The present invention provides a power trading system that executes power trading between a plurality of apparatuses, wherein at least one apparatus of the plurality of apparatuses includes a management unit configured to manage electric energy of a battery, and the management unit manages the electric energy of the battery by discrimination between electric energy derived from exhaustible energy and electric energy derived from renewable energy.

An industrial asset management system includes a data acquisition system configured to receive asset data associated with at least one industrial asset and to modify the data acquisition system to enable the continued receipt of asset data associated with the at least one industrial asset in response to a detection of an internal change at the data acquisition system by the data acquisition system and a data processing system communicatively coupled to the data acquisition system and configured to process the asset data received from the data acquisition system and to modify the data processing system for the continued processing of the asset data in response to a detection by the data processing system of an internal change at the data processing system or the data acquisition system.

A cable that can be used for bidirectional power transmission between a vehicle provided with a driving power source and a power consumer includes: a receiving unit that: communicates with a power-amount acquiring device that is installed at the power consumer, and acquires an amount of power transferred between the power consumer and a power network; and receives identification information of the power consumer; a measuring unit that measures a transmission power amount of power transmitted between the vehicle and the power consumer through the cable; and a transmission information sending unit that sends, to an external managing apparatus that manages an amount of power transmission between the vehicle and the power consumer, the identification information of the power consumer, and information indicating the transmission power amount measured by the measuring unit.

The present specification relates to a data collection apparatus of a power system, the data collection apparatus comprising: a communication unit that communicates with a plurality of sites using different communication protocols to receive, from the plurality of sites, data about energy use information; a storage unit that stores a plurality of data models respectively corresponding to the communication protocols to store the data in each of the plurality of data models; and a processing unit that generates a basic data model by performing data modeling according to any one of the communication protocols, generates one or more extended data models by performing data modeling according to the rest of the communication protocols, includes the extended data models in the basic data model, and stores the included extended data models in the storage unit.

An electrical power generating system for providing auxiliary or backup power to a load bus. The system may be used indoors, and generally includes a fuel cell unit comprising a first DC output, an electrical storage unit comprising a DC input coupled to the first DC output of the fuel cell, the electrical storage unit further comprising a second DC output. An inverter coupled to the second DC output receives power, the inverter comprising a first AC output. The system includes a contactor connected between the first AC output and an AC load bus. The AC load bus comprises an AC voltage, and a controller comprising inputs is adapted to sense a phase, a frequency, and a magnitude of the first AC output and the AC voltage and close the contactor when they substantially match.

Technologies are generally described for addressing the bidirectional power flow conflict incurred by power surpluses produced from a number of households' on-location energy generation units (e.g., solar) in power distribution networks. A micro grid composed of households in a neighborhood may be considered as a generating- or consuming-resource entity at different time periods. The approach may be formulated as a power balance computation such that power balance may not be achieved within the micro grid itself, and therefore power sharing (or redispatching) among micro grids is operated, before requesting power from the macro grid, i.e., the fuel-based conventional grid. Enhancement of renewable energy utilization and reduction in the amount of data packet traffic in exchange of information and control messages via uplink and downlink transmissions throughout an overlay multi-tier communications network infrastructure may be taken into consideration in example implementations.

Embodiments of the disclosure provide a method for controlling a power generation system during on-line maintenance. The method includes operating the power generation system in a first maintenance mode, which causes a controller of the power generation system to disable an automated response to at least one operational fault of the power generation system; monitoring a risk parameter of the power generation system or at least one sensor within the power generation system while operating the power generation system in the first maintenance mode; and operating the power generation system in a second maintenance mode in response to detecting an override command, an elapsed time exceeding a time limit, or the monitored risk parameter exceeding a safety threshold. The second maintenance mode causes the controller of the power generation system to enable the automated response to the at least one operational fault of the power generation system.

An energy saving support system according to an embodiment is configured to provide a consumer, who has an electric load to which electric energy is supplied from an electric power supply system within a house, with energy consumption-related information through a photo frame or the like. The information providing apparatus is configured to acquire an acceptability level, which stepwise indicates a degree of interest of the consumer in the energy consumption-related information, and to determine the energy consumption-related information to be newly provided to the consumer based on the acceptability level.

An electrical appliance having at least one electrical load, and a digital control system managing flows of electric current of supply of the at least one electrical load, wherein the digital control system of the electrical appliance transmits information to an external control device, wherein said information comprises first information regarding authorization or non-authorization for an interruption of the supply of electric voltage to the electrical appliance by the external control device, the digital control system of the electrical appliance generating the first information of its own operating state.

A control system for a solar power plant includes: plural power conditioning systems performing grid connection control of transmission of electrical power generated by a solar power generator to a power grid; and a supervisory controller which issues a target output command to each power conditioning system so that interconnection point electrical power, electrical power fed to the power grid, becomes equal to or smaller than an upper limit output value. The supervisory controller: receives an urgent request including information related to a time of day at which the upper limit output value is scheduled to be changed and the scheduled upper limit output value; and calculates a target value of the interconnection point electrical power for each time of day so that the interconnection point electrical power conforms to the scheduled upper limit output value by the scheduled time of day.