The development of the Smart Energy Networks is a key priority to facilitate the transition to a more sustainable energy supply in Europe. Li-ion battery is a very promising technology for improving the penetration of renewable energy sources (RES) in the energy mix and enabling a better management of energy in the European grid. The overall objective of the STABALID project is to facilitate the deployment of safe stationary batteries with energy content over 1 MWh and cell size larger than 10 Ah. To this end, the consortium will develop a new testing procedure for stationary batteries that will become a new international standard document for this kind of energy system. The safety testing procedure will be developed based on a detailed risk analysis and the review of international existing standards (including those in preparation) applicable for stationary batteries, and taking into account the on-going research work on Li-ion batteries and on Electric Vehicle charging at EU (e.g. HELIOS, MERGE, SOL-ION projects) and national levels. The new standard will be developed to guarantee safety during the whole life cycle of the batteries. In addition, the consortium will propose a strategy and roadmap to establish a harmonized regulatory framework in order to allow a safe implementation, operation and end of life of large Li-ion batteries for grid applications. The project and in particular the testing procedure will be developed in close cooperation with Japan thanks to collaboration with selected projects financed by METI and NEDO. STABALID project is technically led by a world leading manufacturing company, SAFT, and involves a utility company as representative of end-users, EDP, as well as reference organizations for safety inspection, testing, certification, and for integrated risk management. Thus ,the consortium ambition is to have the new standard adopted during the course of the project using established connection with IEC committees.