Although this is interesting. It solves no problem. The energy loses by such a charging system are very large. You lose power by 1. Having the electric energy on or in the ground. and 2. The large energy loss moving the energy through the air to the receiver. We already know how to this. for passengers, light rail, with overhead wires. And for freight heavy rail with over head wires. My guess this system would be about 50% less efficient.