Otter Tail Power Company service area, North Dakota

Otter Tail proposed high power compute rate for data center load

Regulatory or tariff proceeding

Pending proceeding This is an open proceeding, not a final rule or tariff approval.

Scope

In North Dakota Public Service Commission Case PU-26-215, filed 18 June 2026, Otter Tail Power Company asks the Commission to approve a new class for very large customers and a Large General Service Tier III High Power Compute rate schedule for customers with at least 75 MW of firm data center load, designed as a long-term take-or-pay service that assigns to the data center all costs attributable to serving data center load, with a proposed effective date of 1 January 2027.

Geographic scope
Otter Tail Power Company service area, North Dakota
Jurisdiction
Utility territory
Authority type
Utility
Issuing authority
Otter Tail Power Company (petition filed with the North Dakota Public Service Commission)

Dates

Adopted
No adoption day is recorded
Effective
Not in effect (open proceeding)
Scheduled expiration
None scheduled
Ended
Not recorded as ended
Completion condition
None stated
Source document
18 June 2026
Last checked
1 October 2026 (earlier than tracker date 5 October 2026; not an automatic status change)

Summary

Otter Tail Power Company petitioned the North Dakota Public Service Commission on 18 June 2026 to create a class for very large customers and a high power compute rate schedule for customers with at least 75 MW of firm data center load, structured as take-or-pay service that assigns data center costs to the data center, with a proposed start of 1 January 2027. On 27 July 2026 the Commission suspended the proposed rates and issued a notice of opportunity for hearing. The case is pending and nothing has been approved.

What this does not establish

  • This is the utility's pending petition; the Commission case page, checked on 23 September 2026, lists no final order and an informal hearing set for that afternoon.
  • The 15 September 2026 supplemental filing and the 21 September 2026 staff memorandum were not opened, so the proposed terms may have changed.
  • The proposed 1 January 2027 effective date is not stored because nothing has been approved.
  • Parallel Otter Tail filings in Minnesota and South Dakota are separate proceedings in other jurisdictions.

Unresolved questions

  • Whether and when the Commission will approve, modify or reject the proposed schedule.

Relationships

Supersession means a later instrument replaces the earlier legal effect. Repeal links identify the repeal instrument and the measure it ends. A later implementation or related letter is not treated as a replacement unless the record says so.

  • No related action is recorded.

Sources

Primary source

https://www.psc.nd.gov/webdocs/case/26-0215/001-010.pdf

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