This course will introduce the basics and current trends of the electric power system and electric power industry. Students will learn methods to mathematically analyze different renewable electric energy systems and evaluate their performance, economics, and sustainability. Specifically, key basics of wind and solar energy technologies, and their power grid integration issues will be extensively discussed. Opensource software will also be introduced to the class to assist their study, such as PVWatt from NREL. Other alternate energy sources, such as CHP, Microturbine, biomass, PHEV, Microgrid, etc. will also be introduced. After finishing this course, students are expected to be able to conduct a critical analysis of national and global energy systems.