Undergraduate junior level students will become familiar with the use of fundamental physical concepts in energy systems as well as become well informed on the topics of energy. They thus learn about the energy usage in our everyday life; where we can obtain it from, and how we can transform it into useful forms; where/how we can use it, and distribute it; how much energy we get from wind and sun; how a solar photovoltaic system works and what are the basic physical principles of nuclear reactors. The target is mainly the science and applied science department students, for especially those aiming to plan a research/job career in energy related science and technology areas.