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@#1 no reason you can't put a raised collector on the roof of a truck @#2 yeah nice dream. Ever seen a highway under refurbishment? "Deep enough" to survive th

• Retric 3y ago
  #1 is about cars not trucks. You could stick something physically tall enough but you’d run into serious aerodynamic issues. #2 There’s wireless charging systems more efficient when using power directly than plugging in and charging an EV’s batteries. (edit with a 9 inch air gap) That’s quite a bit of wiggle room if the goal is indefinite range rather than actually charging cars on the freeway. So yes there’s definitely a trade off of efficiency vs maintenance, but it’s not that big a gap.
  • etrautmann 3y ago
    This just simply isn’t going to be an efficient, cost effective, or maintainable solution relative to alternatives. We’re also not going to have solar roads for the same reason. Sure take moonshots, but they should make sense from first principles.
    • Retric 3y ago
      People already pay a big premium on electricity rates for high speed charging. At ~98% coil to coil efficiency it’s quite competitive. Semi’s need ~30kW for unlimited distance with multiple drivers and about half that with a single driver and mandatory rest periods. Cars have significantly lower requirements making this a long way from a moon shot.