CAISO Firm Transmission Proposal - PRC Workplan Task Force 8

Comments accepted Sept. 17, 2025 to Oct. 17, 2025

 Clarify in WRAP Tariff and BPMs that CAISO “high-priority wheeling through” qualifies for WRAP FS transmission requirements, eliminating compliance ambiguity.




Background: 

The current WRAP Tariff includes a Forward Showing (FS) Transmission Requirement that must be met with “NERC Priority 6 or 7 firm point-to-point transmission service rights or network integration transmission service rights.” CAISO refers to its firm transmission product as “high priority wheeling through” but does not designate it with a NERC Priority rating. Further, the current WRAP Tariff does not explicitly recognize this terminology or specify its equivalency to NERC Priority 6 or 7. 


This omission from the WRAP Tariff creates uncertainty for participants relying on CAISO high priority wheeling through to meet WRAP requirements. Without explicit recognition, Participants could face compliance risks despite securing the highest available firm transmission from CAISO.


The Task Force was convened to review the how the WRAP Tariff discussed transmission and consider adding language to explicitly include CAISO “high-priority wheeling through” or equivalent products that may not utilize a NERC Priority designation, as eligible to meet the WRAP FS Transmission Requirement.

CAISO Firm Transmission Proposal - PRC Workplan Task Force 8

Includes CAISO Transmisson Proposal from the PRC Workplan Task Force 8

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PRC_2025_Workplan_-_FIRM… (.pdf)
Last updated Sept. 18, 2025


PROMPTS | .DOCX FORMAT
  • 01. Do you have any comments on the proposal itself?
  • 02. Do you have any comments on the WRAP Qualifying Transmission definition, including whether the proposed language in part (iii) provides sufficient clarity for non-NERC priority transmission products such as CAISO’s Priority Wheeling Through?
  • 03. Do you have any questions regarding the redlines to the WRAP Tariff?
  • 04. Do you have any questions regarding the redlines to BPM 103 – Participant Forward Showing Capacity Requirements?
  • 05. Do you have any questions regarding the redlines to BPM 106 – Qualifying Contracts?
  • 06. Do you have any questions regarding the redlines to BPM 108 – Forward Showing Submittal Process?
  • 07. Do you have any questions regarding the redlines to BPM 202 – Participant Sharing Calculation Inputs?
  • 08. Do you have any questions regarding the redlines to BPM 204 – Holdback Requirement?
  • 09. Do you have any questions regarding the redlines to BPM 209 – Energy Delivery Failure Charge?
  • General Comment


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Author & Organization Date General Comment
No comments have been received.