The 660 Gallon Brewery Fuel Cell 238
An anonymous reader writes "Australia's University of Queensland has secured a $115,000 grant for a 660-gallon fuel cell that should produce 2 kilowatts of power. A prototype has been operating at the university laboratory for three months. This fuel cell type is essentially a battery in which bacteria consume water-soluble brewing waste such as sugar, starch and alcohol, plus in this instance produces clean water."