To effectively determine premises as a counterpart for transmission or reception of power in a case of interchanging direct-current power between respective premises A control device (110) according to the present invention includes a power control unit (114) configured to determine a node that performs transmission or reception of direct-current power to or from an own node by using profile information indicating a power usage state of each of the nodes exchanging direct-current power with each other.

A frequency response optimization system includes a battery configured to store and discharge electric power, a power inverter configured to control an amount of the electric power stored or discharged from the battery at each of a plurality of time steps during a frequency response period, and a frequency response controller. The frequency response controller is configured to receive a regulation signal from an incentive provider, determine statistics of the regulation signal, use the statistics of the regulation signal to generate an optimal frequency response midpoint that achieves a desired change in a state-of-charge (SOC) of the battery while participating in a frequency response program, and use the midpoints to determine optimal battery power setpoints for the power inverter. The power inverter is configured to use the optimal battery power setpoints to control the amount of the electric power stored or discharged from the battery.

A system of modules which control and measure energy usage at a building which are in communication with a software program executing on a remote server controlled by a third party. The third party said usage via the software program which communicates with the modules to modify energy usage and demand for energy and is responsible or liable for energy usage charges the building where the third party does not actually use the energy.

A power supply device which is used as a backup power supply, including a power supply side acquisition unit that acquires information related to a position of the power supply device.

A electrical distribution system has been developed to provide a remote central control point for individual circuits, and methods have been developed for retrofitting it to existing service panels or installing it into new service panels. This system provides a power circuit monitoring and control system that fits inside standard residential service panels, both new and retrofitted panels. The entire system can be retrofitted into existing breaker panel systems without the need of removing any permanent structure such as a wall. During this retrofit process, the panel cover on the existing distribution panel is first removed after the power to it is disconnected. The old breaker assembly is removed from the panel, and a circuit controller is then installed in the now available space within the panel. A new service panel enclosure with a circuit breaker assembly is installed directly over top of the enclosure.

Provided is a microgrid system having: a plurality of distributed power sources; a plurality of distributed loads; and lines for connecting the distributed power sources and the distributed loads, the microgrid system including: an ESS for storing power supplied from all or a portion of the distributed power sources and supplying the stored power to all or a portion of the distributed loads; an ESS PCS including an interruption means for converting the power stored in the ESS into AC power suitable for the microgrid and supplying the AC power to the microgrid in order to block connection to the microgrid in an abnormal state; and a monitoring/control device for gradually increasing a voltage output from the ESS PCS and performing processing for the failure when a failure is detected in the microgrid.

A multiplicity of uninterruptible power supply (UPS) devices may be equipped with a plurality of sensors which report on the state of various operational parameters of the UPS devices to a registry device. Output of the registry device may be displayed on a dedicated GUI and/or written to log files at a monitoring station. In the event that one or more sensors reports a parameter to the registry device which is indicative of a malfunction of one or more of the UPS devices, examination the registry device output may indicate which UPS device or devices is/are malfunctioning. Related embodiments, apparatus, systems, and methods are also discussed.

A building energy system includes a controller configured to obtain representative loads and rates for a plurality of scenarios and generate a cost function comprising a risk attribute and multiple demand charges. Each of the demand charges corresponds to a demand charge period and defines a cost based on a maximum amount of at least one of the energy resources purchased within the corresponding demand charge period. The controller is configured to determine, for each of the multiple demand charges, a peak demand target for the corresponding demand charge period by performing a first optimization of the risk attribute over the plurality of the scenarios, allocate an amount of the one or more energy resources to be consumed, produced, stored, or discharged by the building equipment by performing a second optimization subject to one or more constraints based on the peak demand target for each of the multiple demand charges.

The present disclosure provides a method and a system for the production and storage of electric energy. The method performed by a central control unit includes providing the power supply to a customer location from an electrical power supply system. The method further includes determining whether power supply is available from a remote power system. The availability of the power supply is determined based on determining whether electric power is being exchanged with an interface electrically connecting a gateway AC battery of the electrical power supply system to the remote power system. The method further includes charging and discharging of the AC batteries using power supply that is being exchanged between the gateway AC battery and the remote power system for providing power supply from the gateway AC battery to the customer location, and from photovoltaic panels equipped with AC/DC converters.

The present disclosure provides methods and systems for automatically controlling power supply from an electrical power supply system to a user location based on payment status. The method performed by a central control unit includes determining a payment status of the electrical power supply system at the user location. The payment status is determined based at least on a time credit associated with the electrical power supply system. The method further includes facilitating control of the power supply from the electrical power supply system to the user location based on determining the time credit. The power supply to the user location from the electrical power supply system is uninterrupted, if the time credit is greater than a predefined threshold value. The power supply to the user location from the electrical power supply system is disconnected, if the time credit is less than the predefined threshold value.