Scope
In South Dakota PUC Docket EL26-021, filed 27 July 2026, Otter Tail Power Company asks the Commission to approve a new class for very large customers, including a new Section 10.07 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 South Dakota service area
- Jurisdiction
- Utility territory
- Authority type
- Utility
- Issuing authority
- Otter Tail Power Company (petition filed with the South Dakota Public Utilities 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
- 27 July 2026
- Last checked
- 5 October 2026
- Proceeding
- South Dakota PUC Docket EL26-021
Summary
Otter Tail Power Company petitioned the South Dakota Public Utilities Commission on 27 July 2026 to create a very large customer class and a new high power compute rate schedule for customers with at least 75 MW of firm data center load. The proposed take-or-pay service would assign data center costs to the data center, with a proposed start of 1 January 2027. The docket is pending and nothing has been approved. The current docket lists a 29 September 2026 supplemental filing and revised tariff revisions; it still labels the matter pending. The revised proposed terms have not been separately reconciled here.
What this does not establish
- This is the utility's pending petition; as of 2026-09-23 the docket page shows the case as Pending with no orders listed.
- Revised tariff attachments filed on 5 August 2026 were not opened, so the proposed terms may have changed.
- The petition's references to parallel Minnesota and North Dakota filings are outside this state's records.
Unresolved questions
None recorded.
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.
- Related, not a replacement Separate electric service terms and water reporting for data centers (In effect)
Sources
https://puc.sd.gov/commission/dockets/electric/2026/el26-021/Petition.pdf
- South Dakota PUC Docket EL26-021 page Filing date and pending status