| Title | Geothermal Energy Use - Country Update Report for Bosnia and Herzegovina |
|---|---|
| Authors | Samardži?, N; Hrvatovi?, H |
| Year | 2016 |
| Conference | European Geothermal Congress |
| Keywords | geothermal resources, strategy, legislation, direct heat use, heat pumps, development, Bosnia and Herzegovina (B&H) |
| Abstract | In Bosnia and Herzegovina is in use geothermal energy obtained only from hydrogeothermal systems and from shallow horizons by using geothermal heat pumps (GSHP). Total proved power of 87 deposits with thermal and thermomineral waters is 251 MWth and energy 3,965.47 TJ/yr and possible power is ca 795 MWth with reference to 10°C with energy of 12,539.33 TJ/yr (Miošić et al., 2010). Currently geothermal direct heat use is about 23 MWth that shows a very low level of utilization of geothermal energy compared to its available capacities. Traditionally, the country’s geothermal energy production was used for direct heat supply (21 localities), with most of the thermal and thermomineral waters used in spas and recreation centres (18 localities). Individual space heating with heat exchangers is present at 6 localities. Geothermal heat pumps that use thermal water deep geothermal horizons are installed in four spas (Fojnica FB-2, Višegrad, Gata and Laktaši) where is energy used about 19 GWhth/yr. Heating of buildings by using geothermal heat pumps that use geothermal energy shallow horizons is increasing in the last 5 years. It is estimated that there are 150 buildings in B&H, which are heated by heat pumps. There is no production of electricity from geothermal sources in B&H. The usage of thermal and thermomineral waters in the period 2013-2015 has remained at almost the same level as in the period 2009-2013 while investigation have little higher level. During this period two exploitable wells were performed (in the area of Lukavac and Prnjavor) with total depth of about 225 m and 9 exploration drillholes in area Doboj (Ševarlije and Boljanić) with total depth of over 1.500 m. Well in Lukavac (southern margin of the Pannonian Basin) was performed to the depth of 170 m; its characteristics are artesian outflow Q=1.5 l/s, water temperature t=14 °C and mineralization M=1.9 g/l. The drillhole is made for the purpose of heating one private house. Second well was done for the purpose of water-supply at locality Kokori - Prnjavor (The Dinaride Ophiolite Zone) to the depth of 54 m, with artesian outflow Q=2.6 l/s, water temperature t=20.7°C, pH=8.45 and conductivity EC= 485 μS/cm (Ivanković and Begović, 2015). New investigations of geothermal potential in Doboj area (The Sava-Vardar Zone) have included 5 drillholes in Ševarlije and 4 drillholes in Boljanić with individual depths 26 – 430 m. The deepest drillhole was performed in Boljanić to the depth of 430 m at which the resulting with yield Q > 10 l/s and water temperature 33 ° C. Drilling a new well (2.800 m) for hydrocarbons at locality near Ob-1 - Obudovac (Pannonian Basin), is carried out by Jadran-Naftagas, joint companies the Oil Industry of Serbia (NIS) and the Russian company Zarubežnjeft in 2013. The research results are not yet available. |