The GRETA WebGIS “Geothermal potential - Val d'Aosta” identifies the closed-loop (CL) geothermal potential estimation below 2000m a.s.l., and the open-loop (OL) geothermal potential estimation of the Aosta town.
The CL geothermal potential is expressed as the annual sustainably energy exchangeable by a single 100m long borehole heat exchanger (MWh/y). The OL potential is based on the maximum yield extractable from a single well, indicated as technical volume flow. The different yield values were calculated according to two different doublet well distances: 10 and 100m. The OL geothermal power layers represent the maximum exchangeable power of a single well doublet. It is based on the aforementioned yield, and calculated according to a groundwater temperature drop of 5°C. The OL geothermal potential represents the annual amount of energy extractable for a 2000 hours full load heating period, and is expressed in Megawatt-hours.
The other layers available were used for the geothermal potential estimation.
Further information about this study can be found in Greta Deliverable 4.2.1.
Last update: November 15th 2018