Proposed Revision Request Detail Help
PRR Life Cycle*********Closed
PRR Details
PRR #
1335
Title Update CC 7020 reliability must run capacity payment BPM to clawback excess revenue when reliability must run designation is for system transmission access charge area
Date Submitted 3/16/2021 8:02 AM
PRR Category B
Priority Emergency
Owner Corona, Brenda (CAISO)
Status Closed
Status End Date 6/15/2021 11:59 PM
Related BPM Settlements and Billing
BPM Section CG CC 7020 Daily RMR Capacity Payment
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Existing Language
 

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Proposed Language
 

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Reason For Revision
 

Recent new data for RMR designation meant for system-wide TAC area exposed an error in the Settlements formulation under CC 7020 RMR Capacity Payment. Total excess revenues received by the RMR resource as calculated based on Tariff section 11.13 are not clawed back from the resource’s RMR full capacity payment. This issue started with February 1, 2021 data in production. While the capacity payment to the resource as well as the allocation of costs were properly made when designation is for system TAC area, the expected claw back of excess revenues didn’t occur for this specific type of designation.

 

Configuration guide for CC 7020 Daily RMR Capacity Payment has been updated. The changes are to formulas: updated one formula and reflected its new value in another formula that it feeds, and then remove one formula that is no longer needed.

 

The fix will be deployed on or about April 28, 2021 with an effective date of TD 1/1/2020. However, the actual effect will only start with TD 2/1/2021 as that is the first time an RMR resource was designated for system-wide TAC area. As customary for retroactive settlement, Trade Dates that were already settled prior to the production fix will be resettled with the scheduled recalculation for those trade dates.
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BPM PRR Submitter

Corona, Brenda (CAISO)
Modified BPM language proposed by the PBM Chnage Management Coordinator

The ISO proposes no modified BPM language beyond that proposed in the BPM PRR.
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 4/28/2021 on an emergency basis.
Proposed effective date(s) of the BPM PRR

The ISO proposes an effective date of 1/1/2020 for the BPM revisions.
Other recommended actions

The ISO does not recommend any other actions on this BPM PRR.
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Final Decision

The ISO will adopt the BPM change as proposed in the recommendation.
Stakeholder Comment

No comments submitted.

Effective Date

1/1/2021
Action

Adopt the recommendation as originally issued

None
Announcements
PRR 1335 has been made available at this time to allow additional time to review and submit comments. 
Comment period will close 04/13/2021.  PRR will be discussed during the April and May BPM meetings.
Posted On - 3/17/2021 8:16 AM
Impact Analysis
IA - Update CC7020 to clawback excess revenue when RMR designation is for System TAC Area.doc    
Notes:
Initial Comments
No Initial Comments available for this PRR.
Recommendation Comments
No Recommendation Comments available for this PRR.
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