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Since we are all wired and connected, this would wreak havoc to our overall communication systems and power grids. Solar storms cycle from Max to Min intensities every 11 years - the last "big" one recorded in 1859 -> burning down telegraph lines and transformers. Imagine what would happen today ('shudder'). I also understand that solar flares and the impending energy clouds take a few hours to reach earth's atmosphere. Couldn't we just 'turn' things off/down within that time window to prevent electrical overloads? I guess the problem is detected/predicting them early enough - just like hurricanes and tornadoes...