A vehicle air-conditioning apparatus includes: a hot water heater core provided in a hot water circuit in which cooling water circulates in a heat source to recover waste heat of the heat source, and configured to exchange heat between the cooling water heated by the waste heat of the heat source and air to heat the air, thereby heating an inside of a vehicle by using the heated air; a heat pump configured to exchange heat between a refrigerant discharged from a refrigerant compressor and air by using an indoor heat exchanger to heat the air, thereby heating the inside of the vehicle by using the heated air; an electric heater configured to heat air to heat the inside of the vehicle; and a controller configured to select at least one of the hot water heater core, the heat pump and the electric heater to perform a heating operation.

A power control apparatus according to an embodiment includes acquisition circuitry and determination circuitry. The acquisition circuitry is configured to acquire a voltage of a secondary battery during charging. The determination circuitry is configured to determine a maximum current to be used during charging of the secondary battery using a difference between an upper limit voltage and the acquired voltage.

An arrangement for driving a locomotive has various energy-provision systems. The locomotive contains a main energy-provision system as the main system and a drive system. Energy provided by the main system is supplied to the drive system as drive power and is used by the drive system for moving the locomotive. A railroad car carries at least one additional energy-provision system as an auxiliary system. The auxiliary system is used in a manner which is temporally offset from the main system in order to supply drive power to the drive system. Components which can be used by both the main system and the at least one auxiliary system are implemented only once and are used jointly by both the main system and the auxiliary system. Components which are used exclusively by the auxiliary system are arranged on the railroad car.

An arrangement for driving a locomotive has various energy-provision systems. The locomotive contains a main energy-provision system as the main system and a drive system. Energy provided by the main system is supplied to the drive system as drive power and is used by the drive system for moving the locomotive. A railroad car carries at least one additional energy-provision system as an auxiliary system. The auxiliary system is used in a manner which is temporally offset from the main system in order to supply drive power to the drive system. Components which can be used by both the main system and the at least one auxiliary system are implemented only once and are used jointly by both the main system and the auxiliary system. Components which are used exclusively by the auxiliary system are arranged on the railroad car.

An arrangement for driving a locomotive has various energy-provision systems. The locomotive contains a main energy-provision system as the main system and a drive system. Energy provided by the main system is supplied to the drive system as drive power and is used by the drive system for moving the locomotive. A railroad car carries at least one additional energy-provision system as an auxiliary system. The auxiliary system is used in a manner which is temporally offset from the main system in order to supply drive power to the drive system. Components which can be used by both the main system and the at least one auxiliary system are implemented only once and are used jointly by both the main system and the auxiliary system. Components which are used exclusively by the auxiliary system are arranged on the railroad car.

An arrangement for driving a locomotive has various energy-provision systems. The locomotive contains a main energy-provision system as the main system and a drive system. Energy provided by the main system is supplied to the drive system as drive power and is used by the drive system for moving the locomotive. A railroad car carries at least one additional energy-provision system as an auxiliary system. The auxiliary system is used in a manner which is temporally offset from the main system in order to supply drive power to the drive system. Components which can be used by both the main system and the at least one auxiliary system are implemented only once and are used jointly by both the main system and the auxiliary system. Components which are used exclusively by the auxiliary system are arranged on the railroad car.

Implementations of a system and method for high-velocity ground transportation mobile wind power generation are provided. In some implementations, the system comprises a pathway system, a large-scale high-velocity ground transporter, a plurality of on-board turbine-generators, and a plurality of off-board turbine-generators. In some implementations, the method comprises providing the system and generating electricity on-board and off-board the transporter with the system.

A vehicle may include: a genset including: an engine configured to combust light fuel such as natural gas, a generator linked to the engine and configured to convert mechanical energy provided by the engine into electrical energy; one or more light fuel storage containers; one or more electrical storage devices such as batteries; a plurality of wheels; a plurality of electric motors configured to drive the plurality of wheels; a first power bus configured to electrically connect the generator of the genset, the one or more electrical storage devices, and the plurality of electric motors. Each of the one or more electrical storage devices may be disposed lower than each of the one or more light fuel storage containers with respect to a vertically extending reference axis that is perpendicular to a reference plane parallel to ground.

Modifying railcar embodiments convert the dead weight of empty railcars to productive use. Battery embodiments are charged by regenerative brakes, solar panels, and wind turbines. Freight car wheels, have a plurality of regenerative brakes. A plurality of airfoils, with solar panels, are installed on shipping containers, to counteract drag created by a plurality of wind turbines. Railcar embodiments are used in a mix and match fashion, as desired. Storage battery banks, are shipped and/or charged to replace existing hazardous transmission lines. Storage battery banks, are shipped and/or charged to avoid constructing new transmission lines for solar or wind farms. Factory installed EV batteries, EV batteries, and/or other rechargeable batteries, are shipped and/or charged. After battery embodiment charging is complete, power generated is diverted to train engines. Provisions are made for embodiments not connected to train engines. Embodiment operations are monitored with data displays.

Modifying railcar embodiments convert the dead weight of empty railcars to productive use. Battery embodiments are charged by regenerative brakes, solar panels, and wind turbines. Freight car wheels, have a plurality of regenerative brakes. A plurality of airfoils, with solar panels, are installed on shipping containers, to counteract drag created by a plurality of wind turbines. Railcar embodiments are used in a mix and match fashion, as desired. Storage battery banks, are shipped and/or charged to replace existing hazardous transmission lines. Storage battery banks, are shipped and/or charged to avoid constructing new transmission lines for solar or wind farms. Factory installed EV batteries, EV batteries, and/or other rechargeable batteries, are shipped and/or charged. After battery embodiment charging is complete, power generated is diverted to train engines. Provisions are made for embodiments not connected to train engines. Embodiment operations are monitored with data displays.