Difference of powers

Solar  energy: It is the source of almost all the energy that we use . It is free and clean .Its energy source is the Sun . 

Biomass energy: It is the energy accumulated in the living beings .  All organic waste are burned to obtain thermal energy.

Wind energy: It is the energy due to the movement of the air spinning blades of the windmills. These, through a system of gears multiplied enormously the speed of an electric generator.

Geothermal energy: In the basement of some areas there are pockets of accumulated heat from the interior of the Earth. This heat is harnessed by placing pipes with cold water coming into contact with the hot focus to higher temperature.

Hydropower energy : It is energy that pose the water reservoir in the swamps to be at a high altitude with respect to the base of the dam. low water at an enormous speed by moving the turbines and generators through, produces electric power. 

 Fossil fuels : The coal , the natural gas and the fossil fuel oil . They are solar origin. They have been formed from ferns and marine plankton of million years which grew thanks to the fotosintisis. They are the source of energy most used. They are very contaminants.

Nuclear energy : In nuclear power plants, the nuclei of atoms of uranium serompen releasing heat. With that energy, water is transformed into steam at high pressure. This steam s which moves the turbines and alternators to produce electricity.