EASE-EERA Energy Storage Technology Development Roadmap 2017

The first joint EASE/EERA Technology Development Roadmap on energy storage1 was published in 2013 with the goal of identifying the most pressing technology development priorities for the European energy storage industry. Given the evolution and advancements in the energy storage sector - and, indeed, the energy sector as a whole - over the past several years, EASE and EERA have joined forces once more to draft a significant update to the 2013 roadmap. The roadmap is a joint effort between the European Association for Storage of Energy (EASE) and the Joint Programme on Energy Storage (JP ES) under the European Energy Research Alliance (EERA). Together, EASE and EERA members provide a strong foundation of industrial and research expertise, which allows for a deep and multifaceted insight into the European energy storage sector. This updated roadmap provides a comprehensive overview of the energy storage technologies being developed in Europe today, with a focus on stationary applications, and identifies the most pressing research, development and demonstration (RD&D) needs in the coming decades. Where applicable, energy storage for electro mobility is also considered in the technology sections. On this basis, the roadmap provides recommendations for research and development (R&D) policies and regulatory changes needed to support the development and large-scale deployment of energy storage technologies. The aim is to inform policymaking for research, innovation, and demonstration in the energy storage sector in order to further strengthen Europe's research and industrial competitiveness. More information about the methodology used to elaborate this roadmap is contained in Chapter 2. Chapter 3 lists the mission and objectives. Chapter 4 explains the European and global policy developments affecting the energy system in Europe and the role foreseen for energy storage. Chapter 5 describes the future needs for energy storage and, explains the key applications for the electrical system and for sector interfaces. This Chapter also provides an overview of the energy storage technologies, and outlines the European competences in energy storage. EASE and EERA consider that a wide range of energy storage technologies will be needed to address the challenges of the energy transition. Chapter 6, the bulk of this roadmap, therefore covers the five families of energy storage technologies in detail: chemical energy storage, electrochemical energy storage, electrical energy storage (including both supercapacitors and superconducting magnetic energy storage), mechanical energy storage (covering compressed air energy storage, flywheels, liquid air energy storage, and pumped hydro storage), and thermal energy storage (broken down into sensible heat storage, latent heat storage, and thermochemical heat storage). For each of these technologies, there is a description of their technical maturity, applications, R&D targets, an identification of gaps between the present status and these targets, a list of research priorities, and recommendations for research funding, infrastructures, and incentives.