MIT's simple ARC reactor for nuclear fusion power plants

Advances in magnet technology have enabled researchers at MIT to propose a new design for a practical compact tokamak fusion reactor. MIT's new reactor is named as the ARC reactor.

Rare-earth barium copper oxide (REBCO) superconducting tapes are the enabling technology behind the ARC reactor. When it is cooled to liquid nitrogen temperature, the superconducting tape can carry as much current as the large copper conductor, enabling the construction of extremely high"field magnets, which consume minimal amounts of power.
https://www.youtube.com/watch?v=O3ECJSEeW_A&list=PLK2ccNIJVPpB_XqWWq_oaZGIDzmKiSkYc

http://www.techtimes.com/articles/76112/20150812/tiny-fusion.htm