Well if people are going to worry about solar flares, they might as well figure on EMP (electromagnetic pulse) protection from high altitude nukes too. Energy

Well if people are going to worry about solar flares, they might as well figure on EMP (electromagnetic pulse) protection from high altitude nukes too. Energy levels can be very high, and the very short pulse risetime results in energy extending to at least the VHF range. That means relatively short conductors can function as efficient antennas, picking up considerable energy. Solar events are lower frequency, so energy from longer conductors such as power lines is the first thing to worry about there. It is silly for those people to be worried about WiFi, but some just don't have a clue as to the differences between ionizing radiation and electromagnetic radiation (and the importance of power levels). But the same folks will gab with a cell phone against their heads...