This course is an introduction to renewable energies and their impact on development and future needs of the planet Earth. Mankind is facing serious natural disasters and events caused by global warming and climate change. These phenomena are related to the population growth and the increase in fossil fuels burning, particularly after the industrial revolution. There is a general concern and interest of societies to change gradually toward the implementation of renewable energies to meet human needs in the future. This course will be focused on Costa Rica's potential for renewable energies.