History and Background

The California Public Utilities Commission opened this proceeding through an Order Instituting Rulemaking (OIR) adopted on July 16, 2020. This proceeding (R.20-07-013) will build on requirements for the utility risk assessment and mitigation framework adopted in the Safety Model Assessment Proceeding (S-MAP), A. 15-05-002 et al, and in R.13-11-006, the Risk-Based Decision-Making proceeding.

Phase 2 of this proceeding modified the Risk-Based Decision-Making Framework (RDF) adopted in Decision (D.) 18-12-014. Within Phase 2, D. 22-12-027 replaced the “Multi-Attribute Value Function” (MAVF) with a Cost-Benefit Approach that includes standardized dollar valuations of Safety, Electric Reliability and Gas Reliability Consequences from Risk Events. This modification simplifies the RDF calculations the Commission requires from the electric and gas investor-owned utilities (IOUs), as shown in the following hypothetical examples:

Table A: Use of MAVF Approach to Calculate a Risk Score

Attributes

Natural
Units

Value

Lower
Bound

Upper
Bound

Percent of
Range

Scaling
Function

Scaled
Score

Weight

Weighted
Risk Score*

Safety

Fatalities

20

0

100

20%

Linear

20

50%

10

Reliability

CMI

500minutes

0

2billion

25%

Linear

25

25%

6.25

Financial

Dollars ($)

$1billion

$0

$2billion

50%

Linear

50

25%

12.5

Total Weighted Risk Score

28.75

 

Table B: Use of Cost-Benefit Approach to Calculate a Monetized Risk Value

Attributes

Natural
Units

Valuea

Scaling Function

Dollar
Value of Attributes*

Monetized
Risk Value**

Safety

Fatalities

20

Linear

$10 M/fatality

$200 M

Reliability

CMI

500 minutes

Linear

$2.50 M/CMI

$1.25 B

Financial

Dollars ($)

$1billion

Linear

$1

$1B

Total Monetized Risk Value

$2.45 B

* The Dollar Value of Attributes is also referred to as the Trade-off Value.

** Monetized Risk Value = Value x Dollar Value of Attributes.

This shift from the MAVF to the Cost-Benefit Approach provides for greater clarity and transparency when assessing risks and mitigations. D.22-12-027 requires the IOUs to implement the modified RDF to assess and rank risks and mitigations in their Risk Assessment and Mitigation Phase (RAMP) and General Rate Case (GRC) filings, starting with Pacific Gas and Electric Company’s (PG&E) 2024 RAMP filing. 

Roadmap of Topics for Phase 3 issued on March 13, 2023

Prehearing Conference held on April 11, 2023

    Transcript

Phase 3 Scoping Memo issued on May 31, 2023

Phase 3 Ruling Updating Procedural Schedule issued on August 9, 2023

Phase 3 Scoping and Ruling Updating Schedule issued on October 13, 2023

Phase III Schedule

 

 

Workshop #6 December 6, 2023, Tail Risk: Non-Wildfire Risks and Granularity of Tranches

Workshop #6 Planning Questions (November 15, 2023)

Sempra Companies Party Whitepaper on Tail Risk (November 22, 2023)

Joint Utility Whitepaper on Tail Risk (November 22, 2023)

TURN Party Proposal on Granularity of Tranches (November 22, 2023)

Joint Utility Proposal on Granularity of Tranches (November 22, 2023)

Agenda

Workshop Recording 

Master Slide Presentation

 

Workshop #5 October 25, 2023, Discount Rates and RAMP Reporting Templates

Workshop #5 Planning Questions (October 5, 2023)

CalAdvocates Party Proposal on Risk Mitigation Reporting Templates (October 11,2023)

CalAdvocates Draft Reporting Template (October 11,2023)

TURN Party Proposal on Discount Rates (October 11,2023)

SPD Party Proposal on Discount Rates (October 11,2023)

CalAdvocates Final Version of Reporting Template (October 31, 2023)

Agenda

Workshop Recording 

Master Slide Presentation

 

Workshop #4 October 4, 2023, Risk Scaling **Possible additional date of October 6, 2023, if needed.

Workshop #4 Planning Questions (September 14, 2023)

TURN Party Proposal on Risk Scaling (9/22/2023)

PG&E Proposal on Risk Scaling – A market-based Approach (9/22/2023)

PG&E Proposal Risk Scaling Model (9/22/2023)

Agenda

Workshop Recording 

Master Slide Presentation

 

Workshop #3 September 13,2023, Climate Change

Workshop #3 Planning Questions (August 23, 2023)

SPD Staff Proposal on Climate Change and the Risk-based Decision-making Framework

PG&E Whitepaper on Integrating Enterprise Risk Modeling and Climate Vulnerability Assessment to Enhance IOU Resilience

Agenda

  Workshop Recording

  Master Slide Presentation

 

Workshop #2 July 26, 2023, Tail Risk: Consequence Modeling

Workshop #2 Planning Questions (July 5, 2023)

Mussey Grade Road Alliance Tail Risk Pre-Workshop White Paper (July 13, 2023)

   Agenda

   Workshop Recording

 Master Slide Presentation

 

Workshop #1 July 12, 2023, Evaluation of Post-Test Years & Uncertainty: Transparency

Workshop #1 Planning Questions (June 21, 2023)

SPD Post-Test Years Pre-Workshop Proposals (June 28, 2023)

SPD Transparency Pilot Key Observations Pre-Workshop Report (June 28, 2023)

     Agenda

         Workshop Recording

         Master Slide Presentation

The issues to be determined in Phase II of this proceeding will be revisited at the conclusion of Phase I and may be further outlined in a second Scoping Memo. The issues to be considered will broadly include refining the RDF, considering a risk tolerance standard, and developing next steps.

TWG #5 August 18, 2022 The main purpose of this Technical Working Group session is to provide a platform for PG&E and SCE to present and discuss concerns regarding Phase II Staff Proposal recommendations.  

     Agenda

         Workshop Recording

         PG&E Presentation

    Dr. Ali Mosleh Presentation   

      Level 4 Ventures White Paper (as referenced during meeting)

 

Workshop #2 June 29, 2022 Technical Working Group Safety Policy Division (SPD) staff will present an initial draft set of Staff Proposal recommendations to the parties regarding the Phase II subset of issues in (R.)20-07-13.

         Agenda

         Workshop Recording

         Master Slide Presentation

 

TWG #4 June 16, 2022 Technical Working Group Presentation and Discussion where parties will develop the details of implementation for the Level 4 Recommendation identified as “Risk Modeling 3,” and parties will discuss the following scoping memo question: “Should the Commission consider impacts on environmental and social justice communities, including the extent to which action in this proceeding impacts the achievement of any of the nine goals of the Commission’s Environmental and Social Justice (ESJ) Action Plan?”

         Agenda

         Workshop Recording

         Master Slide Presentation

 

TWG #3 June 2, 2022 Technical Working Group Presentation and Discussion to develop the details of implementation of Level 4 Recommendation identified as "MAVF 3"

         Agenda

         Workshop Recording

         Master Slide Presentation

 

TWG #2 May 20, 2022 Technical Working Group Presentation and Discussion to develop the details of implementation of Level 4 Recommendation identified as "MAVF 2"

         Agenda

         Workshop Recording  

         Master Slide Presentation

 

TWG #1 April 20, 2022 Technical Working Group Presentation and Discussion of Level 4 IOU Baseline Assessment Revised Recommendations

         Agenda

         Workshop Recording  

         Master Slide Presentation

         Level 4 Recommendations Report

 

Workshop #1 - March 3, 2022 - Presentation of the Level 4 IOU Baseline Assessment

  Workshop Agenda

 Workshop Slides

 Workshop Recording

       Risk Spend Efficiency Assessment - IOU Baseline Assessment

 Workshop Model:  Risk Spend Efficiency Model

 Workshop Model:  Randarray

 Workshop Model:  Dynamic Array RSE

 Workshop Model:  RSE Multiple Libraries

 Workshop Model:  Filtered Risk Rollup

 Workshop Model:  Wheels of Misfortune

Track 1: Clarifying Risk Decision Framework (RDF) Technical Requirements 

o   Track 1 will consider whether there are discrete technical questions regarding the RDF that the Commission should clarify in the short term (larger, more substantive revisions to the RDF will be considered in Phase II).

 

August 18, 2021 Technical Working Group

         Agenda

         Workshop Recording

         Master Slide Presentation

 

July 28, 2021 Technical Working Group

         Agenda

         Workshop Recording

         Joint IOU's Slide Presentation

         CalAdvocates' Slide Presentation

 

July 16, 2021 Technical Working Group

         Agenda

         Workshop Recording

         SPD's Slide Presentation

     Joint IOU's Slide Presentation

     Cal Advocates' Slide Presentation

     MGRA's Slide Presentation

   

June 22, 2021 Technical Working Group

         Agenda

         Workshop Recording

         SPD's Slide Presentation

     PG&E's Slide Presentation

     SCE's Slide Presentation

 

May 6, 2021 Technical Working Group

         Agenda

         Workshop Recording

         Master Slide Presentation

 

April 14, 2021 Technical Working Sub-Group

         Agenda

         Workshop Recording

         PG&E's Slide Presentation

     PG&E's Illustrative Example

 

March 10, 2021 Technical Working Group

         Agenda

         Workshop Recording

         Master Slide Presentation

 

February 3, 2021 Technical Working Group

         Agenda

         Workshop Recording

         Master Slide Presentation

 

December 15, 2020 Workshop

·         Agenda

·         Workshop Recording

·         Master Slide Presentation

  

Track 2: Safety and Operational Metrics 

o   Track 2 will consider safety and operational performance metrics and their application broadly. This work will include refining metrics adopted in D.19-04-020 and developing new metrics as needed. Work on metrics will address D.20-05-053, which approved PG&E’s reorganization plan and directed the development of safety and operational metrics for PG&E linked to an Enhanced Oversight and Enforcement Process. 

 

August 19, 2021 Technical Working Group

         Workshop Recording  

         Revised Safety Performance Metrics 

 

May 4, 2021 Technical Working Group

         Agenda

         Workshop Recording  

         Master Slide Presentation  

         Secondary Master Table Slide Presentation         

April 1, 2021 Technical Working Group

         Agenda

         Master Slide Presentation

 

January 28, 2021 Workshop

          Agenda

          Workshop Recording

          Master Slide Presentation 

 

Track 3: Refining RAMP and Related Procedural Requirements

o   Track 3 will focus on whether there are RAMP, general rate case (GRC) and Risk Spending Accountability Reports (RSAR) procedural or definitional requirements that the Commission should refine or clarify.

February 9, 2021 Workshop  

           Agenda

           Workshop Recording

           Master Slide Presentation

 

Track 4: Small and Multi-Jurisdictional Utilities (SMJUs) 

o   Track 4 will consider questions unique to the SMJUs - To occur at a future date

         Agenda

         Workshop Recording

         Master Slide Presentation