An energy storage includes a first container including an inner space, a plurality of pressure vessels for compressed air that are stacked in rows inside the inner space of the first container, a tank containing a heat transfer fluid arranged inside the inner space of the first container, a compressor adapted to compress air, and a plurality of pneumatic ducts for compressed air connected to the compressor. The plurality of pneumatic ducts includes a plurality of heat exchangers adapted to enable a heat exchange between compressed air contained in the plurality of pneumatic ducts and heat transfer fluid contained inside the tank. The plurality of pneumatic ducts is connected to the plurality of pressure vessels supplying pressure vessels with compressed air, an electric turbine connected by the plurality of pneumatic ducts with the plurality of pressure vessels supplying compressed air for rotating the electric turbine to generate electric current.

A method for determining a level of solar radiation at a point of interest (POI). Multiple sky images are captured by a distributed network of digital cameras. Sun location parameters are determined. A three-dimensional (3D) sky model is generated based on the sky images. Generating the 3D sky model includes generating 3D object data based on the sky images to model one or more objects in a region of sky, and generating position data to model a position of the one or more objects in the region of sky. A level of solar radiation at the POI is determined based on the position data and 3D object data of the 3D sky model and the sun location parameters.

A method for determining a level of solar radiation at a point of interest (POI). Multiple sky images are captured by a distributed network of digital cameras. Sun location parameters are determined. A three-dimensional (3D) sky model is generated based on the sky images. Generating the 3D sky model includes generating 3D object data based on the sky images to model one or more objects in a region of sky, and generating position data to model a position of the one or more objects in the region of sky. A level of solar radiation at the POI is determined based on the position data and 3D object data of the 3D sky model and the sun location parameters.

A width-adjustable packaging bag shaper, a bag maker, a packaging machine, and a method. The packaging machine including the bag maker, a traction device and a heat sealing device are respectively arranged above the bag maker, and a width adjustment device adjusts the distances between different sub bottom plates in a front bottom plate and a rear bottom plate by using a leadscrew and slide block mechanism, and then adjusts the width of a bottom plate. The leadscrew and slide block mechanism is used as the width adjustment device of the automatic width-adjustable noodle packaging bag shaper system, and four bottom plates are respectively fixed to the width adjustment device, so the leadscrew and slide block mechanism in operation is accurate in range of adjustment, is suitable for various widths of packaging bags, and has very important significance for the three-dimensional shaping effect of the packaging bags.

A vehicle power supply control system includes a solar panel, a drive battery, an auxiliary battery, an auxiliary system that is powered by the solar panel and the auxiliary battery, an acquisition unit, and a controller. The acquisition unit is configured to acquire power generated by the solar panel and power consumption of the auxiliary system. The controller is configured to control power supply from the solar panel to the drive battery based on the power generated by the solar panel and the power consumption of the auxiliary system when the power supply from the solar panel to the drive battery is possible.

A vehicle power supply control system includes a solar panel, a drive battery, an auxiliary battery, an auxiliary system that is powered by the solar panel and the auxiliary battery, an acquisition unit, and a controller. The acquisition unit is configured to acquire power generated by the solar panel and power consumption of the auxiliary system. The controller is configured to control power supply from the solar panel to the drive battery based on the power generated by the solar panel and the power consumption of the auxiliary system when the power supply from the solar panel to the drive battery is possible.

Disclosed is a power wiring device which comprises: at least one elongated wiring member which includes a plurality of first connectors and allows the first connectors to be mutually electrically conducted; and a plurality of circuit modules each including a second connector which is mechanically and electrically attachable to and detachable from any of the first connectors, wherein the plurality of circuit modules include: at least one energy harvesting module as a circuit module capable of outputting power generated by energy harvesting from the second connector; and at least one load module as a circuit module capable of consuming power input from the second connector.

An electric vehicle charging system capable of generating electricity by solar energy comprises a fixed solar panel (1) fixed on a roof, a movable solar panel (2), a solar panel state control device (3) and an intelligent voltage conversion and control module (4). The solar panel state control device is connected to the intelligent voltage conversion and control module, and controls stretched and contracted states of the movable solar panel, output voltages of the solar panel fixed on the roof and the movable solar panel are connected in parallel, and then are connected to the intelligent voltage conversion and control module, and the intelligent voltage conversion and control module controls the solar panel to generate a maximum conversion rate and a maximum charging power under different light intensities in different time periods, realizes docking with the electric vehicle, and controls charging.

An electric vehicle charging system capable of generating electricity by solar energy comprises a fixed solar panel (1) fixed on a roof, a movable solar panel (2), a solar panel state control device (3) and an intelligent voltage conversion and control module (4). The solar panel state control device is connected to the intelligent voltage conversion and control module, and controls stretched and contracted states of the movable solar panel, output voltages of the solar panel fixed on the roof and the movable solar panel are connected in parallel, and then are connected to the intelligent voltage conversion and control module, and the intelligent voltage conversion and control module controls the solar panel to generate a maximum conversion rate and a maximum charging power under different light intensities in different time periods, realizes docking with the electric vehicle, and controls charging.

Provided is a photovoltaic system wherein potential induced degradation (PID) is simply and efficiently suppressed. This photovoltaic system is provided with a bypass electric path that connects an inverter and a positive electrode of a solar cell module array to each other by being connected in parallel to a first electric path between the inverter and the solar battery module array. The bypass electric path is provided with a second switching circuit, and a first switching circuit is provided to an electric path between the inverter and a negative electrode of the solar cell module array, the electric path being a part of the first electric path.