I can’t embed these videos because for some reason Reuters would rather you watch them on YouTube… I don’t understand that.
In any case, here are a couple of videos about interesting solar concepts and technologies.
http://www.youtube.com/watch?v=RYfnvuADYSs
http://www.youtube.com/watch?v=53fkjppuX00&feature=relmfu (Talking about NYCSolarMap.com)