Energy storage is currently gaining more importance in the context of energy transition paradigm. Indeed, it is expected to play a key role as an enabling technology in the process of lowering the carbon foot print of the electrical system, particularly with renewable energies on the rise and the event of the plug-in Hybrid and Electric Vehicles (PHEV). Storage has always been used in the power industry but at a limited scale as it is considered to be non-competitive for most grid applications. However, the new emphasis put on energy storage in the context of this new energy paradigm has triggered new efforts in research and development on storage technologies. Most of research roadmaps have pointed out that the energy storage will play a major role in the future with breakthrough capabilities. Hence, several new technologies have emerged in recent years. In addition, large in situ pilot projects for demonstration purposes have recently been launched to demonstrate on real scale the effectiveness of these new technologies in terms of performances as well as in terms of system benefits, business models and best practices. The panel will be dedicated to the emerging energy technology storage. The presentations will cover technology, economy, system integration and feedback experience on some real scale pilot projects for grid applications.