"An 'artificial leaf' could one day power the world with clean energy"
http://mashable.com/2015/08/20/solar-fu ... TzD7wrVaql
A solar-powered device developed by researchers at Monash University in Melbourne is replicating what plants and bacteria do with photosynthesis. Although it doesn't resemble a leaf exactly, it should be almost as environmentally friendly.
In a process called electrochemical water splitting, the scientists use commercial solar cells to generate hydrogen and oxygen by passing an electrical current through water. The process creates a hydrogen fuel, which is a much cleaner, sustainable form of energy than those that involve carbon because it creates no carbon dioxide.
With their machine, the researchers have recently set a new energy efficiency world record for solar fuels. The machine can produce hydrogen fuel using an artificial version of photosynthesis at more than 22% energy efficiency, surpassing the previous record of 18%. In most plants, the energy efficiency level is typically between 1% and 2%, he said.
Got those folks at Harvard beat (mentioned earlier in this thread w/a system that runs "only" about 10% efficient).
ES changed my life (for the waaaaay better).
Eff. June, 2014 Phoenix Ebike Promotions
(Current ride? High speed lawn chair.)
Phoenix Ebike Promotions conversion kit (work in progress. More drink holders, etc etc)
Joined yer local chapter of EA yet?
(Ebikers Anonymous - Where we're all miserable failures, but the parties are hilarious...)