Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). About 16% of global final energy consumption comes from renewables, with 10% coming from traditional biomass, which is mainly used for heating, and 3.4% from hydroelectricity Tipos de energia. Biomass energy costs less than energy from fossil fuels like oil and natural gas. Widely available biomass fuels include wood chips, agricultural wastes, and all kinds of residual products What is biomass? Biomass means “natural material.” When biomass energy is burned, it releases heat, just like the wood logs in your campfire. Biomass energy uses natural materials like trees and plants to make electricity. It can also mean waste products like trash. It is the second-most common form of renewable energy we use, providing enough electricity to power millions of homes. Why is biomass emerging as a leading renewable energy? For the past couple of years solar and wind solutions have been the leading choice of renewable energy due to the huge tax benefits of government-backed schemes. The government have changed such schemes recently because a large number of farmers began exploiting such schemes to earn extensive profits by covering their land with wind turbines and solar panels. New government-backed schemes lean towards encouraging people to invest in biomass boiler systems. Another reason biomass has become so popular because it is a very clean, renewable source for energy and fuel. There are many advantages to the use of biomass. Not only is it a cheap source, but it also does not add any CO2 to the atmosphere. Biomass is a sensible idea as it uses trash and waste products in a way that helps the environment. It also helps keep the sources from the earth that are not renewable available for future generations. However it does create a small trace of greenhouse gases when it is made More. It also may take time to find enough sources to convert into biomass energy and fuels. Reduced use of landfills A portion of landfills consists of woody biomass from construction, lumber mill activities, disposal of wooden palettes, etc. Wastes from food processing, paper industries and household garbage also contain organic matter that could be converted to energy. Using these materials to create energy as biomass means less landfill space is needed therefore protecting our environment further. How is electricity created with biomass Direct combustion is the simplest and most common method of capturing the energy contained within biomass. Usually these facilities (boilers) produce steam to use either within an industrial process, or to produce electricity directly. They can also produce heat, which is then captured for one purpose or another. Direct combustion technology is very similar to that used for coal. Biomass and coal can be handled and burned in essentially the same fashion because coal is simply fossilized biomass heated and compressed over millions of years. The process which coal undergoes as it is heated and compressed deep within the earth adds elements like sulfur and mercury to the coal - elements which produce noxious emissions when burned. Since biomass does not contain these dangerous elements, combusting it produces no dangerous emissions.