  The design of a HTS SMES coil with solenoidal and toroidal geometry is
carried out based on a commercially available 2G HTS conductor. A SMES system
of practical interest (1 MW / 5 s) is considered. The comparison between ideal
toroidal and solenoidal geometry is first discussed and the criteria used for
choosing the geometrical parameters of the coils' bore are explained. The
design of the real coil is then carried out and the final amount of conductor
needed is compared. A preliminary comparison of the two coils in terms of AC
loss during one charge discharge cycle is also discussed.
