Proposed Revision Request Detail Help
PRR Life Cycle****Recommendation Comment*****
PRR Details
PRR #
1585
Title Updated BPM configuration guide for pre-calc wheel export quantity to accommodate summing over attribute which is conflicting with existing business drivers
Date Submitted 8/15/2024 9:55 AM
PRR Category B
Priority Normal
Owner Ahmadi, Massih (CAISO)
Status Recommendation Comment
Status End Date 10/15/2024 11:59 PM
Related BPM Settlements and Billing
BPM Section CG PC Wheel Export Quantity_5.7
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Existing Language

​See BPM attached to this PRR

Proposed Language

See BPM attached to this PRR ​

Reason For Revision

​

When updates (with a 6/1/2024 Effective Date) associated with the TSMSP2 project were released to Production with the Summer 2024 Release a defect discovered that entities with ATC Reservations are seeing a doubling of the export quantities associated with that intertie. This occurred because the PriorityWheelThruPosition payload (which provides the ATC PWT Reservation Quantity derived in WebWheel) provides the CONTRACTRIGHT_MRID attribute and the DReAMS and MSDC team had believed this to be a renaming of the CONTRACT_REF_ID which we were expecting in existing configurations. In testing, the payload only presented future dated transactions so MSDC could not perform Settlement runs which would have discovered the issue proactively. This is causing conflicts with existing business drivers and leads to inaccurate calculations.

 

A change is required to sum over this conflicting attribute in the configuration so that it not cause conflicts. Its purpose is informational and summing over it will not impact calculations.

 

Wheel Export Quantity PC, CC 382 High Voltage Wheeling Allocation, CC 383 Low Voltage Wheeling Allocation, CC 385 Low Voltage Wheeling Revenue Payment and CC 384 High Voltage Wheeling Revenue Payment are impacted. We propose that the change be made retroactive to 6/1/2024 so the impacted trade dates can be trued up upon recalculation of the impacted trade dates. The anticipated implementation date is 10/30/2024.
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BPM PRR Submitter

Ahmadi, Massih (CAISO)
Modified BPM language proposed by the PBM Chnage Management Coordinator

​Approve as submitted.

Identification of the authorship of comments

No comments were received.
Action

Approve the BPM PRR as submitted

N/A
Statement of apparent requirements of the BPM PRR

This BPM PRR contains basic language changes.
Priority and rank for any BPM PRR requiring a CAISO system change

There are system changes associated with this PRR. The system changes are planned for implementation on 6/1/2024 on a normal basis.
Proposed effective date(s) of the BPM PRR

The ISO proposes an effective date of 6/1/2024 for the BPM revisions.
Other recommended actions

The ISO does not recommend any other actions on this BPM PRR.
Announcements
This BPM was revised. Please review recent changes which are highlighted in non-yellow. Thank you
Posted On - 10/3/2024 10:49 AM
Impact Analysis
Impact Analysis not available.
Initial Comments
No Initial Comments available for this PRR.
Recommendation Comments
No Recommendation Comments available for this PRR.
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