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2021-2022 Transmission planning process

2021-2022 Transmission planning process

Started: Feb 18, 2021

Leads
Jeff Billinton

The California ISO 2021-2022 transmission planning cycle involves key stakeholder activities from 2021 through early 2022. Each year, the ISO conducts its transmission planning process to identify potential system limitations as well as opportunities for system reinforcements that improve reliability and efficiency. The transmission planning process core product is the ISO Transmission Plan, which provides an evaluation of the ISO control grid, examines conventional grid reliability requirements and projects, summarizes key collaborative activities and provides details on key study areas and associated findings.

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Status

Development	Decision	Implementation	Completed/Closed
Mar 31, 2021 Final study plan posted	Mar 16-17, 2022 ISO Board of Governors approval - transmission plan

Activities

Qualified project sponsors and proposals	List of Qualified Project Sponsors and Proposals - Collinsville Substation Project 10/24/2022 List of Qualified Project Sponsors and Proposals - Manning Substation Project 10/24/2022	Comments
Validated project sponsor applications	List of Validated Project Sponsor Applications - Newark - Northern Receiving Station HVDC Project 10/17/2022 List of Validated Project Sponsor Applications - Metcalf - San Jose B HVDC Project 10/17/2022 List of Validated Project Sponsor Applications - Collinsville 500/230 kV Substation Project 09/02/2022 List of Validated Project Sponsor Applications - Manning 500/230 kV Substation Project 09/02/2022	Comments
Web meeting	ISO Responses to Comments - 2021-2022 Transmission Planning Process - Accessing Out-of-State Wind Resources - Jun 27, 2022 08/25/2022 Request for Expressions of Interest - Accessing Out-of-State Wind Resources 08/25/2022 Presentation - 2021-2022 Transmission Planning Process - Jun 27, 2022 06/23/2022 White Paper - 2021-2022 Transmission Planning Process - Accessing Out-of-State Wind Resources to Meet California Resource Adequacy Requirements - Jun 20, 2022 06/20/2022	View comments Comments
	ISO Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix A - Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix B - Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix C - Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix D - Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix E - Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix F - Board Approved 2021-2022 Transmission Plan 03/18/2022 Appendix G - Board Approved 2021-2022 Transmission Plan 04/12/2022	Comments
Phase 3 - select project sponsor	Project sponsors submit proposals for transmission solutions that are eligible for competitive solicitation and were approved by the ISO Board in the comprehensive transmission plan at the end of phase 2.	Comments
	Competitive solicitation Key Selection Factors - 2021-2022 Transmission Planning Process 03/21/2022 2021-2022 Transmission Planning Process Phase 3 Sequence Schedule 04/13/2022 San Jose Interests in New CAISO Transmission Lines 07/25/2022	Comments
Web meeting	ISO Responses to Comments Matrix - 2021-2022 Transmission Planning Process Competitive Solicitation 07/25/2022 Presentation - 2021-2022 Transmission Planning Process - Phase 3 Competitive Solicitation - Apr 20, 2022 04/19/2022	Comments
Phase 2 - conduct technical studies and develop comprehensive plan	The ISO performs technical studies, and with stakeholders develops an annual comprehensive transmission plan that examines the ISO controlled grid and reliability requirements and identifies mitigation solutions. Transmission mitigation solutions may meet reliability, economic or public policy-driven needs that support state, federal, municipal and county policy requirements and directives.	Comments
	Revised Draft 2021-2022 Transmission Plan 03/15/2022 Appendix A - Revised Draft 2021-2022 Transmission Plan 03/10/2022 Appendix B - Revised Draft 2021-2022 Transmission Plan 03/10/2022 Appendix C - Revised Draft 2021-2022 Transmission Plan 03/10/2022 Appendix D - Revised Draft 2021-2022 Transmission Plan 03/10/2022 Appendix E - Revised Draft 2021-2022 Transmission Plan 03/10/2022 Appendix F - Revised Draft 2021-2022 Transmission Plan 03/10/2022 Appendix G - Revised Draft 2021-2022 Transmission Plan 03/10/2022	Comments
Web meeting	Presentation - Draft 2021-2022 Transmission Plan - Feb 7, 2022 02/04/2022 Draft 2021-2022 Transmission Plan 01/31/2022 Appendix A - Draft 2021-2022 Transmission Plan 01/31/2022 Appendix B - Draft 2021-2022 Transmission Plan 01/31/2022 Appendix C - Draft 2021-2022 Transmission Plan 01/31/2022 Appendix D - Draft 2021-2022 Transmission Plan 01/31/2022 Appendix E - Draft 2021-2022 Transmission Plan 01/31/2022 Appendix F - Draft 2021-2022 Transmission Plan 01/31/2022 Appendix G - Draft 2021-2022 Transmission Plan 02/02/2022	View comments Comments
Web meeting	Agenda - 2021-2022 Transmission Planning Process - Nov 18, 2021 11/16/2021 Presentation - 2021-2022 Transmission Planning Process - Nov 18, 2021 11/16/2021 Written comments deadline extended from December 2 to December 6	View comments Comments
Web meeting	Day 2 Presentation - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021 PG&E Presentation - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021 SCE Presentation - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021 SDGE Presentation - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021 GLW Presentation - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021	View comments Comments
Web meeting	Agenda - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021 Day 1 Presentation - 2021-2022 Transmission Planning Process - Sep 27-28, 2021 09/23/2021	Comments
Reliability assessment	2021-2022 Final Reliability Assessment Results 10/29/2021 2021-2022 Preliminary Reliability Assessment Results 08/13/2021	Comments
Web meeting	Presentation - 2021-2022 Transmission Planning Process - Jul 27, 2021 07/23/2021 White Paper - 2021 Transmission Capability Estimates for use in the CPUC's Resource Planning Process 07/20/2021	View comments Comments
Web meeting	Special study Presentation - 20-Year Transmission Outlook - May 14, 2021 05/14/2021 This presentation includes information on the 2021-2022 Transmission Planning Process Out of State Wind Sensitivity Study.	Comments
Phase 1 - develop study plan	In collaboration with stakeholders, the ISO develops and finalizes a study plan that consists of a common set of assumptions for reliability and other planning studies the ISO will perform in Phase 2. The development of a conceptual statewide transmission plan begins in this phase and may be completed during Phase 1 or Phase 2. Stakeholders may also request economic planning studies to assess potential economic benefits (such as congestion relief) in specific areas of the grid.	Comments
Final study plan	Final 2021-2022 Study Plan 03/31/2021	Comments
Web meeting	ISO Responses to Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 07/27/2021 Draft 2021-2022 Study Plan 02/18/2021 Agenda - 2021-2022 Transmission planning Process - Feb 25, 2021 02/25/2021 Presentation - 2021-2022 Transmission Planning Process - Feb 25, 2021 02/25/2021	Comments BAMx Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 CCEW Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 09/08/2021 CPAU Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 CPUC Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 GLW Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 GLW Economic Study Request - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 LS Power Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 PAO Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 Pattern Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 PG&E Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 SDGE Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 SVP Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 SWPG Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 TANC Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 TransWest Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 Vistra Comments - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 10/25/2021 Vistra Economic Study Request - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021 Western Grid Economic Study Request - 2021-2022 Transmission Planning Process - Feb 25, 2021 Stakeholder Call 03/26/2021