If the mechanics of transient superconductivity as laid out in this thread - are shown to produce a rapid expansion of previously condensed matter following the collapse of the (transient) magnetic field which was induced by the (transient) spintronics current – THEN – we have defined a most desirable and simplified situation since nuclear fusion itself is not required to show energy gain.
In fact, all appearances indicate that the dynamics would amount to the same identical scenario as the Coulomb explosion (of Miley and many others). There could be incidental fusion but it is not powering the main thermal gain. As to “where” the excess energy comers from – since fusion would not be required – that source can easily be identified as nuclear binding energy (strong force mechanics). Gluons, in a word. Mass is still being converted into energy but without nuclear fusion. … which is a more intuitive model compared to the huge burden necessary to explain away the lack of gamma radiation. Jones