expand Question: What are the renewable energy sources?
Renewable energy (sources) or RES capture their energy from existing flows of energy, from on-going natural processes, such as sunshine, wind, flowing water, biological processes, and geothermal heat flows. The most common definition is that the renewable energy is from an energy resource that is replaced rapidly by a natural process such as power generated from the sun or from the wind. Renewable Energies are: solar energy, wind energy, hydraulic energy, geothermal energy, tidal power and biomass. In the case of biomass, we can consider it as an energy source unless the time to regenerate it is compatible with its usage time.