INITIATIVE:
Day-ahead market enhancements

Started: Jun 19, 2018

Leads
James Friedrich

This initiative will explore a new day-ahead product that will address ramping needs between intervals and uncertainty that can occur between the day-ahead and real-time markets.

Status

Proposal Development Decision Implementation Completed/Closed
Jul 11, 2023 Revised draft tariff language posted
May 01, 2023 Revised final proposal posted
Dec 20, 2023 FERC approval (ER23-2686)
Aug 22, 2023 Tariff amendment (ER23-2686)
May 17, 2023 Joint WEIM Governing Body and ISO Board of Governors approval
Oct 01, 2025 deployment
May 01, 2026 activation
Implementation milestones

Activities

Web meeting


Filing


Web meeting


Revised Draft Tariff Language - Day-Ahead Market Enhancements

Revised Draft Tariff Matrix - Day-Ahead Market Enhancements

View comments

Web meeting


Draft Tariff Language - Day-Ahead Market Enhancements - Jun 22, 2023

Draft Tariff Matrix - Day-Ahead Market Enhancements - Jun 22, 2023

View comments


The WEIM Governing Body market expert's opinion will be presented during the May 16, 2023, WEIM Governing Body general session meeting.


Notice of Decisional Classification - Day-Ahead Market Enhancements - May 2023

Web meeting


Presentation - Day-Ahead Market Enhancements - May 2, 2023

Revised Final Proposal - Day-Ahead Market Enhancements

Flexible Parameter Matrix - Day-Ahead Market Enhancements


Addendum - Imbalance Reserve Demand Curve - Day-Ahead Market Enhancements

Web meeting


Presentation - Day-Ahead Market Enhancements - Apr 17, 2023

CESA Presentation - Day-Ahead Market Enhancements - Apr 17, 2023

Hybrid meeting


Presentation - Day-Ahead Market Enhancements - Apr 7, 2023

Draft Revised Final Proposal - Day-Ahead Market Enhancements

Excel Solver Examples - Electrical Storage Resource Day-Ahead Market Enhancements Constraints

View comments


Comparison Matrix - Day-Ahead Market Enhancements

Web meeting


Market Surveillance Committee meeting

Hybrid meeting


Day 2 of a two-day workshop

Presentation - Day-Ahead Market Enhancements - Mar 8, 2023

WPTF Presentation - Day-Ahead Market Enhancements - Mar 8, 2023

View comments

Hybrid meeting


Day 1 of a two-day workshop

Presentation - Day-Ahead Market Enhancements - Mar 7, 2023

Vistra Presentation - Day-Ahead Market Enhancements - Mar 7, 2023

SCE Presentation - Day-Ahead Market Enhancements - Mar 7, 2023

ISO Response to SCE Presentation - Day-Ahead Market Enhancements - Mar 7, 2023

Web meeting


Presentation - Day-Ahead Market Enhancements - Feb 27, 2023

WPTF Presentation - Day-Ahead Market Enhancements - Feb 27, 2023

Vistra Presentation - Day-Ahead Market Enhancements - Feb 27, 2023


Final Proposal - Day-Ahead Market Enhancements

Web meeting


Presentation - Day-Ahead Market Enhancements - Jan 04, 2023

Draft Technical Description Presentation - Day-Ahead Market Enhancements - Jan 04, 2023

Web meeting


Market Surveillance Committee meeting

Web meeting


Presentation - Day-Ahead Market Enhancements - Dec 7, 2022

Draft Final Proposal - Day-Ahead Market Enhancements

Draft Technical Description - Day-Ahead Market Enhancements

Analysis - Methodologies to Determine Imbalance Reserve Up Eligibility Price Cap - Day-Ahead Market Enhancements

View comments

Web meeting


Presentation - Day-Ahead Market Enhancements - Nov 01, 2022

Fourth Revised Straw Proposal - Day-Ahead Market Enhancements

View comments

Web meeting


Market Surveillance Committee meeting

Web meeting


Web meeting


Presentation - Day-Ahead Market Enhancements - Sep 14, 2022

Web meeting


Web meeting


Presentation - Day-Ahead Market Enhancements - Apr 29, 2022

Presentation - Appendix C - Local Market Power Mitigation Examples

Third Revised Straw Proposal - Day-Ahead Market Enhancements (updated Apr 27, 2022)
Revisions to the proposal include language added to the WEIM Governing Body Role section and a few other minor clarifications within the proposal. The clarifications will be discussed during the Apr 29 meeting.

Appendix B Third Revised Straw Proposal - Day-Ahead Market Enhancements

Appendix C Third Revised Straw Proposal - Day-Ahead Market Enhancements

View comments

Web meeting


Presentation - Day-Ahead Market Enhancements Stakeholder Workshop - Mar 2, 2022

View comments

Web meeting


Web meeting


Presentation - Day-Ahead Market Enhancements - Stakeholder Workshop - Jan 24, 2022

Presentation - Day-Ahead Market Enhancements Analysis - Jan 24, 2022

Day-Ahead Market Enhancements Analysis Report - Jan 24, 2022

View comments

Web meeting


Presentation - Day-Ahead Market Overview - Nov 30, 2021

Web meeting



Web meeting


Meeting cancelled - the presentation was covered during the July 28 meeting and, therefore this meeting is no longer needed and has been cancelled. Please see July 28 activity below to access the presentation, proposal and other related materials.


Web meeting


Appendix B - Draft Technical Description - Day-Ahead Market Enhancements

Presentation - Day-Ahead Market Enhancements Second Revised Straw Proposal Meeting - Jul 28-29, 2021

Second Revised Straw Proposal - Day-Ahead Market Enhancements

View comments

Web meeting


Web meeting


Web meeting


Presentation - Day-Ahead Market Enhancements Initiative Update - Oct 29, 2020

Web meeting


Web meeting


Presentation - Day-Ahead Market Enhancements - Jun 15 and 17, 2020

Presentation - Day-Ahead Market Enhancements - Market Formulation

Revised Straw Proposal - Day-Ahead Market Enhancements

Reliability Capacity - Imbalance Reserve Requirement Calculation - Day-Ahead Market Enhancements

Web meeting


Presentation - Day-Ahead Market Enhancements and Extended Day-Ahead Market Initiatives Update - Apr 16, 2020

Web meeting


Web meeting


Presentation - Day-Ahead Market Enhancements - Mar 5, 2020

Comments Template - Day-Ahead Market Enhancements Straw Proposal

In-person meeting


Presentation - Day-Ahead Market Enhancements - Feb 10, 2020
Reposted to correct minor typos

Straw Proposal - Day-Ahead Market Enhancements
Reposted to correct minor typos

Variable Energy Resource Bidding and Scheduling Solver

Draft Technical Description - Day-Ahead Market Enhancements (Appendix C)

In-person meeting


Presentation - Day-Ahead Market EnhancementsWorking Group - Aug 13, 2019

In-person meeting


Presentation - Day-Ahead Market Enhancements Workshop - Jun 20, 2019

Draft Technical Description - Day-Ahead Market Enhancements (Integrated Forward Market - Flexible Ramping Product)

Draft Technical Description - Day-Ahead Market Enhancements (Integrated Forward Market - Residual Unit Commitment)

Solver Worksheet - Day-Ahead Market Enhancements (Integrated Forward Market - Flexible Ramping Product)

Solver Worksheet - Day-Ahead Market Enhancements (Integrated Forward Market - Residual Unit Commitment)