INITIATIVE:
Extended day-ahead market

Started: Oct 03, 2019

Leads
Milos Bosanac

This initiative will develop an approach to extend participation in the day-ahead market to the Western Energy Imbalance Market (WEIM) entities in a framework similar to the existing WEIM approach for the real-time market, rather than requiring full integration into the California ISO balancing area. The extended day-ahead market (EDAM) will improve market efficiency by integrating renewable resources using day-ahead unit commitment and scheduling across a larger area.

 

Status

Proposal Development Decision Implementation Completed/Closed
Jul 25, 2023 Revised draft tariff language posted
Dec 07, 2022 Final proposal posted
Dec 20, 2023 FERC approval (ER23-2686)
Aug 22, 2023 Tariff amendment (ER23-2686)
Feb 01, 2023 ISO Board of Governors and WEIM Governing Body joint approval
Oct 01, 2025 deployment
May 01, 2026 onboarding and activation
Implementation milestones

Activities

Web meeting


Draft Compliance Filing Language - Day-Ahead Market Enhancements and Extended Day-Ahead Market

Filing


EDAM Forum



Updated revised draft tariff

Note: only documents with incremental changes have been posted

Updated Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix A Definitions

Updated Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Transmission Service Provider Agreement

Updated Revised Draft Tariff Language - Extended Day-Ahead Market - Section 11 CAISO Settlements and BIlling

Updated Revised Draft Tariff Language - Extended Day-Ahead Market - Section 29 Energy Imbalance Market

Updated Revised Draft Tariff Language - Extended Day-Ahead Market - Section 30 - Bid and Self-Schedule Submission in CAISO Markets

Updated Revised Draft Tariff Language - Extended Day-Ahead Market - Section 33 Extended Day-Ahead Market

Web meeting


The Extended Day-Ahead Market revised draft tariff language consists of 16 separate documents, provided below:

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix A Definitions

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Entity Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Addendum to EIM Entity Scheduling Coordinator Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Addendum to EIM Participating Resource Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Addendum to EIM Participating Resource Scheduling Coordinator Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Entity Implementation Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Load Serving Entity Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - EDAM Transmission Service Provider Agreement

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix C Locational Marginal Price (with DAME changes)
Revised version posted 6/9/23 - updated equations for accuracy.

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix C Locational Marginal Price

Revised Draft Tariff Language - Extended Day-Ahead Market - Appendix F Rate Schedules

Revised Draft Tariff Language - Extended Day-Ahead Market - Section 11 CAISO Settlements and BIlling

Revised Draft Tariff Language - Extended Day-Ahead Market - Section 27 CAISO Markets and Processes

Revised Draft Tariff Language - Extended Day-Ahead Market - Section 29 Energy Imbalance Market

Revised Draft Tariff Language - Extended Day-Ahead Market - Section 30 - Bid and Self-Schedule Submission in CAISO Markets

Revised Draft Tariff Language - Extended Day-Ahead Market - Section 33 Extended Day-Ahead Market
Revised version posted 6/13/23 - minor updates to section 33.23

View comments

Web meeting


Workshop 3 of 3

Working Draft Tariff - Extended Day-Ahead Market - Appendix A Definitions

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Entity Agreement

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Entity Scheduling Coordinator Agreement

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Participating Resource Agreement

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Participating Resource Scheduling Coordinator Agreement

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Entity Implementation Agreement

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Load Serving Entity Agreement

Working Draft Tariff - Extended Day-Ahead Market - Appendix B.XX - Transmission Service Provider Agreement

Working Draft Tariff - Extended Day-Ahead Market - Section 11 CAISO Settlements and BIlling

Working Draft Tariff - Extended Day-Ahead Market - Section 27 CAISO Markets and Processes

Working Draft Tariff - Extended Day-Ahead Market - Section 29 Energy Imbalance Market

Web meeting


Workshop 2 of 3

Web meeting


Workshop 1 of 3

Agenda - Extended Day-Ahead Market - May 2023 Draft Tariff Language Workshops

Addendum - Draft Tariff Language - Extended Day-Ahead Market - Section 33.18.3

Working Draft Tariff - Extended Day-Ahead Market - Section 33

Web meeting


Presentation - Extended Day-Ahead Market - Apr 10, 2023

The Extended Day-Ahead Market draft tariff language consists of 13 separate documents, provided below:

Draft Tariff Language - Extended Day-Ahead Market - Section 11 CAISO Settlements and BIlling

Draft Tariff Language - Extended Day-Ahead Market - Section 27 CAISO Markets and Processes

Draft Tariff Language - Extended Day-Ahead Market - Section 29 Energy Imbalance Market

Draft Tariff Language - Extended Day-Ahead Market - Section 33 Extended Day-Ahead Market

Draft Tariff Language - Extended Day-Ahead Market - Appendix A Definitions

Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Entity Agreement

Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Entity Scheduling Coordinator Agreement

Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Participating Resource Agreement

Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Addendum to EIM Participating Resource Scheduling Coordinator Agreement

Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Entity Implementation Agreement

Draft Tariff Language - Extended Day-Ahead Market - Appendix B.XX - Load Serving Entity Agreement

Draft Tariff Language - Extended Day-Ahead Market - Appendix C Locational Marginal Price

Draft Tariff Language - Extended Day-Ahead Market - Appendix F Rate Schedules

View comments



Notice of Decisional Classification - Extended Day-Ahead Market - Jan 2023

Web meeting


Market Surveillance Committee meeting


Final Proposal - Extended Day-Ahead Market

View comments

Web Meeting


In-person meeting


Agenda - Extended Day-Ahead Market - Nov 14, 2022

Presentation - Extended Day-Ahead Market - Nov 14, 2022

Presentation - WEIM Governance Review Committee Update - Extended Day-Ahead Market - Nov 14, 2022

GHG Models - Extended Day-Ahead Market - Nov 14, 2022

Draft Final Proposal - Extended Day-Ahead Market

View comments


Revised Tariff Framework - Extended Day-Ahead Market

Web meeting


Market Surveillance Committee meeting

Web meeting


Presentation - Extended Day Ahead Market - Oct 11, 2022


Draft Tariff Framework Outline - Extended Day-Ahead Market

Web meeting


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

In-person meeting


Day 2 of a two-day meeting

In-person meeting


Day 1 of a two-day meeting

Agenda - Extended Day-Ahead Market - Sep 7-8, 2022

Presentation - Extended Day-Ahead Market - Sep 7-8, 2022

Presentation - WEIM Governance Review Committee Update - Extended Day-Ahead Market - Sep 7, 2022

Western Power Pool Presentation - Western Resource Adequacy Program - Extended Day-Ahead Market - Sep 7, 2022

PacifiCorp Presentation - WRAP and the EDAM Coordination - Extended Day-Ahead Market - Sep 7, 2022

Web meeting


Presentation - Extended Day-Ahead Market - Aug 29, 2022

Revised Straw Proposal - Extended Day-Ahead Market

View comments

Web meeting


In-person meeting


GHG Models - Extended Day-Ahead Market Technical Workshop - Jul 27, 2022

Greenhouse Gas Regulation Model Examples - Extended Day-Ahead Market Technical Workshop - Jul 27, 2022
Note: compatible in Edge.

Greenhouse Gas Regulation Model Examples - Extended Day-Ahead Market Technical Workshop - Jul 27, 2022

In-person meeting


Agenda - Extended Day-Ahead Market Technical Workshop - Jul 26-27, 2022
Note: agenda reflects Mountain Time

Presentation - Extended Day-Ahead Market - Jul 26-27, 2022 Technical Workshop

Presentation - Extended Day-Ahead Market - Zonal GHG Approach (PGP) - Jul 26, 2022

Presentation - Extended Day-Ahead Market - LADWP GHG Approach - Jul 26, 2022

Web meeting


Presentation - Extended Day-Ahead Market Technical Workshop - Jul 20, 2022

Web meeting


Presentation - Extended Day-Ahead Market Technical Workshop - Jul 19, 2022

In-person meeting


In-person meeting


Agenda - Extended Day-Ahead Market Technical Workshop - Jul 14-15, 2022

Presentation - Extended Day-Ahead Market Technical Workshop - Jul 14-15, 2022

Web meeting


Presentation - Extended Day-Ahead Market - Jul 11, 2022 Technical Workshop

In-person meeting


Day 2 of a two-day meeting

Presentation - Extended Day-Ahead Market - May 25-26, 2022

View comments

In-person meeting


Day 1 of a two-day meeting

Agenda - Extended Day-Ahead Market - May 25-26, 2022

Presentation - Extended Day-Ahead Market - May 25-26, 2022

Straw Proposal - Extended Day-Ahead Market

Transmission Revenue Recovery Examples - Extended Day-Ahead Market - May 25, 2022


Working group materials are available on the dedicated webpages linked below:


The following reports capture a final summary of the dialogue on the different elements discussed in each of the working groups along with different perspectives shared by stakeholders on the various topics discussed.

Final Summary Report - Extended Day-Ahead Market Working Group 1 - Supply Commitment and Resource Sufficiency Evaluation

Final Summary Report - Extended Day-Ahead Market Working Group 2 - Transmission Commitment and Congestion Rent Allocation

Final Summary Report - Extended Day-Ahead Market Working Group 3 - Greenhouse Gas Accounting and Costs

Web meeting


Presentation - Extended Day-Ahead Market Working Groups - March Debrief Meeting - Mar 18, 2022

Web meeting


Presentation - Extended Day-Ahead Market Working Group February Debrief - Feb 16, 2022

Web meeting


Presentation - Extended Day-Ahead Market - Stakeholder Working Group Organization and Logistics - Dec 16, 2021

Web meeting


Web meeting


Responses to Stakeholder Questions - Extended Day-Ahead Market Common Design Principles

Agenda and Presentation - Extended Day-Ahead Market Initiative Foundational Workshop - Nov 12, 2021

BPA Questions - Common EDAM Design Principles

CPUC Questions - Common EDAM Design Principles

Energystrat Questions - Common EDAM Design Principles

PGP Questions - Common EDAM Design Principles

Powerex Questions - Common EDAM Design Principles

PPC Questions - Common EDAM Design Principles

View comments

Web meeting


Archived materials (2019 - 2020)


All initiative materials dating from September 2019 to October 2020 shown below are considered historical and should be used for reference only. Documents after that time are relevant to the active stakeholder process, which reconvened in October 2021.

Web meeting


View comments

Web meeting


Presentation - Extended Day-Ahead Market Bundle 1 Straw Proposal Meeting - Jul 27-29, 2020

Examples - Transfer Revenue and ITC Congestion Revenue

Straw Proposal - Extended Day-Ahead Market - Bundle One Topics

Web meeting


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

In-person meeting


Presentation - Extended Day-Ahead Market - California ISO

Presentation - Extended Day-Ahead Market - Resource Sufficiency Evaluation - EIM Entities

Presentation - Extended Day-Ahead Market - Transmission Provision - EIM Entities

Presentation - Extended Day-Ahead Market - Congestion Rents - EIM Entities

Training


Web meeting


Presentation - Extended Day-Ahead Market Enhancements - Oct 17, 2019

Issue Paper - Extended Day-Ahead Market

Web meeting


Presentation - Extended Day-Ahead Market Feasibility Assessment Update from EIM Entities - Oct 3, 2019

Public Comment Letter from EIM Entites re Extended Day-Ahead Market - Sep 16, 2019

Briefing on Extended Day-Ahead Market Initiative - Presentation - Sep 2019