Today’s LiveWire Spotlight looks at FERC Order 830 approving TPL-007-1, the NERC standard governing the simulation of geomagnetic disturbances (GMD) caused by solar flares. The Commission will allow TPL-007-1 to take effect, but gives NERC and the industry 18 months to tighten the criteria for the benchmark GMD event and the mitigation of vulnerabilities.

TPL-007-1 will begin to take effect in the U.S. on 7/1/2017. By that time, Planning Coordinators and Transmission Planners must have worked out the responsibilities for modeling and conducting GMD Vulnerability Assessments.