The 100-Year Geomagnetic Storm and The Electric Grid – Part 1, by Tango Delta
An average of once every one hundred years the sun takes aim at earth and launches a ginormous coronal mass ejection(CME). Less than a day later, it arrives as a cloud of charged particles and hits the earth’s magnetic field. It has a southern polarity and, therefore, “couples” with the earth’s magnetosphere, creating swirling “electrojets” of charged particles 100km above the earth. These produce geomagnetically-induced currents (GIC) in the earth itself. These currents flow into the grounding mechanisms of large Extra High Voltage (EHV) transmission towers. The current then flows through the transmission lines and into the EHV transformers in …