[en] While energy storage is at the heart of current challenges related to energy transition, and more particularly battery-based energy storage, the authors first shows that this battery-based storage is a major vector of energy transition. They mention the different solutions associated with a flexibility of production and consumption. They propose an overview of the different storage technologies associated with the different types of energy (electrochemical, chemical, electric, thermal, kinetic of potential mechanical). Then, they discuss the various characteristics and technologies of battery-based storage. They outline the usefulness of this storage for the different actors (producer, network manager, market operator, industrial, user). They discuss economic, technical, organisational, administrative blocking points to be overcome for a massive deployment of battery-based storage in France. However, they notice that the context is rather favourable in France, and propose an overview of recent initiatives in France (political will, regulatory evolution, experimentations, investments, innovating start-ups, panel of actors). In the next part, they discuss challenges and perspectives for the French sector on the national and international markets, and propose a road-map to make leaders emerge

[en] Producing, consuming and sharing electricity is today an emerging trend of the energy mix transition. Self-consumption is the main topic of 2017, even if still limited today, it aims to extend in the coming years especially if the appropriate conditions are in place. This second edition of the national colloquium on self-consumption stresses on two aspects will extend in a near future: collective self-consumption and stationary and mobile power storage. The colloquium is organised in 4 sessions dealing with: 1 - The market of individual self-consumption, economical and contractual models; 2 - Regulatory and economic framework of collective self-consumption: impact on positive-energy buildings and on the fight against fuel poverty; 3 - Digitalized self-consumption as a solution to reach operational efficiency: issues for the grid from the building to the district scale; 4 - Photovoltaic self-consumption, stationary storage and electro-mobility: impact of batteries competition on energy decentralisation. This document brings together the different presentations (slides) given at the colloquium