provides a comprehensive analysis of the various technologies used to store electrical energy on both a small and large scale. Although expensive to implement, energy storage plants can offer significant benefits for the generation, distribution and use of electrical power. This is particularly important in renewable energy, which is intermittent in its supply. This book provides coverage of major technologies, such as sections on Pumped Storage Hydropower, Compressed-Air Energy Storage, Large Scale Batteries and Superconducting Magnetic Energy Storage, each of which is presented with discussions of their operation, performance, efficiency and the costs associated with implementation and management.