Sounds like the typical pseudo-scientific malarkey that has been surrounding cold fusion for some time. After my own little quick survey, here is a reputable retort to the theory:
http://physics.stackexchange.com/questions/43138/widom-larsen-theory
I am not an expert in nuclear physics. But clearly, the “mainstream” does not accept this. However, being trained both as a condensed matter physicist and chemist, I appreciate the appeal cold fusion, a.k.a. these days “LENR”, has for some otherwise level-headed scientist. But alas it is not energetically viable under currently accepted theories. If some mechanism exists for something like LENR, then it will have to be discovered and proven by experimental evidence, because that would represent probably the greatest breakthrough in physics since the Michelson-Morley experiment, which disproved ether and foreshadowed the quantum and Einstein relativity revolution. That is, it is a paradigm shifting crisis in conventional thinking, ala Kuhnian revolution.
And so I sound like a skeptic, which IMHO is a good scientist. Show me the evidence! However, I would not want to discourage the tinkerers and dreamers to continue their efforts to flail at convention. Ultimately that is what is required to usurp those of us who are conservative in our views ;)