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Notice

Colorado River Storage Project-Rate Order No. WAPA-220

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

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Summary:

The formula rates for the Colorado River Storage Project (CRSP) region's transmission and ancillary services for CRSP's costs to be recovered under the Southwest Power Pool's (SPP) Open Access Transmission Tariff (Tariff) should CRSP decide to become a member of SPP, have been confirmed, approved, and placed into effect on an interim basis (Provisional Formula Rate). If CRSP decides to become a member of SPP, these new formula rates under Rate Schedules CRCMT-ATRR (transmission), CRCMT-AS1 (scheduling, system control, and dispatch), and CRCMT-PTP (firm point-to-point) will supersede the existing formula rates for transmission and ancillary services under Rate Schedules SP- NW6, SP-PTP10, SP-NFT9, SP-NFJDT, SP-UU3, SP-EI6, and SP-SSR6, which expire on December 31, 2028.

Key Dates
Citation: 90 FR 30916
The Provisional Formula Rates under Rate Schedules CRCMT-ATRR, CRCMT-AS1, and CRCMT-PTP are effective on the first day of the first full billing period beginning on the later of the following events: (1) when CRSP officially becomes a member of, and transfers functional control of CRSP transmission facilities to SPP; or (2) the go-live date of the expansion of the SPP Regional Transmission Organization into the Western Interconnection (scheduled for April 1, 2026, as of date of this Rate Order). CRSP 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2031, pending confirmation and approval by the Federal Energy Regulatory Commission (FERC) on a final basis or until superseded.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 CRSP does not become a member of SPP, these rates will be canceled and the existing formula rates will remain in effect.
Public Participation

Document Details

Document Number2025-12994
FR Citation90 FR 30916
TypeNotice
PublishedJul 11, 2025
Effective DateMar 31, 2031
RIN-
Docket ID-
Pages30916–30924 (9 pages)
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Agencies & CFR References

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

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