Biogas is an important constituent in the energy supply system and considered one of the top alternative energy sources. It is used as fuel for electricity production, heat, steam and vehicles.

Biogas units could be constructed as a treatment facility on the farms, battery farms, distilling plants, sugar factories, or a meat-packing plants. Utilizing waste production into biogas, the rendering plant could be replaced by a biogas plant.

Denmark is a leader in the production and usage of biogas, where it makes up about 18% of the total energy supply. Germany achieved the highest figures of installed biogas units, totaling 8000. About half of the battery farms are heated with biogas in Western Europe.

The most widespread source of biogas production is landfill gas or refuse gas (49.2%); plant crops are the other most frequently used crude source. Fifteen percent of biogas is produced by treatment facilities in the EU.

Reduction of greenhouse gas emissions and significant contributions to the environment increase the efficiency and potential of biogas. Research shows the benefits of this alternative fuel provide emissions reduction of 15 mln tonnes CO2e.