |
| February 24, 2026 | 20262-228586-01 | Donna J. Andersen and Curtis Andersen, et al. | Initial Comments of Donna J. Andersen and Curtis Andersen, et al. |
| February 23, 2026 | 20262-228456-01 | PUC | James Cox |
| February 20, 2026 | 20262-228413-01 | PUC | Bianca Wyffels - May Township (Cass County) Clerk |
| February 17, 2026 | 20262-228511-01 | PUC | Bianca Wyffels |
| February 17, 2026 | 20262-228217-01 | Minnesota Power, Great River Energy, and Otter Tail Power Company | Maple River - Cuyuna Eighth Status Update |
| February 9, 2026 | 20262-227936-01 | PUC | NOTICE OF COMMENT PERIOD ON APPLICATION COMPLETENESS |
| February 6, 2026 | 20262-227901-01 | Minnesota Power, Great River Energy, Otter Tail Power Company | Affidavit of Mailing to Public Libraries - MR-C Application |
| January 30, 2026 | 20261-227646-02 | Minnesota Power, Great River Energy, Otter Tail Power Company | Certificate of Service - MR-C Application |
| January 30, 2026 | 20261-227646-01 | Minnesota Power, Great River Energy, Otter Tail Power Company | Summary of Filing - MR-C Application |
| January 30, 2026 | 20261-227645-02 | Minnesota Power, Great River Energy, Otter Tail Power Company | Application and Appendices A through E |
| January 30, 2026 | 20261-227645-03 | Minnesota Power, Great River Energy, Otter Tail Power Company | Appendices F through K (PUBLIC) |