2023-2024 Transmission planning process

Started: Jan 16, 2023

Leads
Jeff Billinton

The California ISO 2023-2024 transmission planning cycle involves key stakeholder activities from 2023 through early 2024. 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
Dec 4, 2023 Comments due
Mar 31, 2024* Draft transmission plan posting
Apr 16, 2024* Meeting
May 2024* Board of Governors meeting

Activities

Web meeting


Presentation - 2023-2024 Transmission Planning Process - Nov 16, 2023

Submit comments Due: Dec 04, 05:00 pm

Web meeting


ISO Responses to Comments - 2023-2024 Transmission Planning Process - Sep 26-27, 2023

CAISO Presentation - 2023-2024 Transmission Planning Process - Sep 27, 2023

GLW Presentation - 2023-2024 Transmission Planning Process - Sep 27, 2023

PG&E Presentation - 2023-2024 Transmission Planning Process - Sep 27, 2023

SCE Presentation - 2023-2024 Transmission Planning Process - Sep 27, 2023

SDGE Presentation - 2023-2024 Transmission Planning Process - Sep 27, 2023

Web meeting


Agenda - 2023-2024 Transmission Planning Process - Sep 26-27, 2023

CAISO Presentation - 2023-2024 Transmission Planning Process - Sep 26, 2023

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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.


Reliability assessment

2023-2024 Preliminary Reliability Assessment Results

2023-2024 Final Reliability Results


Final Study Plan - 2023-2024 Transmission Planning Process

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.

Web meeting


ISO Responses to Comments - 2023-2024 Transmission Planning Process - Eldorado 230kV Short Circuit Duty Mitigation Project - Jun 28, 2023

Presentation - 2023-2024 Transmission Planning Process - Jun 28, 2023

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Web meeting


ISO Responses to Comments – 2023-2024 Transmission Planning Process – Feb 28, 2023

Draft Study Plan - 2023-2024 Transmission Planning Process - Feb 28, 2023

Presentation - 2023-2024 Transmission Planning Process - Feb, 28, 2023

Agenda - 2023-2024 Transmission Planning Process - Feb, 28, 2023

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