The traditional transformer is trending towards pocketsize and noiselessly in inverter using high-frequency link technique,but the control circuit becomes difficult to be designed.
It's also in the back, and it takes the alternating current that just came from the inverter and creates a rotating magnetic field that causes the motor to turn.
Using High-Voltage Direct-Current cables (HVDC) and converters and inverters at either end to make the power usable, electrical losses over the entire length of the Sun Cable will only add up to around 10%.