I just came across this the other day. More from an investor standpoint.
If many of you don't know, silver, apart from being a monetary metal, is the Earth's greatest conductor of heat and electricity. It plays a pivotal role in this technology.
I won't claim to understand how this works at all, i am bringing this to your attention for everyone to have a look for themselves.
http://brilliantlightpower.com/suncell/
From a quick look this appears to be something positive for the future, compared to our current dependence on oil.