Geothermal localities in Greece
Greece has a great geothermal potential.
This potential has been confirmed and verified by
the discovery and exploration of new geothermal
fields during the past five years (1995-1999). During
this period the geothermal research and applications
were mainly related to low enthalpy fields.
The areas of research include Northern Greece (Thrace,
Macedonia), NW Greece (Epirus), Chios and Lesvos
islands (Aegean Sea). In Thrace, near the village
Aristino, a new geothermal field was discovered,
the temperature of which approaches 92oC. At the
area of Sappes (Thrace), some very promising fields
were identified through a series of exploration
and production wells. Very interesting fields were
also discovered in Central Macedonia (Sani and Neo
Ryssio district). In NW Greece (Sykies, near Arta,
Epirus) the exploration wells brought to light another
geothermal field whose temperature is 48ºC. Finally,
in Chios Island the recently discovered geothermal
field gave temperatures up to 90ºC.
As is already known (Fytikas 1988;
Fytikas et al, 1995 and 1999; Chiotis et al, 1990)
there are two high enthalpy geothermal fields in
Greece, namely Milos and Nisyros, where seven deep
wells identified temperatures of 320ºC and 350ºC
respectively. In addition, low enthalpy (T<100ºC)
geothermal fields abound in Greece, mainly in the
east and north parts of the country, as well as
in many Aegean islands. Present data yield a low
enthalpy potential exceeding 400 MWt proven and
800 MWt probable.
In 1995 geothermal applications were
limited to spas and greenhouses. Greece is rich
in geothermal waters, since the greatest part of
the country is situated on a geodynamically very
active area.
Even in Western Greece, which is the least favorable
territory in terms of geothermics, and particularly
in the areas of Antirrio and Sykies, promising data
have been acquired.
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>> Geothermal Exploration and Development
Activities in Greece During 1995-1999
