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 Direct Connect Homegrid (DC-Homegrid) system for Direct Current (DC) power control and delivery into a structure by way of Unifying Electrical Interface (UEI) platforms is here presented. By means of the Homegrid, multiple self-contained approaches are introduced to keep a structure powered with DC, either as a substitute or as a supplement to the conventional Alternating Current (AC) source. By the illustrated approaches contained herein, a new methodology permitting to retain power operation in the occurrence of a blackout, due to natural disaster, cyber-attack or any other conventional AC grid failure, is revealed. Such DC-Homegrid is envisioned to become the precursor in establishing the DC infrastructure of the future. The embodiments presented in this patent illustrate alternate methods for achieving power independence while increasing the value for adoption of renewable and sustainable energy.

The invention provides a safe multi-directional charger, including a charging portion and a battery portion, wherein the charging portion is provided with a current display and a charging slot, and the battery portion is provided with a battery. The battery is connected with a USB interface and a switch. The bottom of battery portion is provided with a solar panel for power generation, and the shell is equipped with a connecting ring and a hook. The invention can solve the problems of abnormal equipment working and current during charging through current display device and the charging failure without direct connection of power supply through solar panel.

Distributed energy storage within the distribution network of an electric power network at least partially supplied by time varying and unpredictable generation sources provides smoothing of energy flow within the distribution network. The distributed energy storage may include a plurality of distributed energy storage units operating under the control of a single controller or regional controllers. The distributed energy storage units may operate as groups of units or as separate units.

An electrical circuit and a method for using the electrical circuit are disclosed. In an embodiment an electrical circuit includes an energy transducer, an energy storage system, a first terminal and a second terminal, wherein the energy transducer is electrically coupled with the first and second terminals, wherein the energy storage system is electrically coupled with the first and second terminals, wherein the energy transducer is configured to charge the energy storage system at discrete time intervals, wherein the energy storage system is configured to provide energy continuously, wherein the energy transducer includes a solar cell, and wherein the energy storage system includes a solid-state storage battery.

This invention relates generally to the field of solar energy renewable power supplies with energy storage and intelligent controls for powering elements of infrastructure. The solar generator has a housing having a first and a second parallel and congruent triangular end faces and rectangular faces perpendicular to the triangular faces, defining an interior volume. A base is formed on one of the rectangular faces and a solar panel is mounted on at least two of the rectangular faces for receiving the solar power energy and producing electrical potential. At least one solar charge controller is electrically connected to the solar panels and one or more rechargeable batteries are electrically connected to the at least one solar charge controller. The solar charge controller and the batteries are mounted on the base within the interior volume of the housing to form a unitary solar generator assembly.

Provided herein in accordance with the present invention, are nano-devices (or nano-components), composite-nano-devices, and methods of manufacturing and using the nano-devices and composite-nano-devices.

The present disclosure relates to a reconfigurable battery system and method of operating the same. The reconfigurable battery system comprising a plurality of switchable battery modules, a battery supervisory circuit, and a battery pack controller, where the plurality of switchable battery modules electrically arranged in series to define a battery string defining an output voltage. The battery pack controller operable to connect the battery string to the external bus via a pre-charge switch to perform a pre-charge cycle.

The present disclosure relates to a reconfigurable battery system and method of operating the same. The reconfigurable battery system comprising a plurality of switchable battery modules, a battery supervisory circuit, and a battery pack controller, where the plurality of switchable battery modules electrically arranged in series to define a battery string defining an output voltage. The battery pack controller operably coupled to the battery supervisory circuit to selectively switch, for each of the plurality of switchable battery modules, the battery switch between the first position and the second position based at least in part on the one or more parameters of the battery and in accordance with a predetermined switching routine.

A solar cell mounting apparatus and methods for supporting solar panel sets on a pole. The invention contemplates both vertical and horizontal cell support arrangements and embodiments configured to installation in urban areas and embodiments providing protection of components in high wind areas.