Power Management Device and System

A power management system configured for centrally controlling decentralized energy storage, the system comprising:

• multiple user-side power management devices;
• a power grid including an electrical power source for delivering electricity to a plurality of consumers through the power grid, some or all of the plurality of consumers having at least one of the user-side power management devices;
• wherein each of the power management devices is electrically coupled to said power grid for receiving electrical energy from the power grid and for delivering electrical power from the energy storage device or directly from the said power grid to the consumer;
• wherein each of the power management devices comprise an energy storage device for storage of electrical energy from the power grid;
• wherein each of the power management devices comprise a micro controller for controlling the energy storage by the power management device;
• wherein the system is configured for centrally controlled, distributed, and decentralized electrical energy storage by the power management devices;
• wherein each of the power management devices comprise a communication interface for receiving control commands, the communication interface being functionally connected to the micro controller for submitting received control commands to the micro controller;
• and
• wherein the system is configured for providing control commands to the communication interface of each of the power management devices for controlling the charging and discharging of the energy storage of the power management devices.

A method for centrally controlling decentralized energy storage in a power management system, the power management system comprising:

• multiple user-side power management devices;
• a power grid including an electrical power source for delivering electricity to a plurality of consumers through the power grid, each of the plurality of consumers having at least one of the user-side power management devices;
• wherein each of the power management devices is electrically coupled to said power grid for receiving electrical energy from the power grid and for delivering electrical power from the energy storage device to the consumer;
• wherein each of the power management devices comprise an energy storage device for storage of electrical energy from the power grid;
• wherein each of the power management devices comprise a micro controller for controlling the energy storage of the power management devices;
• wherein the system is configured for centrally controlled, distributed, and decentralized electrical energy storage by the power management devices;
• wherein each of the power management devices comprise a communication interface for receiving control commands, the communication interface being functionally connected to the micro controller for submitting received control commands to the micro controller;
• wherein the system is configured for providing control commands to the communication interface of each of the power management devices for controlling the charging and discharging of the energy storage of the power management devices;
• and
• wherein the method comprises:
• sending a control command selectively to one or more of the power management devices for storing or discharging electrical energy selectively by the one or more of the power management devices;
• and
• using the micro controller of the respective power management device or devices, receiving the control command through the communication interface and, as a result, thereof causing receipt of electrical energy from the power grid thereof in the respective energy storage device or devices or discharging electrical energy from the storage device or devices.