Renewable energies, as opposed to fossil fuels, aim to meet the energy needs of people by respecting the planet and safeguarding its resources. Renewable energies are energies that, as their name suggests, are renewed on the human time scale.
Solar and wind energy are indestructible energies that have no limit outside meteorology. Geothermal energy and tidal energy are energies that operate continuously.
Other renewable energies are not permanent but regenerate very quickly like wood. Biomass is considered renewable energy provided that the harvest by humans is respectful of nature and renewal times.
For energy, there are currently three paths, fossil fuels, nuclear energy and renewable energies. The first take millions of years to form, there is currently a looting of the planet, the second is almost unlimited but presents very important risks for the planet and the human being. Only renewable energies represent a sustainable and ecological solution.
Promoting renewable energies means promoting the planet and reducing CO2 emissions. However, it is necessary to pay attention to the gray energies, the energies used to build what will capture and use the renewable energy as well as its energy cost during the recycling.