Comment Re:Nice! (Score 1) 75
The biggest clincher is that the Earth's electrical grid doesn't even have to be susceptible to be damaged by such storms. The damage is due to high-intensity, slowly-changing magnetic fields that induce what amounts to DC current (when compared to the brisk 50/60Hz). Such low-frequency currents happily saturate the transformer cores and destroy the infrastructure. The solution is rather simple, and would have costed very little to implement: AC coupling of all conductors over a certain length in transmission and distribution circuits. By all conductors I really mean all: the grounded conductors, and mast-to-mast earting wires would need to be AC coupled as well. An alternative would be to add DC-breaking overcurrent protection to all circuits, including grounded and lightning protection circuits.