The present invention relates to a solar powered electric generator having a housing having at least one vent to allow air to exit from inside of the housing and at least one air intake allow air to enter the housing. The solar powered electric generator includes a cooling fan to blow air out of the at least one vent and a threaded electrical input connector to receive electrical energy from a solar panel array. The solar powered electric generator includes at least one rechargeable battery, at least one electrical output connector, and at least one electrical controller distribute electrical power received from the threaded electrical input connector to the at least one rechargeable battery and the at least one electrical output connector. The solar powered electric generator includes an adjustor that allows a user to adjust the output electrical energy to the at least one electrical output connector.

Provided herein are systems and methods for storing energy. A photon battery assembly may comprise a light source, phosphorescent material, a photovoltaic cell, and a waveguide. The phosphorescent material can absorb optical energy at a first wavelength from the light source and, after a time delay, emit optical energy at a second wavelength after a time delay. The photovoltaic cell may absorb the optical energy at the second wavelength and generate electrical power. In some instances, a first waveguide may be configured to direct the optical energy at the first wavelength from the light source to the phosphorescent material and/or a second waveguide may be configured to direct the optical energy at the second wavelength from the phosphorescent material to the photovoltaic cell.

Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

An electric water desalination assembly for desalinating water without burning fossil fuels includes an evaporator and a renewable electrical power generation system. The renewable electrical power generation system is electrically coupled to the evaporator for providing power to the evaporator. The evaporator is fluidly coupled to a source of salt water for boiling the salt water into desalinated steam. Additionally, the evaporator is fluidly coupled to the water desalination system for processing the desalinated steam into freshwater. Additionally, the water desalinating system is fluidly coupled to a freshwater distribution system. In this way the freshwater distribution system receives freshwater from the water desalination system.

Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

A mobile device includes an outer package, a first solar panel, and a controller. The first solar panel includes a plurality of first photoelectric converters generating electrical power based on light which enters from a first surface of the outer package and being disposed side by side. The controller determines a magnitude of a light volume of light entering the first solar panel for each of the plurality of the first photoelectric converters, and executes notification processing of transmitting an instruction to provide a notification based on a total number of first photoelectric converters whose light volume is determined to be large in the plurality of the first photoelectric converters.

A portable power system comprising: an enclosure having an un-deployed position wherein a first solar panel and a second solar panel are obscured by the enclosure; a battery module carried by the enclosure; a control module programmed to configure the system among a plurality of configurations including: an external charge configuration wherein the system is configured to receive an external power to charge the battery module; a solar charge configuration wherein the system is configured to receive solar generated power generated from at least one of the first solar panel and the second solar panel, and charge the battery module with the solar generated power; and, a solar and battery configuration wherein the system is configured to convert the power from at least one of the first solar panel and the second solar panel combined with power from the battery to an output.

Methods and devices for forming painted circuits using multiple layers of electrically conductive paint. In one aspect, a painted circuit includes a substrate (111) and one or more paint layer (106, 108, 110, 112, 114, 116, 120, 122) applied to the substrate, where the one or more paint layers each form an electrical component of the painted circuit. A given paint layer of the one or more paint layers includes a conductive paint formulation having a resistance that is defined by a concentration of conductive material that is included in the conductive paint formulation and a thickness of the given paint layer, and lower concentrations of the conductive material included in the conductive paint formulation provide a higher resistance than higher concentrations of conductive material.

A light wavelength conversion member in which silicon nanoparticles are dispersed having a higher photoluminescence intensity, a method of production of the same, a photovoltaic module, and a photovoltaic cell, in particular, a light wavelength conversion member comprised of a substrate on one surface of which is formed a silicon oxide film in which silicon nanoparticles of a size of 1 nm to 10 nm are dispersed, the silicon oxide film, when the silicon oxide film is measured by the electron spin resonance method, having a spin density in the range of g=1.998±0.001 of 1×10.sup.16/cm.sup.3 or less and a spin density in the range of g=2.003±0.001 of 3×10.sup.16/cm.sup.3 or less and having a photoluminescence quantum yield with respect to incident light of a wavelength of 300 nm to 500 nm of 15% or more.

A stackable power supply device, container or unit is provided. The power supply device includes an energy conversion module, such as a solar panel. The power supply device includes several power outlets, such as an interface to recharge rechargeable batteries for power tools, an electrical outlet, and a battery to store energy generated by the solar panel. The power supply device is stackable within a modular storage system.