Renewable energy is energy that is generated from natural processes that are continuously replenished. This includes sunlight, geothermal heat, wind energy, tides, water, and various forms of biomass. This energy cannot be exhausted and is constantly renewed. Biomass, is a renewable organic matter, and can include biological material derived from living, or recently living organisms, such as wood, waste, and alcohol fuels.

§  Solar Energy

§  Wind Energy

§  Energy efficiency

§  Energy-from-waste

§  Renewable chemicals