This latest volume includes contributions on the latest advances in energy research. Chapters include an overview of the production and recovery advancements of coal bed methane (CBM) reservoirs; an overview on the advancements in numerical and experimental studies of natural gas hydrate reservoirs; a discussion on the present state of the art of geothermal desalination, principles of operation for various desalination processes, and their applications and case studies around the world; an examination of ionic liquid applications as innovative electrolytes for fuel cells; a comparative study of the energy efficiency of a conventional ventilating and air conditioning (VAC) systems with three configurations; an assessment of desiccant assisted exergy recovery in airconditioning systems; a technical and economic assessment of the Homerpro environment simulations; and a study of an online in situ method for the monitoring of supercapacitor aging.