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Proposed Revision Request Detail Help
PRR Life Cycle*****Stakeholder Meeting on Recommendation****
PRR Details
PRR #
1668
Title Initial version of the market operations BPM changes for the day-ahead market enhancements and extended day-ahead market initiatives
Date Submitted 3/5/2026 9:47 AM
PRR Category C
Priority Emergency
Owner Martin, Michael (CAISO)
Status Stakeholder Meeting on Recommendation
Status End Date 5/19/2026 11:59 PM
Related BPM Market Operations
BPM Section Numerous Sections
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Existing Language

​See Attached

Proposed Language

​See Attached​

Reason For Revision

​The initial version of the Market Operations BPM and Market Operations BPM Appendices for DAME and EDAM changes.  Note: Submitted as Emergency due to just missing the Normal timeline cutoff.  

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

Martin, Michael (CAISO)
Modified BPM language proposed by the PBM Chnage Management Coordinator

​See attached.

Identification of the authorship of comments

CAISO
Action

Approve the BPM PRR as modified.

Added several clarifying examples
Statement of apparent requirements of the BPM PRR

Priority and rank for any BPM PRR requiring a CAISO system change

NA
Proposed effective date(s) of the BPM PRR

Effective May 1 with the implementation of DAME/EDAM
Other recommended actions

Announcements
Please see the attached response to comments and updated version of Market Operations BPM.
Posted On - 4/27/2026 7:04 PM
This PRR was submitted as “Emergency” only because it was received after the standard deadline. The BPM language has not been published to the BPM library as a typical emergency update. Instead, the updated BPM language will be published in May 2026.
Posted On - 3/5/2026 10:18 AM
Impact Analysis
PRR 1668 Impact Analysis Form.doc    
Notes:
Initial Comments
CAISO EDAM - DAME Implementation PRR 1668 Market Operations - Vistra.pdf    
We have received written comments from Cathleen Colbert on behalf of Vistra on 4/15/26. Please see attached.
4/16/2026 8:01 AM
Logged By - Madrigal, Radha (CAISO)
Comments re PRR 1668(201136107.1).docx    
Please see the attachment for Initial Comments on PRR 1668 on behalf of the Cities of Anaheim, Azusa, Banning, Colton, Pasadena, and Riverside, CA ("Six Cities")
4/14/2026 3:12 PM
Logged By - Bonnie Blair (Cities of Anaheim, Azusa, Banning, Colton, Pasadena, and Riverside, CA)
WPTF Comments on EDAM DAME Draft BPM - Market Ops.docx    
Please see attached document for comments on the Draft BPM Language
4/14/2026 2:02 PM
Logged By - Gridwell Consulting for WPTF (Western Power Trading Forum)
Southern California Edison provides the following comments:

In the BPM for Market Operations Appendices, Section L.4., several descriptions contain "Error! Reference source not found." on page 313, and 323, 327, 328. SCE requests the CAISO please clarify what these sections are intended to be.
3/17/2026 2:27 PM
Logged By - John Diep (Southern California Edison)
Recommendation Comments
Six Cities Recommendation Comments for PRR 1668:
Section 6.5.1 - - In the second paragraph, second line, should “system marginal component” be “BAA marginal component.”
Section 6.6.5 - - A number of IFM Parameter Values, RUC Parameter Values, and Real-Time Parameter Values have been revised or added.  Please identify stakeholder materials that describe the logic and process for establishing the revised or added parameters or, if such materials have not previously been circulated to stakeholders, please provide an explanation for the revised and added parameter values. 
Section 6.8.2.4.4 - - The Six Cities’ Initial Comments on PRR 1668 questioned whether there will continue to be adjustments for Eligible Intermittent Resources under the DAME/EDAM design and if so, whether Eligible Intermittent Resources will be recognized in EDAM BAAs other than the CISO BAA.  The revised version of the BPM for Market Operations does not address the question, and the Six Cities reiterate their request for clarification.
Appendices, General Comment - - Throughout the revised Appendices volume there are multiple inconsistencies in headings, sub-headings, and exhibit references and missing cross-references that should be corrected for improved clarity.
Appendices Section N - -In the sub-section titled Calculation of Thresholds at page 328, third line, should the reference to “IRU and IRD” be “FRU and FRD”?
Appendices Section O - - In the sub-section at page 332 titled Calculation of Mosaic Quantile Regression, first line, should “Flexible Ramp” be “Imbalance Reserves”?
5/19/2026 3:43 PM
Logged By - Bonnie Blair (Cities of Anaheim, Azusa, Banning, Colton, Pasadena, and Riverside, CA)
Attachments