Member state HUNGARY-1
Case study Hódmező-vásárhely
Description Geothermal energy utilization in Hodmezovasarhely has decades of tradition. The first thermal well was drilled for balneology purpose in 1954. Another well was drilled for agriculture using in 1964. In 1967 a third well was drilled for a hospital : for therapeutic use and heating purposes. In 1993 the local government decided to develop an integrated geothermal district heating system. Around 2.800 flats ans 130 institutional consumers are provided with heating and hot water supply.
Region>City>location Southern Hungarian Plain
Owner municipality
Operator municipality
Installed capacity
( MWth)
Installed geothermal capacity 18,66 MWth
DH length
> 10000
Inhabitants connected 2725 flats plus 130 institutional consumer
Design of the DH 8 production, 2 injection wells were installed since 1967
subsurface and surface
technical schemes
Attached in the doc file
significant pictures if any Attached photo in the doc file
 Operating Temperature of the DH 80-87oC in the heating system 40-42oC of the household warm water
Temperature of the geothermal ressource
(production – injection)
90-105oC of the produced, 30-50 of the injected water
Geothermal flow
1200 liter/min/well
Heat Pump
if any
(power in Mwe and COP)
Production of heating and/or cooling 188500 GJ/y
Others uses
(drinking water, cascade uses…)
household warm water, balneology (thermal bath plus swimming pool)
Dates of begining and end of construction 1967-2013
Planing of the operation
(from pre-studies to full completion)
3 years/new installation (for example a new injection well)
Difficulties faced injection
Administrative permits water management operating permit
Cost of the produced MWh ~ 3.7 €/MWh (excluding investment costs)
Comparison with fossil energies  71.7% of gas price
Taxes no
Innovation if any 15 years re-injection into sandstone reservoir, cascade system

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