Contribution of renewable energy sources into the country's primary energy balance during the period 1990-2016 is increasing. During the period 1990-2016 primary energy supply from renewable sources increased by 4.6 times with an average annual growth of 6%. Lithuania has undertaken, according to Directive of the European Parliament and of the Council No 2009/28/EC on the promotion of the use of energy from renewable sources, to increase the renewable sources share in the final national energy consumption up to 23% by 2020. Lithuania has already reached the 23% target: in 2016, the share of renewable energy sources in the total energy balance of the country exceeded one fifth, accounting for 25.46%. Currently the main domestic energy resource is solid biomass, the second largest renewable energy source is wind energy.