In simple terms Renewable Energy, as its name implies, is energy that is renewable—it is naturally replenished and is the energy that is derived from nature itself like water, sunlight, wind etc.
Most of the energy used before the start of the Industrial Revolution was renewable energy. The beginning of the Industrial Revolution led to an increase in the demand for coal, and as a result, it replaced most of the “bio mass” used by humanity. With the discovery of oil, renewable energy was being rapidly replaced by non-renewable energy, as they were able to generate more energy at a lower cost.
However, even during the Industrial Revolution it was recognized that these energy sources were finite. Scientist started developing