A power charging and selling device includes first and second connection units configured to be connected to an electric vehicle and at least one power supplier server, respectively; a control unit for receiving a unique identifier and battery information of the electric vehicle through the first connection unit and for receiving power-trading charge information provided from each power supplier server through the second connection unit; and a guide unit for advertising the received power-trading charge information and for enabling selection of a corresponding power supplier. Through the first connection unit, the control unit may charge the electric vehicle with the power of a selected power supplier or sell the power stored in the electric vehicle to a selected power supplier. The power charging/selling device receives charge information from power suppliers, and a user selects the charging/selling scheme accordingly, even if the power source of the electric vehicle is turned off.

A computer-implemented method of managing energy supply agreements that includes: connecting to a permissioned blockchain, the blockchain being accessible only by energy suppliers, energy transmission companies and government agencies that regulate a market for the supply of energy by energy suppliers to energy transmission companies; creating a new block for an energy purchase agreement that provides for the purchase of energy by an energy transmission company from an energy supplier; appending the new block having the energy purchase agreement to the blockchain; and responsive to the energy supplier supplying a quantity of energy to the energy transmission company in an individual energy transaction, appending the individual energy transaction as a block to the blockchain.

A vehicle includes a supply unit supplying electric power to a target apparatus, a first reception unit receiving settlement information including an amount of charge to be charged to a user as value for a service provided by the target apparatus, from the target apparatus being supplied with electric power, a first transmission unit transmitting the settlement information and a user identifier to a settlement apparatus, a second reception unit receiving a notification indicating that settlement of the amount of charge is possible or settlement of the amount of charge has been completed from the settlement apparatus, and a second transmission unit transmitting information indicating that settlement of the amount of charge is possible or settlement of the amount of charge has been completed to the target apparatus so as to cause the target apparatus to execute the service in a case where the notification is received.

Provided is a user compensation method based on a battery sharing system for electric vehicles, including: requesting battery sharing from an external device for vehicle battery charging; calculating a shared power amount provided from the external device; calculating shared power information having a large weight in proportion to meta information for accelerating the shared electric power amount and battery consumption; and calculating occupant compensation based on the weight of the shared power information. One or more of an autonomous vehicle, a user terminal, and a server of the present disclosure may be in conjunction with an Artificial Intelligence (AI) module, an Unmanned Aerial Vehicle (UAV), an Augmented Reality (AR) device, a Virtual Reality (VR) device, and a device related to a 5G service, etc.

Provided is a system for constructing mobile electric energy interconnection. The system includes at least one mobile electric energy exchange device, a mobile electric energy interconnection management platform and at least one stationary electric energy interconnection device. The mobile electric energy interconnection management platform is configured to match the at least one mobile electric energy exchange device with the at least one stationary electric energy interconnection device, and push a matching result to the at least one mobile electric energy exchange device and the at least one stationary electric energy interconnection device. Also provided is a method for constructing mobile electric energy interconnection, a data testing method and device, and a computer readable storage medium.

Systems and methods for performing energy transactions including a number of market participant nodes associated with an energy market participant, and a number of market authority node devices associated with a market authority. A network operator node device is further included, which is associated with a network operator. The market participant node device, the market authority node devices, and the network operator node devices are configured to communicate with each other to facilitate an energy transaction.

Systems and methods for financial settlement of transactions within an electric power grid network are disclosed. A multiplicity of active grid elements are constructed and configured for electric connection and network-based communication over a blockchain-based platform. The multiplicity of active grid elements are operable to make peer-to-peer transactions based on their participation within the electric power grid by generating and executing a digital contract. The multiplicity of active grid elements generate messages autonomously and/or automatically within a predetermined time interval. The messages comprise energy related data and settlement related data. The energy related data of the multiplicity of active grid elements are based on measurement and verification. The energy related data and the settlement related data are validated and recorded on a distributed ledger with a time stamp and a geodetic reference.

A power supply system comprises a portable first power supply device and second power supply device. The portable first power supply device has a handle to be gripped by a hand of a user. A supply unit of the portable first power supply comprises an inverter circuit which converts at least a portion of excess power into an alternating current, and supplies to the second power supply device via a second connection unit and a power line, power of the alternating current outputted from the inverter circuit.

A method of managing energy service for a plurality of assets of different types connected to a plurality of grid connection points includes determining, by a respective asset, a quantity of the energy service to be realized by the respective asset during a connection event; responsive to the respective asset being of a first type; detecting a grid connection point identifier that identifies an associated grid connection point associated with the respective asset of the first type used for the connection event; and sending, by the respective asset, connection event information, wherein the connection event information includes at least one of: the determined quantity of the energy service and an asset identifier, responsive to the respective asset not being of the first type; or the determined quantity of the energy service and the detected grid connection point identifier, responsive to the respective asset being of the first type.

A power demand management system includes a plurality of power-prepaid appliances and a power demand management server. Each of the power-prepaid appliances includes an authenticator configured to manage an authentication key, a control setting unit configured to receive a power consumption control signal containing a power reduction amount from the power demand management server and to set control information according to the power reduction amount, and an operation control signal generator configured to generate an operation control signal based on the control information selected by the control setting unit. The power demand management server includes a demand resource allocator configured to allocate the power reduction amount to each power-prepaid appliance, a security unit configured to encrypt the power consumption control signal based on the authentication key of each power-prepaid appliance, and a reduction manager configured to monitor a reduction in power consumption depending on the power consumption control signal.