I am no scientist but if this gadget does in fact work - even if it only produces a minimal amount of electricity think of the implications on a global scale. Instead of our urine being flushed away towns and cities could hook up all the toilets to a bigger more sophisticated model of this which could provide power. If you take London for example which has a population of around 8,174,100 people and the average person wees around 1.5 litres a day then thats 12,261,150 litres per day. Think of the amount of electricity that would equate too?