A system for storing electrical energy in a battery of a vehicle, the system comprising:
- at least one upper fluid tube containing a fluid configured to expand in response to receiving thermal energy or solar radiant energy, at least a portion of the at least one upper fluid tube positioned proximal to at least one of a roof, a top surface of a trunk, or a hood of the vehicle;
- at least one lower fluid tube containing the fluid and fluidly coupled with the at least one upper fluid tube, at least a portion of the at least one lower fluid tube positioned proximal to an underbody panel of the vehicle;
- at least one lower valve or pump for controlling a flow of the fluid in the at least one lower fluid tube;
- at least one upper-lower valve or pump for controlling a flow of the fluid between the at least one upper fluid tube and the at least one lower fluid tube;
- at least one fluid turbine coupled with the at least one upper fluid tube or the at least one lower fluid tube, and having blades configured to be rotated by the fluid;
- a generator coupled with the at least one fluid turbine for converting kinetic energy from the rotation of the blades of the at least one fluid turbine to electrical energy stored in the battery;
- and
- an electronic control unit configured to control, using the at least one lower fluid valve or pump and the at least one upper-lower valve or pump, the flow of the fluid in the at least one lower fluid tube and the flow of the fluid from the at least one upper fluid tube to the at least one lower fluid tube and from the at least one lower fluid tube to the at least one upper fluid tube to enhance generation of electrical energy stored in the battery.