Providing a detailed understanding of why heat and electricity energy storage technologies have developed so rapidly, _Future Grid-Scale Energy Storage Solutions: Mechanical and Chemical Technologies and Principles_ presents the required fundamentals for techno-economic and environmental analysis of various grid-scale energy storage technologies. Through a consistent framework, each chapter outlines state-of-the-art advances, benefits and challenges, energy and exergy analyses models of these technologies, as well as an elaboration on their performance under dynamic and off-design operating conditions. Chapters include a case study analysis section, giving a detailed understanding of the systems’ thermodynamics and economic and environmental performance in real operational conditions, and wrap-up with a discussion of the future prospects of these technologies from commercial and research perspectives. This book is a highly beneficial reference for researchers and scientists dealing with grid-scale energy storage systems, as a single comprehensive book providing the information and fundamentals required to do modeling, analysis, and/or feasibility studies of such systems. * Features all the major mechanical and chemical energy storage systems, including electricity and thermal energy storage methods * Includes step-by-step energy and exergy modeling, including off-design performance modeling * Provides future perspectives for technologies, describing how they will contribute to the future smart energy systems