WHY NOT TAP IN TO FREE ENERGY? Everything that moves is a potential energy source.(eg.Windmills,waterwheels)How about hooking up all the treadmills,exercise bikes etc. in gyms? I believe a combination of that,wind,solar and Hydro would substantially decrease our carbon footprint and increase available energy,thus lowering cost to consumers.As a plus,jobs would be created for technicians to hook up such sources.