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A wireless charger is cheaper than a power outlet?

• ZeroGravitas 4y ago
  Cheaper than an equivalent EV charger. Safety requires an isolating transformer in the charger, which adds costs and an efficiency loss. The wireless charger is the isolating transformer in their case, leading to surprisingly high efficiency and low costs in comparison.
  • adgjlsfhk1 4y ago
    have you ever looked at a level 2 charger? it's literally just a beefy extension cord.
    • ZeroGravitas 4y ago
      The pitch isn't a 1 for 1 replacement, it's that the Witricity system (which is like a level 2.5) provides via convenience the extra charging that would otherwise require the speed and power of a level 3 charger. You're trading off speed of charge for time fiddling with the system. This trade-off may not work for someone with one car they plug in when they get home and unplug in the morning, just like they don't need a level 3 charger anyway, but might for an airport taxi firm, where they can charge their fleet while boarding passengers, or a loading bay for EV delivery vans. If that demand is enough to make it a standard item on the car side, then it'll likely displace plug in charging in a lot of places where both are possible for silly reasons like "nothing for drivers to crash into", feeling more "luxurious", "cheaper install" and so on.