Standards UpdateProject 2013-03 Geomagnetic Disturbance MitigationKenneth A. Donohoo, Oncor Electric Delivery Co LLCChairperson, GMD Task ForcePresentation to ERCOT ROSAugust 15, 2013

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Strategic direction, coordinated action

Management of HILF Event Risks

June 2010 November 2010

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Task Force Reports

• Provide a total of 55 recommendations Some propose further study Others are intended for owner/operator consideration and

implementation

November 2011 February 2012 May 2012 May 2012

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2012 Special Assessment Report

• Identifies grid vulnerabilities• Roadmap to address risks • Four high-level recommended actions

Tools for industry planners Tools for system operators Education and information exchanges Review need for Reliability Standards

• Supporting tasks for Phase 2 project

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Strategic Roadmap

Phase 2 Project Plan

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Phase 2 Overview

• Approaching mid-point of the action plan to implement recommendations from the 2012 GMD Report

• Several project plan tasks are expected to complete in 2013 Provide additional open-source tools for industry to assess risks and

evaluate mitigation strategies

• Strong collaboration with EPRI, NATF, government, and private sector researchers

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Phase 2 Project Teams

• Team 1: Planning Study and Assessment Design Chair: Russell Neal, P.E. (Southern California Edison)

• Team 2: Equipment Model Development and Validation Chair: Dr. Luis Marti (HydroOne)

• Team 3: GIC Model Development and Validation Chair: Dr. Randy Horton, P.E. (Southern Company)

• Team 4: System Operating Practices, Tools, and Training Chair: Frank Koza, P.E. (PJM)

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Phase 2 2013 Work Plan

• Tools for vulnerability assessment and planning Severe GMD event scenarios (1-in-100 year) Guide for calculating geomagnetic induced currents (GICs) Initial equipment models and guidelines for system studies

• Tools for mitigation Best-practice operating procedures (PC and OC approved) Guide for evaluating GIC mitigation measures Enhanced system operator training

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Team 1 Update

• Planning Application Guide revised with EPRI and other Task Force leaders Task force review and comment: July 18 – August 9 http://www.nerc.com/comm/PC/Pages/Geomagnetic-Disturbance-

Task-Force-(GMDTF)-2013.aspx

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Team 2 Update

• Equipment modeling and testing began in June. Additional utilities are needed to participate

• Tests/models to date (3 utilities, 4 manufacturers) Single-phase 500/16.5 kV 350 MVA SVC transformer (H1)

o Limited thermal testing datao Tested to 17 A/phaseo Manufacturer modeling to start in August 2013

3-phase, 3-limb autotransformer 240/138 kV 125 MVA (H1)o Tests limited to 30A/phase dco Manufacturer modeling report pending

Single-phase 400 MVA autotransformer (SoC)o Tests limited to 30A/phase dco Manufacturer modeling report pending

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Team 3 Update

• Final draft of GIC Application Guide• Reference storm scenario

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Team 4 Update

• Industry Survey (North American Transmission Forum Brief)• System Operator training in development

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Looking Ahead

• A Reliability Assessment carried out by planners and planning coordinators in early 2014 will employ the Phase 2 Project tools

• Results will be used to: Improve next iteration of tools and models Inform the development and implementation of Standards Identify issues for further study Update the GMD Interim Report

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Order No. 779

• FERC Order directs NERC to file standards that address geomagnetic disturbance (GMD) impacts in two stages: Operating Procedures (file by January 2014) Vulnerability assessments and mitigation plans (file by January 2015)

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Standard Drafting Team

Name Registered Entity

Frank Koza (Chair) PJM Interconnection

Randy Horton (Vice-chair) Southern Company

Donald Atkinson Georgia Transmission Corporation

Emanuel Bernabeu Dominion Resource Services, Inc

Kenneth Fleischer NextEra Energy

Luis Marti Hydro One Networks

Antti Pulkkinen NASA Goddard Space Flight Center

Qun Qiu American Electric Power

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Stage 1: Operating Procedures

• Standard(s) that require entities to implement Operating Procedures to mitigate the effects of GMDs

• Requirements should allow procedures to be tailored based on entity-specific factors such as geography, geology, or topology

• Consider coordination of procedures across regions• Board approval by November 2013

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Stage 2: Assessments and Mitigation

• Develop Standards that require assessment of benchmark GMD events and strategies to mitigate identified impacts

• Research and tools being produced through the GMD Task Force Phase 2 project provide the technical foundation

• Board approval by November 2014

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Purpose

• To mitigate the effects of geomagnetic disturbance (GMD) events by implementing Operating Procedures

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Applicability

• Reliability Coordinators• Transmission Operators and Balancing Authorities

Limited to those with an area that includes any transformer with high side terminal voltage greater than 200 kV

• Effects of GMD on systems below 200 kV are far less due to higher line resistance (see Chapter 8 of 2012 GMD Report) http://www.nerc.com/pa/RAPA/ra/Pages/default.aspx

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Reliability Coordinators

• Each Reliability Coordinator shall develop, maintain, and implement a GMD Operating Plan that includes: A description of activities to mitigate the effects of GMD events A process to determine that the GMD Operating Procedures in the

Reliability Coordinator Area are coordinated and compatible

• Provides a wide-area view for effective coordination

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Transmission Operators and Balancing Authorities

• Each applicable entity shall develop, maintain, and implement GMD Operating Procedures that include: Steps for disseminating space weather information to System Operators Steps to be employed by System Operators that are coordinated with its

Reliability Coordinator to mitigate the effects on the system from GMD Predetermined trigger conditions for initiating and terminating steps or

tasks in the Operating Procedure

• GMD Task Force Operating Procedure templates provide steps and trigger conditions for entities to consider

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Implementation

• FERC Order specifies six-month implementation• In jurisdictions where regulatory approval is required:

Standard becomes effective by the first day of the first calendar quarter, six calendar months following applicable regulatory approval

• In jurisdictions where regulatory approval is not required: Standard becomes effective by the first day of the first calendar quarter,

six calendar months following NERC Board of Trustees approval

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Schedule

• Comment Period: June 27 – August 12 Ballot pool forming: June 27 – July 26

• Industry Webinar: July 30 | 11:00 a.m. - 12:30 p.m. EDT• Ballot and Non-binding poll: August 2 – 12• SDT Meeting to consider comments and revise: August 21-23• Board Approval by November 2013

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NEXT NERC GMDTF Face to Face Meeting Nov. 13-15, 2013, Atlanta, GA

Standard Project 2013-03 Geomagnetic Disturbance Mitigation http://www.nerc.com/pa/Stand/Pages/Project-2013-03-Geomagnetic-Disturbance-Mitigation.aspx

NERC GMDTF Web Page2013http://www.nerc.com/comm/PC/Pages/Geomagnetic-Disturbance-Task-Force-(GMDTF)-2013.aspx

2010-2012http://www.nerc.com/comm/PC/Pages/Geomagnetic%20Disturbance%20Task%20Force%20(GMDTF)/Geomagnetic-Disturbance-Task-Force-GMDTF.aspx

Meeting & Links