Provided is a network system. The network system includes: at least one unit selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. An energy usage amount or energy usage rate of the energy receiving unit is adjusted; an energy usage amount or usage rate when the unit is controlled based on information relating to at least an energy rate is less than that when the unit is controlled without the base of information relating to at least an energy rate; the energy receiving unit comprises a plurality of components; and an operation of one component among the plurality of components is controlled based on the energy rate related information.

A line-in power is connectable to the disclosed outlet housing similar to any known power outlet. This provided power is used to drive an AC/DC converter to create a DC bus internal to the outlet housing. This DC bus powers the electronics, including, for example, a wireless transceiver incorporated within the outlet housing. In at least one instance, the wireless transceiver will receive a command from another wireless device to turn power ON or OFF to the local outlet and the downstream (e.g. daisychained, etc.) outlets. These outlets can be wired to the output terminations (push-in and/or other) on the back of the local outlet and/or outlet housing, or may be connected through any other suitable electrical connection.

A network-controlled charge transfer device for electric vehicles includes a control device to turn electric supply on and off to enable and disable charge transfer for electric vehicles, a transceiver to communicate requests for charge transfer with a remote server and receive communications from the remote server, and a controller, coupled with the control device and the transceiver, to cause the control device to turn the electric supply on based on communication from the remote server.

Methods, systems, and computer readable media are disclosed for maintaining photovoltaic power plant reactive power capability, e.g., through the manipulation of direct current (DC) voltage. In some examples, A control system includes a monitor input for receiving a monitor signal indicative of an input voltage of an inverter system and a control output for outputting a control signal to a voltage-clipping device of a solar panel system supplying a solar output voltage to the inverter system. The control system includes a control circuit configured to perform operations comprising: determining, using the monitor signal, that the input voltage of the inverter system exceeds a threshold voltage; and in response to determining that the input voltage of the inverter system exceeds the threshold voltage, causing, using the control signal, the voltage-clipping device to reduce the solar output voltage by shorting out one or more photovoltaic solar cells of the solar panel system.

A server of a network-controlled charging system for electric vehicles receives a request for charge transfer for an electric vehicle at a network-controlled charge transfer device, determines whether to enable charge transfer, and responsive to determining to enable charge transfer, transmits a communication to the network-controlled charge transfer device that indicates to the network-controlled charge transfer device to enable charge transfer.

A power generation apparatus includes a power calculation unit configured to receive voltage information and temperature information from a power generation module, and calculate power generation information of the power generation module based on the received voltage information and temperature information.

A swappable drive train assembly for a vehicle includes a rod removably attachable to a coupling arrangement of the vehicle that defines a first aperture and connects a first vehicle frame component and a second vehicle frame component. The swappable drive train assembly further includes an assembled gear cartridge attachable to the vehicle by the rod. The assembled gear cartridge is configured to rotate about the rod with respect to the coupling arrangement. The assembled gear cartridge is attachable to the vehicle by extending the rod through the first aperture and a second aperture of the assembled gear cartridge which maintains the connection between the first vehicle frame component and the second vehicle frame component while attaching and detaching the assembled gear cartridge.

Methods of securely controlling a utility grid edge device are provided. A method of securely controlling a utility grid edge device includes receiving renewed security information at a node that includes cryptographic circuitry. Moreover, the method includes controlling an operation of the utility grid edge device via the node, after receiving the renewed security information. Related nodes and utility grid edge devices are also provided.

A TET system is operable to vary an amount of power transmitted from an external power supply to an implantable power unit in accordance with a monitored condition of the implantable power unit. The amount of power supplied to the implantable power unit for operating a pump, for example, can be varied in accordance with a cardiac cycle, so as to maintain the monitored condition in the power circuit within a desired range throughout the cardiac cycle.

A controllable electronic switch for, e.g., controlling power distribution comprises a deformable member such as a bimetal arm that can be deformed to break an electrical path. The deformable member may be anchored at one end and in controllable contact with an electrical conductor at the other end. A heating element, such as a coil, can be used to selectively heat the deformable member. The controllable electronic switch can alternatively comprise a deformable member that is terminated in a wedge-shaped member. When the deformable member bends in response to being heated, the wedge-shaped member forces apart a pair of contacts thus breaking an electrical path. The wedge-shaped member and/or associated structures may be configured as a cam mechanism with multiple latching positions.