Biogas production through anaerobic digestion is considered as one of the most successful methods of dealing with increasing environmental pollution. Heat and electricity are produced by burning biogas in cogeneration plants. A wide variety of inputs can be used to produce biogas: livestock manure, crop residues, sewage sludge, household and catering organic waste and energy crops. Simultaneously the production of biogas from organic waste also addresses the matter of the disposal of waste products. Waste that would otherwise be considered unusable, has now found a second life in the production process of the biogas. Given that until 2020, the share of renewable energy in Latvia has to be increased, it can be expected that in the coming years the amount of biogas production and combustion plants will increase.