INITIATIVE:
Transmission service and market scheduling priorities

Started: May 20, 2021

Leads
Milos Bosanac

This initiative will evaluate the development of this holistic, long-term, framework while also evaluating near-term enhancements to the current scheduling priority framework that can be implemented by next summer.

(formerly External load forward scheduling rights process)

Status

Proposal Development Decision Implementation Completed/Closed
Phase 2
Q1 2024* Track 2 FERC filing
Track 1
Oct 30, 2023 FERC approval (ER23-2510)
Jul 28, 2023 Tariff amendment (ER23-2510)
Feb 01, 2023 Board of Governors approval - phase 2
Monthly: Apr 17, 2024 Activation
Daily: May 24, 2024 Activation
Implementation milestones
Phase 1
Jan 11, 2022 Revised draft tariff language posted
Dec 10, 2021 Draft final proposal posted
Mar 15, 2022 FERC approval (ER22-906)
Jan 27, 2022 Tariff amendment (ER22-906)
Jan 20, 2022 Board of Governors approval - phase 1

Spring 2022
Implementation milestones
Completed

Phase 2

Web meeting


Web meeting


Presentation - Transmission Service and Market Scheduling Priorities - Jan 17, 2024

Web meeting


Presentation - Transmission Service Market Scheduling Priorities Phase 2 - Jan 09, 2024


Final Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Section 23, Section 36, Appendix A

Final Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix GG

Final Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix GG Appendices

Final Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix HH

Final Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix KK

Filing


Web meeting


Revised Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Section 23, Section 36, Appendix A

Revised Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix KK

Revised Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix HH

Revised Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix GG Appendices

Revised Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix GG

View comments

Web meeting


Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Section 23, Section 36, Appendix A

Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix GG

Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix GG Appendices

Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix HH

Draft Tariff Language - Track 2 - Transmission Service and Market Scheduling Priorities Phase 2 - Appendix KK

View comments

Web meeting


Revised Draft Tariff Language - Track 1 - Transmission Service and Market Scheduling Priorities Phase 2

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Web meeting


Draft Tariff Language - Transmission Service and Market Scheduling Priorities Phase 2

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Notice of Decisional Classification - Transmission Service and Market Scheduling Priorities Phase 2 - Jan 2023


Final Proposal - Transmission Service and Market Scheduling Priorities Phase 2

OATI Opinion - Transmission Service and Market Scheduling Priorities Phase 2 Final Proposal

Web meeting


Market Surveillance Committee meeting

Web meeting


Presentation - Transmission Service and Market Scheduling Priorities Phase 2 - Dec 16, 2022
Reposted to clarify that the item will be presented to ISO Board of Governors in February 2023 for decision and the WEIM Governing Body in an advisory role.

Draft Final Proposal - Transmission Service and Market Scheduling Priorities Phase 2
Reposted to remove reference on page 7 inadvertently referring to prepayment of transmission, consistent with rest of proposal.

View comments

Web meeting


Presentation - Transmission Service and Market Scheduling Priorities Phase 2 - Aug 11, 2022

Straw Proposal - Transmission Service and Market Scheduling Priorities Phase 2

Approach 1 Data - Transmission Service and Market Scheduling Priorities Phase 2 - Aug 24, 2022

Approach 2 Data - Transmission Service and Market Scheduling Priorities Phase 2 - Aug 24, 2022

View comments

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities Working Group - Feb 14, 2022

Vistra and Powerex Presentation - Transmission Services and Market Priorities Long-Term Framework - Feb 14, 2022

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities - Working Groups 2 and 3 - Feb 4, 2022

SRP Presentation - Transmission Service and Market Scheduling Priorities - Working Groups 2 and 3 - Feb 4, 2022

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities - Working Groups 2 and 3 - Jan 31, 2022

IPC Presentation - Transmission Service - Market Scheduling Priorities - Working Group 2 - Jan 31, 2022

IPC Presentation - Transmission Service - Market Scheduling Priorities - Working Group 3 - Jan 31, 2022

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities Working Groups 2 and 3 - Jan 14, 2022

BPA Presentation - Transmission Service and Market Scheduling Priorities Working Group 2 - Jan 14, 2022

BPA Presentation - Transmission Service and Market Scheduling Priorities Working Group 3 - Jan 14, 2022

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Dec 10, 2021

Joint CA LSEs Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Dec 10, 2021

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Nov 30, 2021

BPA Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Nov 30, 2021

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Nov 19, 2021

SRP Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Nov 19, 2021

Web meeting


CAISO Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Nov 15, 2021

IPC Presentation - Transmission Service and Market Scheduling Priorities - Working Group 1 - Nov 15, 2021

Web meeting


CAISO Presentation - External Load Forward Scheduling Rights Process - Working Group 1 - Nov 10, 2021

Vistra Presentation - External Load Forward Scheduling Rights Process - Working Group 1 - Nov 10, 2021

Phase 1

Completed

OUTCOME: The California ISO implemented transmission service and market scheduling priorities phase 1 (TSMSP1) on June 1, 2022. The TSMSP1 implementation benefits market participants by extending the current, interim wheeling through scheduling priorities framework valid to May 1, 2024, by providing additional visibility of the non-RA capacity for supporting resources (including applicable notifications), by providing clarifications regarding high priority exports (PT exports) from Variable Energy Resources (VER), by publishing additional relevant and requested data and information, and by consolidating of terms applicable to exports and wheels.

Training



Notice of Decisional Classification - Transmission Service and Market Scheduling Priorities

Filing


Web meeting


Revised Draft Tariff Language - Transmission Service and Market Scheduling Priorities - Phase 1 (Effective Jun 1, 2024)

Revised Draft Tariff Language - Transmission Service and Market Scheduling Priorities - Phase 1 (Effective Jun 1, 2022 through May 1, 2024)

Web meeting


ISO Responses to Stakeholder Comments – Transmission Service and Market Scheduling Priorities Phase 1 - Draft Final Proposal

Presentation - Transmission Service and Market Scheduling Priorities - Dec 20, 2021

Draft Tariff Language - Transmission Service and Market Scheduling Priorities - Phase 1 (Effective Jun 1, 2022)

Draft Tariff Language - Transmission Service and Market Scheduling Priorities - Phase 1 (Effective Jun 1, 2024)

Draft Final Proposal - Transmission Service and Market Scheduling Priorities - Phase 1

View comments

Web meeting


Presentation - External Load Forward Scheduling Rights Process - Sep 9, 2021

Issue Paper - External Load Forward Scheduling Rights Process

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Web meeting


ISO Presentation - External Load Forward Scheduling Rights Process Workshop - Jul 13, 2021

SRP, APS, and TEP Presentation - External Load Forward Scheduling Rights Process Workshop - Jul 13, 2021

Powerex Presentation - External Load Forward Scheduling Rights Process Workshop - Jul 13, 2021

Joint LSE Presentation - External Load Forward Scheduling Rights Process Workshop - Jul 13, 2021
CalCCA, PG&E, SCE, SDG&E and Six Cities

BANC Presentation - External Load Forward Scheduling Rights Process Workshop - Jul 13, 2021

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