Trnava Sereď

Member state SLOVAKIA
Case study Sereď
Description The County of Trnava has the highest amount of thermal energy used in Slovakia. The geothermal district heating supplies 3760 appartments, i.e. 10,8 MWth. It saves 600 000 m3 of gas each year.
Region>City>location Trnava>Sereď
Owner MBP Sered company
Operator MBP Sered company
Installed capacity
( MWth)
10,833 (60% covered by geothermal energy)
Installed geothermal capacity 0.6
DH length
Inhabitants connected Town has 16000 inhabitants, 3760 appartments are supplied by GeoDH
Design of the DH Primary two-pipe distribution network is connected to pressure dependent heat exchanger stations installed directly in supplied buildings (17 apartment buildings, 4 public buildings) with 960 apartments. Geothermal energy is used for pre-heating (66°C production temperature) and it is supported by natural gas boiler.
 Operating Temperature of the DH 65/45°C
Temperature of the geothermal ressource
(production – injection)
Production: 66°C
Geothermal flow
8 l/s
Heat Pump
if any
(power in Mwe and COP)
Dates of begining and end of construction 2010-2011
Planing of the operation
(from pre-studies to full completion)
Investement for
geothermal well
1.6 M€
(banks, funds, PPP…)
Comparison with fossil energies  approx. 600,000 m3 of natural gas annually saved / 1,200 tons of CO2 saved annually

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