If you insist on a cited post, lead by example.
Secondly, I gave my opinion which I think is based on accepted facts, if you insist on citations you can find them on Wikipedia. You just gave a statement, wrote your proposition on that statement, with nothing to back it up.
But that's sidetracking, instead of ridiculous citation wars, what I was really asking for was some examples of:
'Renewables can be vastly improved, several advances have already been made just not fully capitalized on'