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Total thermal installed capacity in MWt:
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104.17
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Direct use in TJ/year
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1,136.39
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Direct use in GWh/year
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315.7
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Capacity factor
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0.35
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Geothermal direct-use is implemented at 28 locations in the country and discontinued at three locations due to economics. This includes four new sites that have come on line and which are located in the northeaster part of the country.
There are 20 thermal spas and health resorts, and five recreation centers (four of which are part of a hotel complex). Space heating is implemented at 13 locations, mainly at thermal spas, with air conditioning (cooling) at one location.
There are two district heating projects, at Murska Sobota for about 300 dwellings and in Lendava where several building are heated in the downtown area. In Lendava there is also snow melting. There are a number of greenhouse locations, one growing flowers for the domestic market of 4.5 ha, one of 1 ha growing tomatoes and one of 1.4 ha growing orchids. The leather factor at Vrhnika is closed.
A total of about 3,440 heat pump units are installed in the country, about half open loop systems (47%) extracting 190 TJ/yr from shallow ground water, and the others are closed loop, mostly horizontal (49%)(159 TJ/yr), with 4% being vertical closed loop installations (30 TJ/yr). About 13 TJ/yr of heat is rejected to the ground in the cooling mode, presumably by vertical systems. Geothermal heat pumps are the largest direct-use in the country; however one of the obstacles to their use is the higher tariff imposed for electricity for these units.
The various uses include:
22.4 MWt and 306.23 TJ/yr for individual space heating;
3.29 MWt and 44 TJ/yr for district heating;
0.13 MWt and 2 TJ/yr for air conditioning (cooling);
13.6 MWt and 94.6 TJ/yr for greenhouse heating;
25.04 MWt; 310.56 TJ/yr for bathing and swimming;
49.71 MWt and 379 TJ/yr for geothermal heat pumps.
The total for the country is 104.17 MWt and 1,136.39 TJ/yr
Taken from the paper by John W. Lund, Derek H. Freeston, and Tonya L. Boyd: "Direct Utilization of Geothermal Energy 2010 Worldwide Review"; published in Proceedings of the World Geothermal Congress 2010, Bali, Indonesia, 25-29 April 2010