A method, apparatus, system and computer program is provided for controlling an electric power system, including implementation of voltage measurement using paired comparison analysis applied to calculating a shift in average usage per customer from one time period to another time period for a given electrical use population where the pairing process is optimized using a novel technique to improve the accuracy of the measurement.

A power delivery system may include a power converter configured to electrically couple to a power source and further configured to supply electrical energy to one or more loads electrically coupled to an output of the power converter, and control circuitry configured to select a constraint factor from a plurality of different constraint factors based on at least one of an input voltage to the power converter and a power level available to the power converter, and control the power converter in accordance with the constraint factor.

Information to be displayed on a display is generated in such a way that a gateway processes a measured value (with a time stamp) transmitted from a power meter, an appliance monitor, a solar module, and a battery center through a wireless LAN. In the gateway, information relating to the consumed electric energy is synchronized with each other by the time stamp. Further, an integrated value of the consumed electric energy is calculated with respect to time. The information can be secured by obtaining the integrated value of data even if breakdown of devices and the like occurs due to power failure.

Aircraft power and propulsion systems and methods of operating the systems, one method includes: operating electric machines of gas turbine engines as generators to extract mechanical power from spools and generating electrical power therefrom; meeting an electrical power demand of a plurality of electrical loads connected with an electrical system by supplying the plurality of electrical loads with electrical power generated by the electric machines; determining when there is an electrical system and/or the gas turbine engine fault and an amount of electrical power generated by the power and propulsion system is reduced to a lower level; and responsive to the determination: during a time period ΔT, controlling the plurality of electrical loads reducing the electrical power demand; and during the time period ΔT, meeting at least part of the electrical power demand of the plurality of electrical loads by discharging the electrical energy storage system.

A power control system with a power management apparatus and a power monitoring control apparatus for each control segment. The power monitoring control apparatus is provided with: a contribution degree setting unit setting the degree of contribution of each control segment; a device control unit controlling the power consumption of each power using device connected; a priority control unit setting a priority for reducing the power of the power using device; and a device monitoring unit obtaining the priority of each power using device and transmitting the obtained priority to the power management apparatus. The power management apparatus is provided with an optimum control calculation unit determining a control command for controlling each power using device connected. The control command is determined based on: a target value of the total power consumption of all the control segments; the degree of contribution; and the priority of each power using device.

A server comprises a notification unit that sends a power reduction request to a user terminal of a consumer; and a controller that acquires smart meter information sent from the user terminal when the consumer accepts the power reduction request. The smart meter information is information regarding a smart meter of a consumer facility that is a target for power reduction. The controller determines actual reduced power of the consumer facility based on the smart meter information.

There is provided a power supply arbitration device that makes it possible for side of a power consumer to take initiative to stabilize a power grid and suppress peak power for the power consumer. The power supply arbitration device including a control unit, a communication unit that communicates with another device through a communication network, and a storage unit that stores information, in which, in a case where a power request received by the communication unit is requested from a power consumption device registered in the storage unit, the control unit specifies a power supply device registered in the storage unit as a power feeding device that supplies power requested by the registered power consumption device on a basis of a power consumption profile associated with the registered power consumption device.

A power management system comprises a plurality of HEMSs 10 and CEMSs 40. The CEMS 40 receives, from each HEMS 10, power information including the amount of power consumed by a load connected to each HEMS 10. The CEMS 40 transmits, to each HEMS 10, reduction information including the amount of power that should be reduced in each consumer, in response to a curtailment signal and the power information.

A system for managing electrical loads includes a plurality of branch circuits, a sensor system, and control circuitry. The sensor system is configured to measure one or more electrical parameters corresponding to the plurality of branch circuits, and transmit one or more signals to the control circuitry. The control circuitry is configured to determine respective electrical load information in each branch circuit based on the sensor system, and control the electrical load in each branch circuit using controllable elements based on the respective electrical load information. The control circuitry transmits usage information, generates displays indicative of usage information, accesses stored or referencing information to forecast electrical load, and manages electrical load in response to identified events. The control circuitry can associate each branch circuit with reference load information, and disaggregate loads on each branch circuit based on the reference load information and on the electrical load in the branch circuit.

Systems and methods for performing actions in response to charging events, such as charging events associated with a specific electric vehicle and/or a specific charging station, are described. In some embodiments, the systems and methods may receive a request from an electric vehicle to identify a charging station from which to charge a battery of the electric vehicle, provide information associated with the electric vehicle to one or more charging stations proximate to the electric vehicle, receive from the one or more charging stations information identifying parameters associated with potential charging events provided by the one or more charging stations, and provide the information identifying the parameters associated with potential charging events provided by the one or more charging stations to the electric vehicle.