Thermal, Mechanical, and Hybrid Chemical Energy Storage Systems provides unique and comprehensive guidelines on all non-battery energy storage technologies, including their technical and design details, applications, and how to make decisions and purchase them for commercial use.The book covers all short and long-term electric grid storage technologies that utilize heat or mechanical potential energy to store electricity, including their cycles, application, advantages and disadvantages, such as round-trip-efficiency, duration, cost and siting.Also discussed are hybrid technologies that utilize hydrogen as a storage medium aside from battery technology. Readers will gain substantial knowledge on all major mechanical, thermal and hybrid energy storage technologies, their market, operational challenges, benefits, design and application criteria.