Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 44, issue 1
Articles | Volume 44, issue 1
https://doi.org/10.5194/angeo-44-245-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-44-245-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 44, issue 1
Regular paper
 | 
08 Apr 2026
Regular paper |  | 08 Apr 2026

Benchmarking the Swedish Power Grid Against a 1-in-100-Year Geoelectric Field Scenario

Vanina Lanabere, Andrew P. Dimmock, Sven Molenkamp Venholen, Alice V. L. Wallner, Andreas Johlander, Lisa Rosenqvist, and Johan Setréus

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Short summary
The goal of this study was to explore how a once-in-a-century geoelectric field event could affect the Swedish power grid by combining past storm data with a simplified model of the power grid. We identified regions that may be at higher risk and estimated how many power lines could be exposed to large voltages. These insights reveal vulnerable areas and provide a foundation for strengthening preparedness against rare, high-impact events.
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