An electrical floating vehicle powered by renewable energy systems that regulates the temperature of the water it floats on, such as local areas of sea, oceans or lakes. The vehicle is powered by wind sails having wind turbines 1； hydro generators/turbines (77, Fig 6 ) and solar panels 34, 35, 37, 40. The wind turbines and hydro turbines have two axis of rotation, one to allow the turbines to track wind and water direction changes, and another to allow the turbines to be retracted. The energy systems power may power the vehicles propulsion units； be stored in energy storage devices e.g. battery； or used to regulate the water temperature via temperature regulating channels within the vehicle. Water enters the channels due to the movement of the vehicle, or via the use of circulation pumps. The water is either cooled or heated via its interaction with said channels, e.g. heat exchange. The vehicle may have water temperature and velocity measuring devices, sonar and means to control the workings of the vehicle. The vehicle may have water condensation apparatus to produce water.
