How to make "pico-hydroelectric" power - doesn't require a lot of water and generates enough power for at least one household. I was thinking something like this in-line with your water inlet system since it is already under pressure.
Electric Urban Quad Bike concept for green highways. Based on a normal electric quad wheel) bike chassis. I like the concept but it didn't go nearly far enough for diver to be rain protected. JUDI 's next vehicle?
"The battery powered CarGo’s innovative design allows the operator or driver to quickly adapt the vehicle to suit both traffic conditions and load volume/type. The CarGo has one seat and provides three standard configurations;