THE IMPORTANCE OF RENEWABLE ENERGIES.
Sustainable energy is energy that can be used in the present without compromising the energy needs of future generations. It is very important for the environment and for human development, as it contributes to reducing greenhouse gas emissions, improving energy efficiency, promoting the independence and competitiveness of countries, and creating jobs and wealth. Examples of sustainable energy include solar, wind, geothermal, hydropower, and bioenergy. These energy sources are clean, inexhaustible and can be adapted to the needs of each place. In addition, sustainable energy implies a change of model in the way energy is produced, distributed and consumed, taking advantage of new technologies and innovative solutions. For example, smart cities, smart meters, LED lighting, electric mobility, sustainable architecture, and the use of big data are some of the applications that can improve the energy sustainability of urban environments.