Portfolios and Modeling Assumptions for the 2023-2024 Transmission Planning Process

The Integrated Resource Planning (IRP) process develops a resource portfolio(s) annually as a key input to the California Independent System Operator's (CAISO) Transmission Planning Process (TPP) base case studies, which includes a reliability base case portfolio and a policy-driven base case portfolio. The California Public Utilities Commission (CPUC) may also transmit additional resource portfolios as inputs for sensitivity studies that test the implications of various policy futures. This page contains documentation relevant to the development of resource portfolios for the 2023-2024 TPP.

Decision Ordering Supplemental Mid-Term Reliability Procurement, 02/28/2023

• Decision Fact Sheet, 03/14/2023

Administrative Law Judge's Ruling Seeking Comments on Portfolios to be used in the 2023-2024 TPP, 10/07/2022

Workshops

Webinar – 10/20/2022: Proposed Portfolios and Busbar Mapping Methodology for the 2023-2024 TPP

Presentation Slide: Proposed Portfolios and Busbar Mapping for the 23-24 TPP

Webinar Recording

Workshop Q&A

Methodology for Resource-to-Busbar Mapping

Methodology for Resource-to-Busbar Mapping & Assumptions for the 23-24 TPP, 01/13/2023

Methodology for Resource-to-Busbar Mapping & Assumptions for the 23-24 TPP (red-lined from the 2022-10-07 ruling version), 01/13/2023

Methodology for Resource-to-Busbar Mapping & Assumption for the TPP, 10/07/2022

Methodology for Resource-to-Busbar Mapping & Assumption for the TPP (red-lined from the 2021-22-12 version), 10/07/2022

Modeling Assumptions for the 2023-2024 Transmission Planning Process

• Final Modeling Assumptions for the 23-24 TPP Report, 02/23/2023 
• Proposed Decision Report, 01/18/2023
• Red-line Comparison, 02/23/2023  

Portfolio Busbar Mapping Results

CPUC and CAISO staff technical adjustments to the final 30 MMT base case portfolio (2035) — Updated 2035 Busbar Mapping Dashboard, 08/11/2023  

Final Busbar Mapping Dashboard Workbooks - 30 MMT high electrification base case portfolios

• Final 2033 Busbar Mapping Dashboard, 02/22/2023
• Final 2035 Busbar Mapping Dashboard, 02/22/2023

Final Busbar Mapping Dashboard Workbook – Offshore wind sensitivity portfolio

• Final 2035 Offshore Wind Sensitivity Busbar Mapping Dashboard, 02/23/2023    

Proposed Decision Busbar Mapping Dashboard Workbooks - 30 MMT high electrification base case portfolios

• 2033 Busbar Mapping Dashboard, 01/13/2023
• 2035 Busbar Mapping Dashboard, 01/13/2023

October Ruling Preliminary Busbar Mapping Dashboard Workbooks - Proposed 30 MMT high electrification base case portfolios.

• 2033 Busbar Mapping Dashboard, 10/07/2022
• 2035 Busbar Mapping Dashboard, 10/07/2022

Key Busbar Mapping Input Documents:

• Baseline Reconciliation and In-Development Resources, 03/20/2023
• CAISO Interconnection Queue Analysis, 01/18/2023
• Retirement List of Thermal Generation Units, 01/18/2023

RESOLVE PACKAGE:  This package contains the RESOLVE model inputs and results for the three portfolios.  These portfolios were developed using the same modeling assumptions as the 2021 Preferred System Plan (PSP) 38 MMT by 2030 portfolio adopted by D.22-02-004 with a few changes and updates described in the ruling.

2023-2024 TPP RESOLVE Portfolio Package

The zip file contains these components:

• Excel-based Scenario Tool
• Excel-based Resource Costs and Build
• Excel-based Results Viewer
• Inputs data files for the three portfolios
• Results data files for the three portfolios

Reliability Analysis

SERVM Analysis of the 30 MMT with additional transportation electrification base case portfolio for the 23-24 TPP, 4/23/2023