> ... supplied by people on cycle generators - but they don't tell the family. The > result sounds a bit hilarious (requires 74 cyclists peddling hard to power > the on demand shower unit). Program is apparently being done as a > demonstrator of how wasteful we are with energy. Pedalling hard on an exercise machine makes a cold shower attractive after about 10 minutes. On demand shower can work OKish on say 6 kW and 200 Watts is a bearable pedalling load. so 6000/200 = 'only' 30 cyclists and you'd manage les than that if needs be. 100 Watts is doable for say 1 hour - annoying but bearable. 100 Watt hours would run say 8 hours x 12 Watts = 4 x 2 Watt lights = a very useful amount of light for 4 rooms with good LEDs. Russell. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist