Sometimes someone does something pretty amazing that you gotta just tell the world!  http://bloomenergy.com/ is a new-ish company that have taken technology that produces oxygen for NASA flights (so they ‘naughts can breathe more than a couple of hours in space) and reversed it.  This takes oxygen, plus another fuel source – which can be a green bio-fuel – and produces electricity!!

Read the site as it will explain it better than me, but hey if Google and eBay can use it, why can’t I?