Abstract
In conjunction with worldwide decreasing of energy sources and increasing of electric power consumption, the environment problematic is getting into spotlight more and more presently. Due to these facts, it is necessary to search for new alternatives and new solutions of energy power generation as there are a lot of problems with this technology nowadays. This work review on how 10 energy – generating systems work and provides clear technology behind their working principles. Each illustration explained the technology behind central components and shows each system in action starting with how power is harnessed from water and wind.