Are rotoverters really viable?

[e2matrix]

despite their great para-philology by Perez and his likes, not a single rotoverter has been reported as plain OU ready fro work.

That depends on who you are listening to.   I've got documents that say tests have been made to show several times OU.  EVGRAY group on Yahoo groups is where you'll find the most info on them.   Doug Konzen  aka konehead and silvertheau are genius in this field.   
As far as statements made here about no proof of OU there are lots of people who have made things which are 'free energy'.   Claiming OU gets into semantics on energy and all most people want is something to generate power without consuming fuel or energy that you pay for.   Solar cells are free energy when the sun shines.   But most things built that are free energy get quickly supressed, bought out or driven into obscurity by many different means.   And some people are smart enough to build their own free energy device and then shut up.   What is really being said here is no one has built a free energy device that has been shown with detailed easy to build plans and list of materials that anyone can put together or go down to Walmart and buy such a device.   
        Considering mainstream news is now saying 'green scientists' have done a 180 on nuclear power and are advocating building more Nuclear plants I believe it is time we 'get it done' and push the known working or good ideas forward.  And anyone having solutions come out of hiding and put your knowledge out there.   Do so anonymously to protect yourself.