Most of the energy we consume at our homes, comes from elsewhere and is mostly used as electrical energy and for heating or cooling. Innovative in this project is cross energy coupling (electrical energy and heat) with innovative way of electrical energy storage and heat storage. The energy neutral house can generate its own solar energy which can be stored in battery (different battery technologies are going to be combined such as salt water battery), connected electrical vehicle and heat. The researchers aim to develop an integral system for the intelligent and integrated control and implementation of hybrid energy storage technologies in the built environment. They are working on making the collective heat supply and the general energy consumption more sustainable – combining PV panels on the roof to heat water which can be stored in different devices which have various shelf lives for capturing heat for up to two weeks’ time. Energy is not only stored as heat but also in batteries in the house or even in your electric vehicle. Subsequently the researchers are developing ways to install the needed power electronics for this underground. This system of generating and storing energy will be managed through an intelligent management system that can switch between the various energy resources available at the house - combining stationary battery storage, reused batteries, electric vehicle charging, vehicle-to-grid technology, flexible heat pump and heat storage. 

To further the innovation hydrogen storage will be added, more ancillary services for the grid have to be developed with corresponding regulations and business case.