Systems, devices, and methods including: at least one unmanned aerial vehicle (UAV); at least one battery pack comprising at least one battery; and at least one motor of the at least one UAV, where the at least one battery is configured to transfer energy to the at least one motor; where power from the at least one motor is configured to ascend the at least one UAV to a second altitude when the at least one battery is at or near capacity, and where the second altitude is higher than the first altitude; and where power from the at least one motor is configured to descend the at least one UAV to the first altitude after the Sun has set to conserve energy stored in the at least one battery.

The present disclosure relates to a vehicle body part of a motor vehicle having at least one frame component and at least one trim part which is arranged thereon, wherein the trim part has at least one cutout which is closed off in an essentially airtight and watertight fashion and has at least one solar cell which is arranged therein and has the purpose of generating electrical energy, and wherein the outer side of the trim part has, at least in a region adjacent to the at least one solar cell, an outer shape which is curved three-dimensionally and which is provided for forming a part of the external contour of the motor vehicle in the installed position on said motor vehicle. Furthermore, the present disclosure relates to a method for producing a vehicle body part.

The present disclosure relates to a vehicle body part of a motor vehicle having at least one frame component and at least one trim part which is arranged thereon, wherein the trim part has at least one cutout which is closed off in an essentially airtight and watertight fashion and has at least one solar cell which is arranged therein and has the purpose of generating electrical energy, and wherein the outer side of the trim part has, at least in a region adjacent to the at least one solar cell, an outer shape which is curved three-dimensionally and which is provided for forming a part of the external contour of the motor vehicle in the installed position on said motor vehicle. Furthermore, the present disclosure relates to a method for producing a vehicle body part.

A charge capacity variable control apparatus using an external energy source for a vehicle, may include an external energy source for generating an external charge power, a main battery for receiving the external charge power to be charged, and a controller for generating a change target charge capacity by changing an existing target charge capacity based on an external charge capacity of the external energy source and a battery charge capacity of the main battery depending upon the driving state of the vehicle, and performing a variable control using the change target charge capacity.

The present disclosure provides a house expander for a camping car, in which residential activities are made in the activity space created by the variable member provided in the cargo box and a variable device when the camping car is used for camping or residence and the camping car travels as a wing body tower vehicle as the variable member is received in a variable member arranging space of the cargo box.

A removable roof for an off-road vehicle includes a sheet of polycarbonate and one or more solar energy collection elements attached to the sheet of polycarbonate. Electrical connections adapted to allow energy collected by the solar energy collection elements to flow to an electrical power output are also provided. The solar energy collection elements may be attached to the top and/or bottom surface of the sheet of polycarbonate, or they may be encapsulated in the sheet of polycarbonate. The roof may be removably attachable to the cage of an off-road vehicle using fasteners that may be installed or removed using only common hand tools.

A building panel has a deep drawn transparent film having an inner face and a structure having solar cells on the inner face of the deep-drawn film. The structure has an inner face turned away from the film and an outer face on or closely juxtaposed with the inner face of the film. A reinforcement layer constituted as a mass of foamed granular particles is spread over the inner face of the structure in direct contact with the inner face of the structure without the interposition of an adhesive and is heat cured to the film.

A building panel has a deep drawn transparent film having an inner face and a structure having solar cells on the inner face of the deep-drawn film. The structure has an inner face turned away from the film and an outer face on or closely juxtaposed with the inner face of the film. A reinforcement layer constituted as a mass of foamed granular particles is spread over the inner face of the structure in direct contact with the inner face of the structure without the interposition of an adhesive and is heat cured to the film.

An electricity generator includes a wind tunnel positioned on the vehicle. The wind tunnel has an open first end and an open second end. The open first end is in communication with ambient air. A turbine chamber is fluidly coupled to the open second end of the wind tunnel. At least one wind turbine is positioned in the turbine chamber. The at least one wind turbine includes a housing. A rotor is positioned in the housing along an axis that is substantially perpendicular to an axis of the wind tunnel.

An electricity generator includes a wind tunnel positioned on the vehicle. The wind tunnel has an open first end and an open second end. The open first end is in communication with ambient air. A turbine chamber is fluidly coupled to the open second end of the wind tunnel. At least one wind turbine is positioned in the turbine chamber. The at least one wind turbine includes a housing. A rotor is positioned in the housing along an axis that is substantially perpendicular to an axis of the wind tunnel.