2022-2023 Transmission planning process

Started: Jan 13, 2022

Leads
Jeff Billinton

The California ISO 2022-2023 transmission planning cycle involves key stakeholder activities from 2022 through early 2023. 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.

Status

Development Decision Implementation Completed/Closed
Jun 30, 2023 Final study plan posted
May 18, 2023 Board of Governors approval - transmission plan

Activities


Imperial Valley-North of SONGS Project Approved Project Sponsor Report


North Gila-Imperial Valley 2 500kV Line Project Sponsor Selection Report - Final Report


Revised Schedule - 2022-2023 Transmission Planning Process - Phase 3 Sequence


Qualified project sponsor applications

List of Qualified Project Sponsor Application North Songs to Imperial Valley 500kv Substation and Transmission Line Project

List of Qualified Project Sponsor Applications - North of SONGS to Serrano 500kV Transmission Line Project

Web meeting


ISO Responses to Comments - 2022-2023 Transmission Planning Process - Nov 7, 2023 Stakeholder Meeting

Presentation - 2022-2023 Transmission Planning Process - Nov 7, 2023

Idaho Power Letter to CAISO Regarding SWIP North

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Qualified project sponsor applications

List of Qualified Project Sponsor Applications - North Gila to Imperial Valley 2 500kV Transmission Line Project


Validated project sponsor applications

List of Validated Project Sponsor Applications - North Gila to Imperial Valley 2 500kV Transmission Line Project

List of Validated Project Sponsor Applications - North of SONGS to Imperial Valley 500kV Substation and Transmission Line Project

List of Validated Project Sponsor Applications - North of SONGS to Serrano 500kV Transmission Line Project

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.

Web meeting


Competitive Solicitation

Cost and Cost Containment Workbook - 2022-2023 Transmission Planning Process Phase 3

ISO Responses to Comments Matrix - 2022-2023 Transmission Planning Process Competitive Solicitation

Key Selection Factors - 2022-2023 Transmission Planning Process

2022-2023 - Transmission Planning Process Phase 3 Sequence Schedule

Presentation - 2022-2023 Transmission Planning Process - Phase 3 Competitive Solicitation - Jun 26, 2023

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.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.


ISO Board Approved 2022-2023 Transmission Plan

Appendix A - Board Approved 2022-2023 - Transmission Plan

Appendix B - Board Approved 2022-2023 - Transmission Plan

Appendix C - Board Approved 2022-2023 -Transmission Plan

Appendix D - Board Approved 2022-2023 - Transmission Plan

Appendix E - Board Approved 2022-2023 -Transmission Plan

Appendix F - Board Approved 2022-2023 - Transmission Plan

Appendix G - Board Approved 2022-2023 - Transmission Plan

Appendix H - Board Approved 2022-2023 - Transmission Plan

Appendix I - Board Approved 2022-2023 - Transmission Plan Revised

Appendix J - Board Approved 2022-2023 - Transmission Plan

Appendix K - Board Approved 2022-2023 - Transmission Plan

Addendum 1 - Board Approved - 2022-2023 Transmission Plan


Revised Draft 2022-2023 Transmission Plan

Appendix A - Revised Draft 2022-2023 Transmission Plan

Appendix B - Revised Draft 2022-2023 Transmission Plan

Appendix C - Revised Draft 2022-2023 Transmission Plan

Appendix D - Revised Draft 2022-2023 Transmission Plan

Appendix E - Revised Draft 2022-2023 Transmission Plan

Appendix F - Revised Draft 2022-2023 Transmission Plan

Appendix G - Revised Draft 2022-2023 Transmission Plan

Appendix H - Revised Draft 2022-2023 Transmission Plan

Appendix I - Revised Draft 2022-2023 Transmission Plan

Appendix J - Revised Draft 2022-2023 Transmission Plan

Appendix K - Revised Draft 2022-2023 Transmission Plan


Alternatives to Trout Canyon-Lugo 500 kV

Letter - Lotus Infrastructure Partners - Apr 24, 2023

Letter - GridLiance West - May 17, 2023

Letter - NextEra Resources - May 17, 2023

Letter - Coalition for Optimization of Renewable Development - May 31, 2023

Web meeting


Agenda - 2022-2023 Transmission Planning Process - Apr 11, 2023

Presentation - 2022-2023 Transmission Planning Process - Apr 11, 2023

Draft 2022-2023 Transmission Plan

Appendix A - Draft 2022-2023 Transmission Plan

Appendix B - Draft 2022-2023 Transmission Plan

Appendix C - Draft 2022-2023 Transmission Plan

Appendix D - Draft 2022-2023 Transmission Plan

Appendix E - Draft 2022-2023 Transmission Plan

Appendix F - Draft 2022-2023 Transmission Plan

Appendix G - Draft 2022-2023 Transmission Plan

Appendix H - Draft 2022-2023 Transmission Plan

Appendix I - Draft 2022-2023 Transmission Plan

Appendix J - Draft 2022-2023 Transmission Plan

Appendix K - Draft 2022-2023 Transmission Plan

Addendum 1 - Draft 2022-2023 Transmission Plan

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Letter received from President Reynolds, CPUC

Letter - 2022-2023 Transmission Planning Process - Jan 13, 2023

Web meeting


Agenda - 2022-2023 Transmission Planning Process - Nov 17, 2022

Presentation - 2022-2023 Transmission Planning Process - Nov 17, 2022

ISO Responses to Comments - 2022-2023 Transmission Planning Process - Nov 17, 2022

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Web meeting


Day 2 of a two-day meeting

Presentation - 2022-2023 Transmission Planning Process - Sep 28, 2022

GLW Presentation - 2022-2023 Transmission Planning Process - Sep 28, 2022

PG&E Presentation - 2022-2023 Transmission Planning Process - Sep 28, 2022

SCE Presentation - 2022-2023 Transmission Planning Process - Sep 28, 2022

SDGE Presentation - 2022-2023 Transmission Planning Process - Sep 28, 2022

ISO Responses to Comments - 2022-2023 Transmission Planning Process - Sept 27-28, 2022

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Web meeting


Day 1 of a two-day meeting

Agenda - 2022-2023 Transmission Planning Process - Sep 27-28, 2022

Presentation - 2022-2023 Transmission Planning Process - Sep 27, 2022


Reliability assessment

2022-2023 Preliminary Reliability Assessment Results

2022-2023 Final Reliability Results

Web meeting


2022-2023 Transmission Planning Process - Portfolio Transmittal Letter

CAISO Presentation - 2022-2023 Transmission Planning Process - Jul 6, 2022

CEC Presentation - 2022-2023 Transmission Planning Process - Jul 6, 2022

CPUC Presentation (Updated) - 2022-2023 Transmission Planning Process - Jul 6, 2022

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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.


Final Study Plan - 2022-2023 Transmission Planning Process

Web meeting


ISO Responses to Comments Matrix - 2022-2023 Transmission Planning Process - Feb 28, 2022

Presentation - 2022-2023 Transmission Planning Process - Feb 28, 2022

Draft Study Plan - 2022-2023 Transmission Planning Process

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