Knowledge Base

Earth Resistivity Model for GIC Calculations

Updated February 8, 2022 with versions that do not contain dashes in the region set names

PowerWorld Simulator GIC can automatically incorporate scaling factors for geomagnetic latitude and earth resistivity according to NERC TPL-007-2 – Transmission System Planned Performance for Geomagnetic Disturbance Events (October 2017). The earth resistivity models must be loaded from an auxiliary file.

The following models are available:

The files include scaling factors for both the Benchmark Event and the Supplemental Event.

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January 31, 2018