Waterwheels

Last term we were looking at eco homes and being enviromentaly freidnly. We each had to make an Eco Home that had features that would help save energy, water ect. Mine had a mini stream in it that had a water wheel to create electricity, eco lights, wool carpets, solar pannels good insulation and of course a Mini wind turbine in the back yard. I think that if each house hold in NZ adds afew of these things to their houses it will make a big differenc, Dont you?