Renewable (Primary) Energy sources: It is defined as the sources that can be used again and again for the generation of electrical energy are called renewable.
Following are the some list of renewable energy sources:-
1. Solar Energy i) Photovoltaic Systems (Direct conversion to electricity) ii) Solar Thermal Power plant ( In direct conversion to electricity)
2. Wind Energy
3. Hydropower
4. Ocean Energy
i)Ocean Tidal Energy ii)Ocean Wave Energy iii)Ocean Thermal Energy
5. Bioenergy:- i) Biofuels (e.g. Bio-diesel, Ethanol) ii) Biomass (e.g. sugar cane bagasse, farming waste, forestry waste etc.) iii) Biogas (it is produced from any organic waste materials. It contains mixture of methane (50-65 % in volume) and carbon dioxide
6. Geothermal Energy
Geothermal Electricity Production
7. Fuel Cells