ISO-NE is on its way to complying with NERC’s revised geomagnetic disturbance standard, the RTO told the NEPOOL Reliability Committee.

FERC approved NERC’s revised GMD reliability standard, which broadens requires grid operators to collect certain data and imposes deadlines for corrective actions.

FERC proposed to approve a revised reliability standard on geomagnetic disturbances but directed NERC to also require mitigation of vulnerabilities to localized events.