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Notice

Pick-Sloan Missouri Basin Program-Eastern Division-Rate Order No. WAPA-218

Notice of rate order concerning transmission and ancillary services formula rates.

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Summary:

The formula rates for the Upper Great Plains region's (UGP) Pick-Sloan Missouri Basin Program--Eastern Division (P-SMBP--ED) transmission and ancillary services for UGP's costs to be recovered under the Southwest Power Pool's (SPP) Open Access Transmission Tariff (Tariff) should UGP decide to expand its participation in SPP in the Western Interconnection, have been confirmed, approved, and placed into effect on an interim basis (Provisional Formula Rates). If UGP expands its participation in SPP, these new formula rates under Rate Schedules WAUGP-ATRR (transmission), WAUGP-DCTIE-IMEU (incremental market efficiency use share), and WAUGP-AS1 (scheduling, system control and dispatch) will supersede the extended formula rates for transmission and ancillary services under Rate Schedules WAUGP-ATRR, WAUGP-AS1, WAUW-AS3, WAUW-AS4, WAUW-AS5, WAUW-AS6, and WAUW-AS7, which expire on September 30, 2030.

Key Dates
Citation: 90 FR 30910
The Provisional Formula Rates under Rate Schedules WAUGP-ATRR, WAUGP-DCTIE-IMEU, and WAUGP-AS1 are effective on the first day of the first full billing period beginning upon the later of the following events: (1) when UGP expands its participation in SPP in the Western Interconnection; or (2) the go-live date of the expansion of the SPP Regional Transmission Organization (RTO) into the Western Interconnection (scheduled for April 1, 2026, as of the date of this Rate Order). UGP will provide notification of the effective date of the Provisional Formula Rates on its Rates and Open Access Same-Time Information System websites. These Provisional Formula Rates will remain in effect through March 31, 2031, pending confirmation and approval by the Federal Energy Regulatory Commission (FERC) on a final basis or until superseded. If UGP does not expand its participation in SPP in the Western Interconnection, these rates will be canceled and the extended formula rates under Rate Order WAPA-217 will remain in effect.
Public Participation

Document Details

Document Number2025-12990
FR Citation90 FR 30910
TypeNotice
PublishedJul 11, 2025
Effective DateMar 31, 2031
RIN-
Docket ID-
Pages30910–30916 (7 pages)
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Agencies & CFR References

Agency Hierarchy:
Energy Department→Western Area Power Administration
CFR References:
None

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