What about the inefficiency?
It does seem a bit dim to me. Wireless power transfer is a up-coming thing in (for example) contactless payment systems (Near Field Communications). However these systems need only to transfer milliwatts of power. Inefficiencies are not too important. Up-scaling this to transfer KW will involve very high power AC magnetic fields. These are not only hazardous to those with pacemakers! There will be also be large leakage fields.
Furthermore, a connector is essentially 100% efficient. In an age when energy efficiency will be so critically important. Given the very big energy needed for heavy road transport fleets anyway, the loss of only a few percent would be irresponsible and damaging. The energy efficiency of these systems will be far from ideal, especially given the inherent variabilities in what needs to be a very carefully tuned system. Who pays for the powerlosses, and do they have the "right" or moral authority to throw away energy in this way?
