Sunlight is captured and converted into electricity through photovoltaic panels, having a number of applications: heating, lighting or, curiously enough, cooling systems.

The force of the wind is captured by the large blades of wind turbines. Their movement generates energy which in turn is transformed into the electricity we use every day.

Water is stored in dams that, when discharged, move turbines at high speed. Like wind power, the movement of these turbines generates energy that is converted into electricity.

Hydrogen is the simplest element in the universe, and also the most abundant, but it does not exist in isolation on our Planet. Therefore, it has to be produced (from algae and bacteria), or collected (in gasoline, natural gas, water, etc.) to be able to be used as fuel.

Geothermal energy is produced in power plants that pick up the heat that is on or inside the Earth and transform it into electricity.

Oceans produce thermal and mechanical energy. Thermal energy is based on systems that use the temperature difference between the deep (cooler) waters and (hotter) ocean surfaces to make a motor move and produce electricity. The mechanical energy is collected from the movement of the tides (from the high tide to the low tide and vice versa) and from the movement of the waves. The higher the tides and the waves, the more energy you collect.

There are several ways of generating electricity from biomass, from the combustion of organic matter (from animals and plants), to the capture of gases produced by decomposition.