North American Electric Reliability Corporation

TPL-007-4

Transmission System Planned Performance for Geomagnetic Disturbance Events

Latest Edition2020-10-01

Country ScopeNorth America

CategoryReliability Standards / Transmission Planning

Record Typestandard

ApplicabilityEnforceable after approval or adoption by the applicable regulatory authority

Applicability Summary

NERC reliability standard in the TPL family addressing transmission system planned performance for geomagnetic disturbance events.

Notes

NERC page label: Mandatory Subject to Enforcement. Standard document modified June 21, 2025. Public notes: Filing/Order Docket No. RD20-3-000 This Variance shall be applicable in those Canadian jurisdictions where the Variance has been approved for use by the applicable governmental authority or has otherwise become effective in the jurisdiction..