Under Grand Agreement Preparation. The INTERRFACE project will design, develop and exploit an Interoperable pan-European Grid Services Architecture (IEGSA) to act as the interface between the power system (TSO and DSO) and the customers and allow the seamless and coordinated operation of all stakeholders to use and procure common services. INTERRFACE will demonstrate for the first time in the power sector the added value of sharing data among all?participants in the electricity system value chain (customers, grids, market), from local, regional to EU level. It will also enable TSOs, DSOs and customers to coordinate their efforts to maximise the potential of distributed energy resources (DERs), demand aggregators and grid assets, so as to procure energy services in a cost-efficient way and create consumer benefits. The consortium consists of 42 partners from many European countries, including TSOs, DSOs, Regulator, Associations, Market Operators, Aggregators, ESCOs, Universities, etc. INTERRFACE will prove its concept through large-scale real-life demonstrators.