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Statement on Possible Geomagnetic Disturbance Activity
ATLANTA – The U.S. Space Weather Predictive Center has forecasted the possibility of moderate-to-strong geomagnetic activity for Friday and Saturday due to a coronal mass ejection observed on Tuesday. The North American Electric Reliability Corporation continues its normal pattern of continuous monitoring and information sharing, especially in regard to the current solar storm. Utilities continue to monitor their transmission and distribution facilities, as usual, for any abnormal energy flows and are prepared to take appropriate actions to maintain reliability.
 
NERC also is working diligently to inform stakeholders through education, awareness and various tools, including standards. NERC and industry developed a first-stage standard (EOP-010-1 – Geomagnetic Operations), which was approved by the Federal Energy Regulatory Commission on June 19, 2014. The standard requires entities to have geomagnetic operating procedures in place and becomes effective April 1, 2015.
 
A second stage of standard development is currently underway.  TPL-007-1 (Transmission System Planned Performance for Geomagnetic Disturbance Events) would require planning entities to assess the risk of voltage collapse from a 1-in-100 year benchmark geomagnetic disturbance event and mitigate against identified impacts. Additionally, the proposed standard would require transmission owners and generator owners to assess transformer heating caused by geomagnetic disturbances. The proposed TPL-00701 standard must be filed with FERC by January 21, 2015.
 
EOP-010-1 and TPL-007-1 complement one another and together fulfill the directives in FERC’s Order
No. 779.
 
NERC takes its responsibility as the electric reliability organization seriously and continues to take the steps necessary to ensure the reliability and resiliency of the North American bulk power system.
 
 
Posted On: 09/11/2014

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