HTS generators are expected to be about half (1/2) the size and weight of a conventional machine. These generators have a low synchronous reactance that results in operation at very small load angles.

Operation at a small load angle provides greater stiffness during transient and hunting oscillations. HTS generators have 1/2 to 2/3 the losses of a conventional generator and retain high efficiency down to 5% of the rated load.  The cryogenic cooling system power consumption is less than a few percent of the total losses in the machine.