A hydride heat engine produces electricity from a heat source, such as a solar heater. A plurality of metal hydride reservoirs are heated by the heating device and a working fluid comprises hydrogen is incrementally move from one metal hydride reservoir to a success metal hydride reservoir. The working fluid is passed, at a high pressure, from the last of the plurality of metal hydride reservoirs to an electro-chemical-expander. The electro-chemical-expander has an anode, a cathode, and an ionomer therebetween. The hydrogen is passed from the anode at high pressure to the cathode at lower pressure and electricity is generated. The solar heater may be a solar water heater and the hot water may heat the metal hydride reservoirs to move the hydrogen. The working fluid may move in a closed loop.

A solar water pasteurizer has a water jug removably disposed in a solar box with insulation and a solar window. The water jug has a lid to close an aperture in the solar box and a handle thermally isolated from the water jug to facilitate handling of the water jug with heated water. Multiple water jugs can be swapped in and out of the solar box. The solar box also has a thermal mass to preserve some heat in the solar box.

A solar water pasteurizer has a water jug removably disposed in a solar box with insulation and a solar window. The water jug has a lid to close an aperture in the solar box and a handle thermally isolated from the water jug to facilitate handling of the water jug with heated water. Multiple water jugs can be swapped in and out of the solar box. The solar box also has a thermal mass to preserve some heat in the solar box.

A system for collecting solar energy to be stored and distributed in a multi-unit building to be used for heat and electricity, comprising one or more solar energy collectors, one or more sunlight concentrating mirrors, photovoltaic panels, a heat mass storage area, and thermos siphoning to distribute heat energy throughout the building in conjunction with radiant heating technology.

A portable solar shower is a showering device that can heat the water in a tank to a user defined temperature, with the help of a large solar panel. In order to accomplish that, the device includes a thermostat that displays multiple temperatures, a vacuum insulated water tank that helps maintain the temperature of the water at the user defined temperature level for long hours, and a retractable showerhead and shower pipe. Further, the device is mounted over an upper surface of a vehicle, thereby not compromising any luggage or trunk space of the vehicle. The portable solar shower further includes a power unit that provides power to water pumps and all the necessary circuitry within the device. Furthermore, the device includes an additional smaller solar panel that can provide energy to the power unit, thereby enabling the user to run the shower unit on natural renewable sources of energy.

A hybrid photovoltaic-thermal system provides co-generation of electrical energy and thermal energy. Electrical energy is efficiently generated by photovoltaic panels that are cooled by heat exchangers attached thereto, and the cooling of the photovoltaic panels improves the energy output efficiency of the photovoltaic panels. The heat exchangers flow fluid through its channels, and the fluid collects heat from the photovoltaic panels to which the heat exchangers are attached. The heated fluid is then received at and stored in a thermal battery. The thermal battery can be a fluid tank that encourages the fluid to retain the heat collected from the photovoltaic panels. The thermal battery can then supply the heated fluid to thermal loads as thermal energy.

A hybrid photovoltaic-thermal system provides co-generation of electrical energy and thermal energy. Electrical energy is efficiently generated by photovoltaic panels that are cooled by heat exchangers attached thereto, and the cooling of the photovoltaic panels improves the energy output efficiency of the photovoltaic panels. The heat exchangers flow fluid through its channels, and the fluid collects heat from the photovoltaic panels to which the heat exchangers are attached. The heated fluid is then received at and stored in a thermal battery. The thermal battery can be a fluid tank that encourages the fluid to retain the heat collected from the photovoltaic panels. The thermal battery can then supply the heated fluid to thermal loads as thermal energy.

Inventive concentrated solar power systems using solar receivers, and related devices and methods, are generally described.

Inventive concentrated solar power systems using solar receivers, and related devices and methods, are generally described.

The present disclosure discloses a wind-solar reactor system and a working method thereof. The wind-solar reactor system comprises a nuclear reactor system, a wind power generation system, a solar power storage system and a balance energy system, wherein the nuclear reactor system uses an integrated small modular reactor design, the solar power storage system uses a tower-type solar power storage system design, and a hydrogen production system uses a copper-chlorine cycle hydrogen production technology. A reactor keeps rated full-power operation, generated electricity is adjusted and distributed through a power controller, most of the electricity is used for smoothing the fluctuation of wind power generation, and the excess electricity is used for hydrogen storage of the hydrogen system. Solar power is used for heating saturated steam generated by the reactor into superheated steam through a heater, and then the superheated steam enters a high-pressure cylinder to do work by expansion.