WASHINGTON, D.C. – The Federal Energy Regulatory Commission took action on an important item related to reliability at its open meeting today.
FERC issued Order No. 851 approving proposed Reliability Standard TPL-007-2 – Transmission System Planned Performance for Geomagnetic Disturbance Events. The Reliability Standard was developed and submitted by NERC in response to a FERC directive in Order No. 830 to modify currently effective Reliability Standard TPL-007-1. Reliability Standard TPL-007-2 provides enhanced requirements to address reliability risks arising from geomagnetic disturbances (GMDs), including the risks posed by severe, localized events. The standard also establishes deadlines for entities to develop and implement corrective action plans to address identified GMD vulnerabilities and contains requirements intended to expand the collection of GMD data. In the final rule, FERC directed NERC to revise provisions related to corrective action plans. Specifically, FERC directed NERC to revise the standard to: (i) require the development and implementation of corrective action plans for vulnerabilities identified through the supplemental GMD vulnerability assessment; and (ii) include a process for considering, on a case-by-case basis, requests for extending the time to implement corrective actions. NERC is to submit a revised standard within 12 months of the effective date of TPL-007-2. FERC also directed NERC to submit a report discussing the circumstances under which entities extend corrective action plan deadlines and the disposition of any requests.
In the final rule, FERC also accepted the revised GMD research work plan submitted by NERC on April 19, 2018. The revised work plan provides an expansive and detailed framework for conducting research into the GMD-related research areas identified by FERC in Order No. 830. The revised work plan was submitted in response to a FERC order issued on October 19, 2017.
Industry has already made significant progress in reducing vulnerabilities to geomagnetic storms. The TPL-007-2 standard represents another significant milestone in NERC's efforts to harden the grid against severe GMD events. NERC will continue to work toward assuring the reliability of the North American bulk power system.
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