I have been thinking of trying a hydroelectric aquaponics garden/farm for a bit now. Begin just like you would an in ground pool but with collums to support grow beds and a walk way on top. On one side have a fish proof grate that drops your water into a water turbine and from the turbine intto a water reservior. When the reservior gets high enough it is pumped back into the pound. Should create enough electricity to run the whole operation