I'm sure many will say it's too good to be true. I myself am not 100% convinced that it's real. But it is looking more and more like it might be.
Google 'rossi ecat' if you don't know what I'm talking about.
Here's the Wiki page for it: http://en.wikipedia.org/wiki/Energy_Catalyzer
Basically he claims to have made cold fusion practical. It's being called Low Energy Nuclear Reaction now.
A couple of months ago the first LENR power plant was (allegedly) installed, in Greece, producing 1MW. At this point he has more orders than he can fill for more such power plants (again allegedly). He has patent protection but only in Italy (his home country), the international patent process is taking a lot of time, but once complete he says he'll reveal the secret catalyst that enables the reaction to occur.
Naturally there are many nay-sayers. And I can't be sure that claims of paying customers are for real. Time will tell, but he is definitely moving toward being able to sell home-sized units quickly:
I could go on but there's no shortage of talk about this apparent breakthrough online. Just thought I'd start a thread here since I couldn't find an existing one.