The "scenario with additional measures" starts from the assumptions that the Republic of Serbia will reach its national goal of a 27% share of renewable energy sources in gross final consumption and a 10% share of biofuels in transport in 2020 and implement energy efficiency measures to achieve a 9% reduction in final energy consumption compared to the previous scenario. This scenario includes the implementation of measures with the aim to reduce final energy consumption in the building sector, the commercial and public service sector, and the industrial and transport sector. Consequently, the relative reduction in energy consumption (reduction per unit of GDP) in the manufacturing and service sectors will be accomplished. As a result, energy efficiency will become a "new energy source"