An apparatus includes a platform or other accessory that is supported by one or more piezoelectric transducers. As items are placed on or removed from the accessory, the piezoelectric transducer generates an electric charge that is representative of a change in weight. An amplifier receives the charge and provides output voltage that can be sampled to determine a weight value. In one implementation the platform may be supported by a transducer assembly comprising a frame and a pair of piezoelectric transducers on opposite sides of the frame. Signals from the pair may be used to compensate for environmental effects on the assembly, such as changes in temperature. The piezoelectric transducers and associated circuitry are extremely energy efficient, consuming little electrical power during operation.

Disclosed is an electrical repellent device comprising an electric generator (50) connected via its two terminals to a conductive composite tape (3) around an object to be protected and connecting the electric generator (50) and the conductive composite tape (3), the connector being characterized in that it comprises: support (1) made from metal material or insulating polymer; and at least two rods (15) mounted on the support (1) and each comprising, on their outer surface, at least one conductive element (20); and a pressure component keeping the at least one conductive element (20) in contact with at least one conductive strip (31) or the composite tape (3); and two connection terminals configured to apply the potential difference that exists between the two terminals of the electric generator (50) and the conductive elements.

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 invention relates to an apparatus and method for the localized capture, storage and specialized use of power generated from natural sources, such as solar power or hydropower. The apparatus can be used, for example, on a deck or a side of a marine vessel, or on a land-based structure, where there is a requirement for managed power generation and storage.

A renewable-energy electrical generation and distribution system including a first container and a second container. Each of the first container and the second container includes a power source disposed within the container and deployable therefrom, and generating energy from a renewable resource. A first compartment is disposed within the container, and retains a battery in communication with the power source. A power distribution system is disposed within the container and in communication with the battery and with the power source. A communications system is disposed within the container and configured to communicate data via an ad-hoc mobile communications network formed by the first container and the second container and configured to operate independent of any communication network not part of the first container and the second container forming the ad-hoc mobile communications network.

The invention concerns a table-top charging base having two parallel L-shaped members supporting a charging station therebetween with four screws inserted in proportional facing identical holes. A detachable solar collector is magnetically detachable to one of the two L-shaped members. A detachable price list is also magnetically attached to another of the two L-shaped members. The two L-shaped members each carry a strip trim to support an electronic device safely during recharging. The table-top charging base allows for display of advertisements to consumers in exchange for recharging electronic devices, for example.

Provided is a method of capturing and recycling carbon dioxide from on-island combustion emissions using sustainable solar energized aquaculture of algae, including the steps of: generating electrical power from at least two renewable power producing systems, wherein the renewable power producing systems comprise at least a solar photovoltaic cell and a water turbine; and storing the electrical power in a battery array.

A method of controlling a flying object 1 including a generator 5, which includes solar cells, and an energy storage apparatus 7 is configured such in a case where, during flying of the flying object 1, a voltage of an energy storage device 6 in the energy storage apparatus 7 reaches a lower limit voltage of a voltage range in which charge and discharge of electricity can be reversibly repeated, the flying object 1 is made to keep flying and/or descend while making the energy storage device 6 discharge electricity within a voltage range lower than the lower limit voltage.

A sensor device includes: a primary battery; a secondary battery that is charged by energy harvesting; a sensor that is operated by electricity supplied from the primary battery or from the secondary battery; a source-of-electricity switching circuit that switches a source of electricity for the sensor between the primary battery and the secondary battery; a notification unit that makes a notification indicating information; and a controller that controls the sensor and the notification unit. The source-of-electricity switching circuit switches the source of electricity to the primary battery when a voltage of the secondary battery falls below a predetermined first reference voltage in the case where the source of electricity is the secondary battery. The controller causes the notification unit to make a notification indicating that an operation of the secondary battery is unstable, when the voltage of the secondary battery falls below the first reference voltage.

The invention concerns a table charging base consisting of two parallel angles of type L (1) (FIG. 1.2) where the charging station (2) is supported between them, by keeping it in place with four screws (3) to the proportional facing identical holes (7). Magnetically attached detachable part is the solar collector (9) alternative recharge to the charging station as well as the magnetically attached detachable price list—promotion (18) double sided. The magnetic detachable solar charger (9), as well as the magnetic detachable price list—promotion (18) double sided can be operated independently to the end user. The two parallel angles of type L (1) carry two strip trim (19) solid material attached to the bases of the angles to support the electronic devices safely during recharging.