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This one has knocked out power. Its cable hit some power lines. https://twitter.com/iduncan/status/659451147955150848 https://twitter.com/iduncan/status/659451

• ChuckMcM 11y ago
  it was mentioned in the article as well. My thinking was this; these aerostats have been proposed as part of the southern border program, the powerlines between Hoover Dam and LA typically are carrying 1,100 MW of power. Shorting them out is one of the events which can bring down the western US grid (so a pretty big deal). The distance between the Arizona/Mexico border to Lake Mead is further of course (230 miles, Mexicali => Las Vegas, 80 miles from Aberdeen to Cook County). So probably not a huge threat directly but one of those wierd things I think about.