Photovoltaics and an MPPT DC/DC converter powers a DC bus of a controller. It uses an electric heat pump to heat a mass like water, and also has a resistive heating element to heat the mass. A microcontroller controls a variable frequency (VFD) motor drive to power the electric heat pump when sufficient solar power is available to run the heat pump and uses the resistive element to heat the thermal mass when insufficient solar power exists for the heat pump or when excess solar power is available. A controller has an MPPT input for solar power and a VFD to provide power through an output to a heat pump-based water heater and an output to power a resistive water heating element. A microcontroller determines solar power available and runs the heat pump when possible and the resistive element when insufficient power is available or when excess power is available.

A module frame includes a body having an interior surface, a lower flange extending from the interior surface of the body, and a cable management flange extending from the interior surface of the body. The lower flange and the cable management flange each include a distal end. The cable management flange and the lower flange define a cable cavity therebetween for retaining at least one cable. The distal ends of the lower flange and the cable management flange define an opening for inserting the cable into the cable cavity. The cable management flange is arranged to engage the cable and secure the cable in the cable cavity.

An energy-independent water electrolysis fuel cell water cart system is disclosed. The energy-independent water electrolysis fuel cell water cart system presented in the present invention comprises: an awning for acquiring, through a solar panel, solar energy to be used as power necessary for an initial water electrolysis treatment and as reserve power, and blocking sunlight; a water electrolysis unit for performing water electrolysis treatment on supplied water by using the solar energy, and supplying hydrogen gas generated through the water electrolysis treatment to an energy generation unit after the hydrogen gas has undergone refinement and storage using an absorbent; the energy generation unit for generating electrical energy by means of a fuel cell scheme using the supplied hydrogen gas; and an energy storage unit for supplying the generated electrical energy as power for the energy-independent water electrolysis fuel cell water cart system.

A wireless optical power transmission system comprising a transmitter and receiver, the transmitter comprising a laser emitting a beam, a scanning mirror for steering the beam towards said receiver and a control unit receiving signals from a detection unit on the receiver and controlling the beam power and the scanning mirror. The receiver has a photovoltaic cell having a bandgap energy of 0.75-1.2 e V, with a plurality of conductors on abeam receiving surface. A cover layer of material blocking illumination of wavelengths outside that of the laser, is disposed on the photovoltaic cell. The cover layer may have anti-reflective coatings on its top and bottom surfaces. The detection unit thus generates a signal representing the power of the laser beam impinging upon the receiver, independent of illuminations other than that of said laser beam. The control unit thus can maintain the laser power impinging on the receiver.

A wireless optical power transmission system comprising a transmitter and receiver, the transmitter comprising a laser emitting a beam, a scanning mirror for steering the beam towards said receiver and a control unit receiving signals from a detection unit on the receiver and controlling the beam power and the scanning mirror. The receiver has a photovoltaic cell having a bandgap energy of 0.75-1.2 e V, with a plurality of conductors on abeam receiving surface. A cover layer of material blocking illumination of wavelengths outside that of the laser, is disposed on the photovoltaic cell. The cover layer may have anti-reflective coatings on its top and bottom surfaces. The detection unit thus generates a signal representing the power of the laser beam impinging upon the receiver, independent of illuminations other than that of said laser beam. The control unit thus can maintain the laser power impinging on the receiver.

Provided is a self-generating smart glass, including: a window frame, an outer glass and an inner glass, a plurality of solar panels, a first electric telescopic rod, a plurality of slide grooves which are symmetrically arranged on a top and a bottom of the window frame, a foldable plate located between the outer glass and the inner glass, a first battery, a light sensor and a control system. Two adjacent outer surfaces of the foldable plate are provided with the solar panels which are connected in series through flexible wires and communicated with the first battery. The first electric telescopic rod, the light sensor and the control system are respectively connected to the power supply; and the first electric telescopic rod and the light sensor are respectively connected to the control system.

Provided is a self-generating smart glass, including: a window frame, an outer glass and an inner glass, a plurality of solar panels, a first electric telescopic rod, a plurality of slide grooves which are symmetrically arranged on a top and a bottom of the window frame, a foldable plate located between the outer glass and the inner glass, a first battery, a light sensor and a control system. Two adjacent outer surfaces of the foldable plate are provided with the solar panels which are connected in series through flexible wires and communicated with the first battery. The first electric telescopic rod, the light sensor and the control system are respectively connected to the power supply; and the first electric telescopic rod and the light sensor are respectively connected to the control system.

A wiring device of photovoltaic power generation equipment includes an aluminum wire and a copper-aluminum transition element. One end of the aluminum end is connected with the aluminum end of the copper-aluminum transition piece, and the other end of the aluminum end is configured to connect with an external connecting component. The copper end is configured to connect with photovoltaic power generation equipment. In the wiring device of the photovoltaic power generation equipment provided in the present application, the copper-aluminum transition piece is arranged at the position of the photovoltaic power generation equipment, and the aluminum end of the copper-aluminum transition piece is connected to the external connecting component by the aluminum wire, avoiding using copper wire for long-distance conduction. The cost of the aluminum wire is much lower than that of the copper wire. Therefore, the cost of the wiring device provided by the application is reduced.

A wiring device of photovoltaic power generation equipment includes an aluminum wire and a copper-aluminum transition element. One end of the aluminum end is connected with the aluminum end of the copper-aluminum transition piece, and the other end of the aluminum end is configured to connect with an external connecting component. The copper end is configured to connect with photovoltaic power generation equipment. In the wiring device of the photovoltaic power generation equipment provided in the present application, the copper-aluminum transition piece is arranged at the position of the photovoltaic power generation equipment, and the aluminum end of the copper-aluminum transition piece is connected to the external connecting component by the aluminum wire, avoiding using copper wire for long-distance conduction. The cost of the aluminum wire is much lower than that of the copper wire. Therefore, the cost of the wiring device provided by the application is reduced.

A modular support system includes a central core and operation modules arranged radially around the central core. A first operation module is configured to receive water to be treated. A second operation module is disposed under the first operation module and is configured to receive the water and to perform a first type of water treatment. A third operation module is disposed under the second operation module and is configured to receive the water and to perform a second type of water treatment that is different from the first type of water treatment. A fourth operation module is disposed under the third operation module and is configured to receive and store the water for usage.