GRETA

Near-surface Geothermal Resources in the Territory of the Alpine Space

Cerkno Municipality (Slovenia)

This first case study presents the Municipality of Cerkno, which is located in the western part of Slovenia on the area of 132 km² , is situated in the subalpine valley at an altitude of 324 m and is influenced by both the continental and Mediterranean climate. This Municipality has about 5,040 inhabitants, from which about 2,000 lives in the town Cerkno, on which whole area gravitates. The rest of population lives in villages in the difficult to reach mountainous area. An important role in the area represents tourism, which is primarily linked to sports in nature. The average daily mean temperature ranges from 17.8 °C in the summer to 0.1°C in the winter.

The Municipality will support the integration of near-surface geothermal resources activities to its spatial plan and Local Energy action plan.

An important part of the case study is also to include the hotel Cerkno with neighboring public buildings;

the tourist hut of the ski resort and feasibility of absorber elements in the planned tunnels for a further long-term development of geothermal potential in the municipality of Cerkno are foreseen in this study.

​Figure 1. Study case of Municipality Cerkno, Slovenia

Elevation:
1,300
 m above seal level
Mean annual T:
6
 °C
Heating design temperature T:
-13
 °C
Heating season:
330
 days
Temperature deficit to 20°C:
4,700
 Kdays
Solar energy to horiz. surface:
1
 kWh/m²

​Figure 2. Tourist hut «Alpska Perla» of the ski resort

Feasibility of substitution of heating oil by geothermal energy.

Elevation:
1,300
 m above seal level
Mean annual T:
6
 °C
Heating design temperature T:
-13
 °C
Heating season:
330
 days
Temperature deficit to 20°C:
4,700
 Kdays
Solar energy to horiz. surface:
1,209
 kWh/m²

​Figure 3. Hotel Cerkno

Feasibility of energy surpluses transmissions from geothermal heating to neighboring public buildings.