Transmission Line GIC In testing
Know which lines a storm pushes hardest.
Pxie estimates the geomagnetically induced current (GIC) along each transmission line, so you can rank transmission line GIC exposure across your network.
Plan: Builder plan.
Coverage: Modeled anywhere on Earth; most detailed in Alberta and the rest of North America.
What Transmission Line GIC gives you.
Induced voltage per line
From a line's two ends and voltage class, Pxie estimates the voltage a storm induces along it, using the storm's electric field at both ends and the midpoint.
Stray current estimates
An estimate of the current driven into the transformers at each end, using typical resistances or your real values for a line-specific number.
Whole networks, solved together
Up to 20 lines in one call, or your registered network, so currents meeting at shared substations combine correctly.
Related
Longest east–west line most exposed
Induced voltage rising with the storm
"How exposed is our 500 kV line to tonight's storm?"
Pxie answers with the get_line_exposure tool. Space weather MCP server →
Transmission Line GIC questions.
What is transmission line GIC?
The quasi-direct current a geomagnetic storm drives through long transmission lines and into transformers.
Can I use my own line data?
Yes. Supply real line and station resistances to replace typical values.
Does it handle series capacitors?
Yes. Lines with series compensation block the current, and the estimate reflects that.
Rank your lines by storm exposure.
Start free, or tell us what you are building.
Developers: Transmission Line GIC docs →