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Space Weather: How to Avoid Grid Disruption and Transformer Damage from Solar Flares

Picture this: a spot erupts on the sun’s surface and creates a geomagnetic storm heading straight for Earth. Global positioning systems are disabled, communication technologies are interfered with and large portions of the grid are down, leaving us in the dark. While this may sound like a sci-fi movie, it’s actually a real scenario —and one that comes with a new standard (NERC TPL-007-1) and guidelines for protecting the grid. Solar storms can induce currents in long conductors, such as…