Not cold fusion, looks like a "low energy nuclear reaction" device...a concept that many have claimed, no one has proven, and no one even has a physics explanation for. Personally, given the energies involved in the small scale devices, experimental error makes a big difference, and until someone can explain why it works, I don't believe it. Perhaps there is a phenomenon we can't explain that is being exploited...(like fire, before a few hundred years ago), but it seems more likely that there is an error we don't understand yet.
I would love to be proven wrong, but any energy generation that only works in small scale, is apparently thousands of times more powerful than chemical processes, but thousands less than nuclear, and relies on unexplained physics arouses my skepticism.
Google LENR for more "information". Take with grain of salt.
Also, occams razor. If these phenomenon (starting with the Utah "cold fusion" debacle) were as capable as people claim...you'd think in 20+ years....someone would have made money off it? I mean, it's not like there is VAST amounts of money in producing energy....oh wait...there is.