​​​

Proposed Revision Request Detail Help
PRR Life Cycle*****Stakeholder Meeting on Recommendation****
PRR Details
PRR #
1673
Title Emergency day-ahead market enhancements and extended day-ahead market incremental updates to PRR 1662
Date Submitted 5/14/2026 2:59 PM
PRR Category B
Priority Emergency
Owner Ahmadi, Massih (CAISO)
Status Stakeholder Meeting on Recommendation
Status End Date 7/15/2026 11:59 PM
Related BPM Settlements and Billing
BPM Section 56 BPM updates associated to PRR 1662 and 1 Attachment B
RSS Subscribe
Existing Language
 

​See BPMs attached to this PRR​​

Proposed Language
 

See BPMs attached to this PRR​​

Reason For Revision
 

This Emergency PRR captures Settlements incremental updates from PRR 1662 as a result of the day-ahead market enhancements and extended day-ahead market initiatives.

Click here to view the Recommendation Details for this PRR
BPM PRR Submitter

Ahmadi, Massih (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

Comments were received from Cities of Anaheim, Azusa, Banning, Colton, Pasadena, and Riverside, CA.
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 were implemented system changes associated with this PRR. If system change: The system changes were implemented on 5/1/26 on Emergency basis.
Proposed effective date(s) of the BPM PRR

The ISO proposes an effective date of 5/1/26 for the BPM revisions
Other recommended actions

The ISO does not recommend any other actions on this BPM PRR.
Announcements
Charge codes updated based on initial comments are contained in the zip file titled "PRR 1673 - updated based on stakeholder feedback.zip"
Posted On - 7/6/2026 9:38 AM
Impact Analysis
Emergency PRR 1673 Impact Analysis Form_05142026.doc    
Notes:
Initial Comments
See ISO response to Six Cities Initial comments in attachment titled "Six Cities Initial Comments on PRR 1673_CAISO_Response_07022026.docx"
7/6/2026 9:47 AM
Logged By - Madrigal, Radha (CAISO)
Six Cities Initial Comments on PRR 1673.docx    
Below is our response to comment in word doc attached.
6/16/2026 3:41 PM
Logged By - Meg McNaul (Six Cities)
---------------------------------------------
No, as we have five minutely processing as seen for mdhcif where “f” is five minutely vs “c” is 15 minutely frequencies. Thank you
6/18/2026 8:53 AM
Responded By - Ahmadi, Massih (CAISO)
Recommendation Comments
No Recommendation Comments available for this PRR.
Attachments