Related Files | Project 2013-03 Geomagnetic Disturbance Mitigation
StatusFinal ballots for TPL-007-3 (Canadian Variance) – Transmission System Planned Performance for Geomagnetic Disturbance Events and the associated Implementation Plan concluded at 8 p.m. Eastern, Monday, December 10, 2018.
Reliability Standard TPL-007-3 adds a Variance for Canadian entities.
The Canadian Variance replaces, in its entirety, Requirement R7, Part 7.3 of
the continent-wide standard for Canadian entities and adds an alternate
methodology for GMD Vulnerability Assessments, as described in Attachment
1-CAN. None of the continent-wide Requirements have been changed.
BackgroundReliability Standard TPL-007-2 – Transmission System Planned Performance for Geomagnetic Disturbance Events was approved by industry in 2017 and filed with the Federal Energy Regulatory Commission on January 22, 2018 and the Canadian authorities on February 27, 2018. The first version of the standard, TPL-007-1, requires entities to assess the impact to their systems from a defined event referred to as the “Benchmark GMD Event." The second version of the standard adds new Requirements R8, R9, and R10 to require responsible entities to assess the potential implications of a “Supplemental GMD Event" on their equipment and systems in accordance with the FERC's directives in Order No. 830. On June 13, 2018, the Standards Committee approved a SAR and appointed a standard drafting team (SDT) to make Canadian-specific revisions to TPL-007-2.
Standard(s) Affected: TPL-007-2 – Transmission System Planned Performance for Geomagnetic Disturbance Events
Purpose/Industry Need The purpose of this project is to enable the option for Canadian Registered Entities to leverage operating experience, observed GMD effects, and on-going research efforts for defining alternative Benchmark GMD Events and/or Supplemental GMD Events that appropriately reflect their specific geographical and geological characteristics. This project also addresses regulatory
frameworks specific to Canadian jurisdictions.
TPL-007-3 (Canadian Variance)Clean | Redline
Errata Change: On January 23, 2019, the
Standards Committee approved clarifying changes regarding the applicability in
TPL-007-3 (Canadian Variance)Clean | Redline to Last Approved
Implementation PlanClean | Redline to Last Posted
Final Ballot Info Vote
11/29/18 – 12/10/18
TPL-007-3 (Canadian Variance)
Clean | Redline to TPL-007-2
Unofficial Comment Form (Word)
11/06/18 - 11/15/18*
The ballots were extended an additional day to reach quorum and closed November 16, 2018
Consideration of Comments
10/02/18 - 11/15/18
Join Ballot Pools
10/02/18 - 10/31/18
Proposed TPL-007-2 Canadian Variance
08/10/18 - 09/06/18
Standards Authorization RequestClean | Redline
Accepted by the Standards Committee
June 13, 2018
Standards Authorization Request
03/30/18 - 04/30/18
SAR Drafting Team Nominations
Unofficial Nomination Form (Word)
03/30/18 - 04/12/18* extended through 04/19/18
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