Project 2013-03 Geomagnetic Disturbance Mitigation

Status

A 10-day final ballot for TPL-007-2 - Transmission System Planned Performance for Geomagnetic Disturbance Events concluded at 8 p.m. Eastern, Monday, October 30, 2017. The voting results can be accessed via the links below. The standard will be submitted to the Board of Trustees for adoption and then filed with the appropriate regulatory authorities.

Background:
On September 22, 2016, FERC issued Order No. 830 approving Reliability Standard TPL-007-1 - Transmission System Planned Performance for Geomagnetic Disturbance Events. In the order, FERC directed NERC to develop certain modifications to the Standard, or to develop other new or revised Standards. The revisions include:

· Modify the benchmark GMD event definition used for GMD Vulnerability Assessments;

· Make related modifications to requirements pertaining to transformer thermal impact assessments;

· Require collection of GMD-related data. NERC is directed to make data available; and

· Require deadlines for Corrective Action Plans (CAPs) and GMD mitigating actions.

FERC established a deadline of 18 months from the effective date of Order No. 830 for completing the revisions, which is May 2018.

Standard Affected: TPL-007-1 - Transmission System Planned Performance for Geomagnetic Disturbance Events

Purpose/Industry Need:

Project 2013-03 will develop reliability standards to mitigate the risk of instability, uncontrolled separation, and Cascading as a result of geomagnetic disturbances (GMDs) through application of Operating Procedures and strategies that address potential impacts identified in a registered entity's assessment as directed in FERC Order 779 and FERC Order No. 830.

While the impacts of space weather are complex and depend on numerous factors, space weather has demonstrated the potential to effect the reliable operation of the Bulk-Power System. During a GMD event, geomagnetically-induced current (GIC) flow in transformers may cause half-cycle saturation, which can increase absorption of Reactive Power, generate harmonic currents, and cause transformer hot spot heating. Increased transformer Reactive Power absorption and harmonic currents associated with GMD events can also cause protection system Misoperation and loss of Reactive Power sources, the combination of which can lead to voltage collapse.

Draft	Action	Dates	Results	Consideration of Comments
The Standards Committee approved the revised Implementation Plan on January 17, 2018.
Revised Implementation Plan Clean \| Redline to Last Posted
Final Draft TPL-007-2 Clean \| Redline to Last Posted Redline to Last Approved Implementation Plan Clean \| Redline to Last Posted Supporting Materials Supplemental GMD Event White Paper Clean \| Redline to Last Posted Thermal Screening Criterion White Paper Clean \| Redline to Last Posted Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted VRF/VSL Justification Clean \| Redline to Last Posted Consideration of Directives	Final Ballot Info Vote	10/20/17 - 10/30/17	Ballot Results
Draft 1 TPL-007-2 Clean \| Redline to Last Approved Implementation Plan Supporting Materials Supplemental GMD Event White Paper Thermal Screening Criterion White Paper Clean \| Redline Transformer Thermal Impact Assessment White Paper Clean \| Redline Unofficial Comment Form (Word) VRF/VSL Justification Consideration of Directives Draft Reliability Standard Audit Worksheet (RSAW) Clean \| Redline to Last Posted	Initial Ballot and Non-binding Poll Updated Info Info Vote	08/02/17 – 08/11/17	Ballot Results Non-binding Poll Results
	Comment Period Info Submit Comments	06/28/17 – 08/11/17	Comments Received	Consideration of Comments
	Join Ballot Pools	06/28/17 – 07/27/17
	Info Send RSAW feedback to: RSAWfeedback@nerc.net	07/25/17 - 08/25/17
The Standards Committee accepted the Standards Authorization Request on March 16, 2017.
Revised Standard Authorization Request Clean\| Redline		03/17/17
Standard Authorization Request Supporting Materials Unofficial Comment Form (Word)	Informal Comment Period Info Submit Comments	12/16/16 – 01/20/17	Comments Received	Consideration of Comments
Additional Drafting Team Nominations to Address Order No. 830 Directives Supporting Materials Unofficial Nomination Form (Word)	Nomination Period Info	10/20/16 – 11/09/16
Project White Papers Benchmark GMD Event White Paper [unchanged from clean version below] Thermal Screening Criterion White Paper [unchanged from clean version below] Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted
Revisions to Project White Papers Benchmark GMD Event White Paper Clean \| Redline to Last Posted Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted Thermal Screening Criterion White Paper Clean \| Redline to Last Posted Supporting Materials Unofficial Comment Form (Word)	Comment Period Info Submit Comments	05/12/16 - 06/13/16	Comments Received	Consideration of Comments
Level 2 Appeal of Foundation for Resilient Societies, Inc. Transcript Panel Decision
Level 2 Appeal of Foundation for Resilient Societies, Inc. Appeal Package Notice of Level 2 Appeals Panel Meeting Comments Received		05/18/15 - 06/08/15
Final Draft TPL-007-1 Clean \| Redline to Last Posted Implementation Plan Clean \| Redline to Last Posted Supporting Materials Benchmark GMD Event White Paper Clean \| Redline to Last Posted Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted Thermal Screening Criterion White Paper Clean \| Redline to Last Posted VRF/VSL Justification Clean \|Redline to Last Posted Consideration of Directives	Final Ballot Info>> Vote>>	12/05/14 – 12/16/14 (closed)	Summary>> Ballot Results>>
	The final ballot close date was extended one day to December 16, 2014 due to a NERC.com maintenance outage on Saturday, December 13, 2014.		Summary>> Ballot Results>>
Draft 4 Stage 2 Standard TPL-007-1 Clean \| Redline to Last Posted Implementation Plan Clean \| Redline to Last Posted Supporting Materials Unofficial Comment Form (Word) Benchmark GMD Event White Paper Clean \| Redline to Last Posted Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted Thermal Screening Criterion White Paper (Complete Revision) VRF/VSL Justification Consideration of Directives Draft RSAW Clean \| Redline	Additional Ballot and Non-Binding Poll Info>> Vote>>	11/12/14 - 11/21/14 (closed)	Summary>> Ballot Results>> Non-Binding Poll Results>>	Consideration of Comments>>
	Comment Period Info>>	10/28/14 - 11/21/14 (closed)	Comments Received>>
	Please send RSAW feedback to: RSAWfeedback@nerc.net	11/05/14 - 11/21/14 (closed)
Notice of Request to Waive the Standard Process
Draft 3 Stage 2 Standard TPL-007-1 Clean \| Redline to Last Posted Implementation Plan Clean \| Redline to Last Posted Supporting Materials Unofficial Comment Form (Word) Benchmark GMD Event White Paper Clean \| Redline to Last Posted Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted Thermal Screening Criterion White Paper VRF/VSL Justification Draft RSAW Clean \| Redline	Additional Ballot and Non-Binding Poll Updated Info>> Info>> Vote>>	10/01/14 - 10/10/14 (closed)	Summary>> Ballot Results>> Non-Binding Poll Results>>
	Comment Period Info>>	08/27/14 - 10/10/14 (closed)	Comments Received>>	Consideration of Comments>>
	Please send RSAW feedback to: RSAWfeedback@nerc.net	09/11/14 - 10/10/14
Draft 2 Stage 2 Standard TPL-007-1 Clean \| Redline to Last Posted Implementation Plan Clean \| Redline to Last Posted Supporting Materials Unofficial Comment Form (Word) Benchmark GMD Event White Paper Clean \| Redline to Last Posted (Updated 6/19/2014 to correct figure I-2) Transformer Thermal Impact Assessment White Paper Clean \| Redline to Last Posted Thermal Screening Criterion white paper Common Questions and Responses Draft Reliability Standard Audit Worksheet (RSAW)	Ballot and Non-Binding Poll Updated Info>> Info>> Vote>>	07/21/14 – 07/30/14 (closed)	Summary>> Ballot Results>> Non-Binding Poll Results>>
	Comment Period Info>>	06/13/14 - 07/30/14 (closed)	Comments Received>> Additional Comments Received>>	Consideration of Comments>>
	Join Ballot Pool>>	6/13/14 – 07/14/14 (closed)
Draft 1 Stage 2 Standard TPL-007-1 Implementation Plan Supporting Materials Unofficial Comment Form (Word) Benchmark GMD Event White Paper Transformer Thermal Impact Assessment White Paper	Comment Period Info>>	04/22/14 - 05/21/14 (closed)	Comments Received>>
Draft 3 Stage 1 Standard EOP-010-1 Clean \| Redline to last posting Implementation Plan Clean \| Redline to last posting Supporting Materials: Standard Authorization Request White Paper Supporting Network Applicability of EOP-010-1 Clean \|Redline to last posting White Paper Supporting Functioning Entity Applicability of EOP-010-1 Clean \|Redline to last posting GMD Task Force Operating Procedures Waiver Authorized by SC but not Exercised Violation Risk Factor and Violation Severity Level Justifications Stage 1 Directives Map	Final Ballot Info>> Vote>>	10/25/13 - 11/04/13 (closed)	Summary>> Ballot Results>>
Draft 2 Stage 1 Standard EOP-010-1 Clean \| Redline to last posting Implementation Plan Clean \| Redline to last posting Supporting Materials: Unofficial Comment Form (Word) Standard Authorization Request White Paper Supporting Network Applicability of EOP-010-1 White Paper Supporting Functional Entity Applicability of EOP-010-1 GMD Task Force Operating Procedures	Comment Period Info>>	09/04/13 - 10/21/13 (closed)	Summary>> Ballot Results>> Non-binding Poll Results>> Comments Received>>	Consideration of Comments>>
	Additional Ballot and Non-Binding Poll Updated Info>> Info>> Vote>>	10/09/13 - 10/21/13 Extended an additional day to achieve quorum. (closed)		Consideration of Comments>>
Draft Stage 1 Standard EOP-010-1 Implementation Plan Standard Authorization Request Supporting Materials: Unoffical Comment Form (Word) GMD Task Force Operating Procedures	Comment Period	06/27/13 - 08/13/13 (closed)	Summary>> Ballot Results>> Non-binding Poll Results>> Comments Received>>	Consideration of Comments>>
	Ballot and Non-binding Poll Vote>>	08/02/13 - 08/13/13 (closed)
	Join Ballot Pool>>	06/27/13 - 07/26/13 (closed)

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