COMPARATIVE OF THE DISTRICT HEATING SYSTEM OF COUNTRIES IN TRANSITION

<p style="text-align: justify;">During the second half of the last century in Europe, district heating systems (DHS) have been built intensively to supply cities and settlements with heat energy.<br />Taking into account that energy prices at that time were low, there was an economic justification for the construction of expensive infrastructural distribution systems. After the first oil shock of the seventies of the last century, there was a review of the consumption of petroleum products (mainly oil) as fuel in the heat sources of the DHS.<br />The European Union, as well as Bosnia and Herzegovina, in the heat energy sector has long-term goals that are aimed at increasing the DHS to 30% by 2030, or 50% by 2050, in that of the current DHS of 12%. The present (current) state of the district heating system in Bosnia and Herzegovina (Republic of Srpska and Federation BiH) is presented. The paper covers the technical, technological, supply, distribution, environmental, economic and market parameters of DHS in BiH. The institutional and legislative framework is presented in the previous paper, the comparison of parameters was made in relation to the cities of other countries in transition. The main conclusions are that in the cities of BiH (in the RS and FBiH) the small utilization of the district heating system is outdated, Investing in new ones requires significant investment funds, there are small movements in the application and introduction of renewable energy sources such as biomass, and in this connection, there is a small impact on CO2 emission reductions, large losses in heat distribution have been identified, and a market situation that is distinguished still high energy prices and pricing of heat service dominantlly is based on the surface of the space.</p>