Renewable fuels are energy sources that are produced from resources that can be replenished. Examples include hydrogen fuel and biofuels. They are distinct from other non-renewable energy sources, such as natural gas, petroleum, LPG, or other fossil fuels. These sources could also include nuclear fuels. There are many initiatives currently underway to develop and produce renewable fuels.
Cellulosic biofuels
Cellulosic Biofuels are renewable and sustainable energy sources made from biomass. This source of energy has tremendous potential to help the US achieve energy independence. The National Renewable Energy Laboratory, based in Golden Colorado, works on cellulosic ethanol from 1995 to date. The National Bioenergy Center is managed by the company. It has developed cellulosicethanol to replace gasoline.
Biodiesel
Biodiesel can be made from renewable resources. It is a cleaner-burning alternative to petroleum diesel. It is also less polluting than petroleum diesel and biodegradable (as quickly as sugar). It is a good choice for both the environment and the economy. Biodiesel is made from sustainable crops. Some projects even transform kitchen waste into biodiesel.
Bioethanol
Bioethanol, a renewable fuel, can be produced by fermenting sugars and oxygen. The process is carried out by yeasts, which are facultative anaerobes that live in sugar-rich environments. You can obtain yeasts for bioethanol production from culture collections or from their natural environments. The best yeasts for bioethanol production are those that are naturally grown. They are more efficient at converting sugars and alcohol.
Biomethane
Although the biomethane renewable fuels industry is very small, there is great potential for growth. It can be used on existing infrastructure. Policies to reduce carbon emissions are crucial for the growth and sustainability of the biomethane business.
Bio-diesel
Bio-diesel can be described as an alternative fuel, which is made from renewable resources. It is preferred by the U.S. government as it is used in the construction and manufacturing industries. As diesel-powered vehicles decline in demand, this renewable fuel will see significant growth. Diesel-powered cars make up less than 1% of passenger car sales in the U.S.
Bio-ethanol
Ethanol is a renewable fuel produced by the fermentation of carbon-based feedstocks. These feedstocks are renewable because they make use of sunlight for energy and then return all the nutrients to the ground. These feedstocks include sugarcane, bagasse, sugar beets, and cellulose wastes.