The Journal of Energy Storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide.The journal offers a single, peer-reviewed, multi-disciplinary platform for scientists and engineers in academia, research institutions, government agencies and industry. The journal is also of interest to decision makers and technical, economic and policy advisers in these organisations.The Journal of Energy Storage welcomes original research papers, reviews and short communications. Topics include, but are not limited to the following:• Science, technology and applications of electrochemical, chemical, mechanical, electrical and thermal energy storage • Engineering, control, optimization, numerical and modelling aspects of energy storage systems • Demand and management of intermittency in large scale low-carbon power generation involving renewable energy sources using energy storage systems and other competing flexibility options such as flexible power plants, demand side management in households and industry, combined heat and power, or grid extensions • Applications, load profiles and requirements of storage technologies in grid-scale electrical storage, electric vehicle transportation, traction applications, off-grid systems, uninterruptible power supplies, and portable electronic applications • Management and control of large quantities of distributed storage systems as virtual large scale storage systems, including vehicle-to-grid, energy storage integrated with buildings, and multi-purpose and hybrid storage systems • Testing, test procedures, evaluation, lessons learned, life cycle costs, life cycle assessment, and safety of energy storage systems • Economic, policy and regulatory aspects, markets, market models, and market introduction concepts of energy storage systems.This journal welcomes contributions that support and advance the UN's sustainable development goals, in particular SDG 7 (Affordable and clean energy)