A biofuel is a fuel that is created through contemporary biological progressions, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of relic fuels, such as coal and petroleum, from primeval biological matter.

Renewable energy is energy that is collected from natural sources that replenish themselves over short periods of time, renewable energy resources exist over wide geographical areas. Rapid deployment of renewable energy and energy efficiency is resulting in significant energy security, climate change mitigation, and economic benefits. While many renewable energy projects are large-scale, renewable technologies are also suited to rural and remote areas and developing countries, where energy is often crucial in human development.

Bioenergy is Green energy created from natural, Biological Sources. These sources can be any form of organic matter that stores sunshine as Chemical energy. Numerous natural sources, such as plants, animals, and their byproducts, can be valuable resources. Modern knowledge even makes landfills or waste zones potential Bioenergy resources.

Some ways in which Environment sustainable energy has been defined are: "Effectively, the provision of energy such that it meets the needs of the present without compromising the ability of future generations to meet their own needs. ... Environment Sustainable Energy has two key components: renewable energy and energy efficiency."

Energy recycling is the recovery of energy that would normally be wasted in industrial processes by flaring, exhausting to the atmosphere or operating low-efficiency equipment, and converting it into electricity or thermal energy (steam).

Biodiesel is a different fuel similar to conventional or 'fossil' diesel. Biodiesel can be produced from straight vegetable oil, animal oil or fats, tallow, and waste cooking oil. The process used to convert these oils to Biodiesel is called transesterification. Biodiesel has reduced exhaust emissions related to petroleum diesel fuel.

Biomass is in the context of producing Bioenergy, it typically refers to agricultural byproducts and residues, woody waste products, and crops and microbes grown specifically for Petroleum. Biomass Technologies, A wide range of Technologies have been developed to use the Biomass Resource. These vary from direct combustion in Burner Systems, to the production of more Advanced biofuels, such as pyrolysis, through a variety of processing techniques. There are many different types of Biomass residues, wastes and energy crops available worldwide.