It doesn't generate anything....it's a battery. Where does your generation come from? Battery is not generator....it uses chemical reactions to transfer electrons. This is not permanent and when the fuel is spent (not water.....it's the iron and copper) it stops working. It will also continue to lose voltage and amperage as it loses strength.....please explain where the generation come in.......the motor portion is also using the energy from the battery and when the battery empties it will also stop working as well as the bulb because it uses the coil to pulse the motor which requires the battery