Topics covered are fundamentals of the renewable and sustainable energy systems technology, thermo-economic analysis and the current research trends in improving the energy production from terrestrial water and air flows, solar irradiation, nuclear fission and controlled plasma for fusion, energy conversion alternatives such as hydrogen fuel cells, small and large scale energy storage such as electric batteries, thermal and compressed-gas, and the current research on the electric transmission grids and an introductory economic analysis of the domestic electric use in the future.