Renewable or regenerative energy – is the energy from sources that, according to human scale, are inexhaustible. The basic principle of the use of renewable energy consists in extracted from it constantly occurring in the environment and processes providing for the technical application. Renewable energy comes from natural resources such as sunlight, water flows, wind, tides and geothermal heat, which are renewable.
Renewable energy resources exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries. Rapid deployment of renewable energy and energy efficiency is resulting in significant energy security, climate change mitigation, and economic benefits.