Regarding point three: Rossi is not converting light to electricity. As I understand it, he is harvesting the electric potential differentials - from the different plasma layers of his ballerina plasma ball - into DC electricity.
Now I really wonder where you got this understanding. From Axil? Or other speculation from the other Rocket Scientists on ECW like Buck and Roland? And how exactly does one extract from the layers? Some kind of self positioning anodes and cathodes? And where does Rossi mention this in his paper that explains everything?