The main advantage is that a Stellerator can be continuously operated while a Tokamak only works in pulsed operation. The complex design of a Stellerator's mag

The main advantage is that a Stellerator can be continuously operated while a Tokamak only works in pulsed operation. The complex design of a Stellerator's magnectic coils essentially avoid the need for a transformer as it is being used in a Tokamak. The transformer is the reason why a Tokamak can only be operated in pulsed mode. However, there is ongoing research to achieve continuous operations e.g. by means of high-frequency waves. Much better explanation here: https://www.ipp.mpg.de/14869/tokamak https://www.ipp.mpg.de/14869/tokamak