Czech Republic - Direct Uses




Spas (estimated)



 geothermal heat pumps (estimated)





Total thermal installed capacity in MWt


Direct use in TJ/year


Direct use in GWh/year


Capacity factor



Country Update: Thermal waters are used in spas, wellness centers and swimming pools. New thermal swimming pools are being constructed at many places. The most successful project using thermal water for balneological purposes is located at Poshlavky/Mosov in the southeastern part of the country in the Northern Vienna Basin. The most widespread use of geothermal is linked to the installation of various types of geothermal heat pumps for domestic (e. g. houses) and public use (e.g. education and administrative facilities). By the end of 2012, 46,000 heat pumps have been installed in the country of which approximately 18,000 are geothermal. All heat pumps are used mainly for domestic use (87%) providing heat capacity of 460 MWt and for public use (13%) which an installed heat capacity of 158 MWt. Larger geothermal heat pump installations are at Decin (3.28 MWt), AZ Tower in Brno (0.28 MWt) and Jeremenko water pit (0.091 MWt). Thermal water from a Svornost mine pit with considerable radon content is used for the Jachymov Spa. The three historical spas that are world-famous are Jansk Lazne with considerable radioactive elements; Karlovy Vary (Karlsbad) near Prague where the water is also used for drinking therapy; and Teplice, also with a high contact of radon. Recently developed spas include Vlke Losiny, Pasohlavky, Benesov nad Ploucnici, and Brna. No data are provided on spa and bathing energy use. Geothermal heat pumps are estimated at 300 MWt. Assuming an average COP of 3.5 and 2,200 full load operating hours per year, the annual energy use is estimated at 1,700 TJ/yr. Based on data from WGC2010, the estimated capacity for spas is 4.5 MWt with an annual energy use of 90TJ/yr. The total for the country is then 304.5 MWt and 1,790 TJ/yr (Lund, 1990 and Jirakova, et al., 2015).

Taken from: John W. Lund and Tonya L. Boyd
Published in Direct Utilization of Geothermal Energy 2015 Worldwide Review

Total thermal installed capacity in MWt:151.5
Direct use in TJ/year922
Direct use in GWh/year256.1
Capacity factor0.19

No country update paper was received for this country, thus the data from WGC2005 will have to be utilized, assuming no changes (Myslil et al., 2005).

The direct use of thermal water in spas and swimming pools dates back several hundred years. There are 11 major spas and thermal springs in the Czech Republic, the most famous being Karlovy Vary (Karlsbad) and Marianske Laznĕ (Marienbad).

More than 10,000 geothermal heat pumps have been installed, at an average capacity of 20 kW (a report from 2009 (EurObserv’ER, 2009), reports in 2008, 9,168 units installed with a capacity of 147.0 MWt), thus the geothermal heat pump numbers will be reduced to the 2008 figure. Using a COP of 3.5 and 2,200 full load operating hours per year, the annual energy use is then estimated at 832 TJ/yr. The estimated capacity for the spas is 4.5 MWt, with an energy use of 90 TJ/yr (Lund, 1990).

The total for the country is 151.5 MWt and 922 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