Current fusion reactors require more energy put into them to start and maintain the fusion reaction than is harvested from the actual fusion reaction. Better su

Current fusion reactors require more energy put into them to start and maintain the fusion reaction than is harvested from the actual fusion reaction. Better superconductors means it will take much less energy to start and maintain fusion and thus the reactors should produce energy rather than consume it. It doesn't break the laws of thermodynamics since the energy produced is from fusing hydrogen into lower energy state helium, just currently we use more energy than the process produces to make it happen.