ENERGY MANAGEMENT SYSTEM FOR A BUILDING AND METHOD FOR MANAGING ENERGY

The present invention relates to an energy management system for a building, comprising at least one first thermal energy storage device for providing domestic hot water, at least one second thermal energy storage device for providing space heating, at least one electrical energy storage device, at least three state of charge analysers for determining the state of charge of said devices, at least one heat pump, at least one renewable energy generation device for providing electrical energy, and a controller configured to control an operation of said devices and to control an operation of the at least one heat pump, wherein the controller is configured to determine a state of charge of the at least one electrical energy storage device based on information of the at least one third state of charge analyser and to control a charging and/or a discharging of the at least one electrical energy storage device based on a determined a state of charge of the at least one electrical energy storage device.