Yes, it is definitely more interesting than the OP's project :-) but also not in any form of production yet.
I believe it was the presentation Dr. Nocera did for the DoE was a pretty good treatise on the assertion 'if you can't do it as well as plants you are doing it wrong.' :-)
http://www.youtube.com/watch?v=KTtmU2lD97o And 'his' company: http://www.suncatalytix.com/about.html