The GRETA project: the contribution of near-surface geothermal energy for the energetic self-sufficiency of Alpine regions

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Alessandro Casasso *
Bruno Piga
Rajandrea Sethi
Joerg Prestor
Simona Pestotnik
Magdalena Bottig
Gregor Goetzl
Pietro Zambelli
Valentina D'Alonzo
Roberto Vaccaro
Pietro Capodaglio
Marcela Olmedo
Alessandro Baietto
Charles Maragna
Fabian Böttcher
Kai Zoesseder
(*) Corresponding Author:
Alessandro Casasso | alessandro.casasso@polito.it

Abstract

The Alpine regions are deeply involved in the challenge set by climate change, which is a threat for their environment and for important economic activities such as tourism. The heating and cooling of buildings account for a major share of the total primary energy consumption in Europe, and hence the energy policies should focus on this sector to achieve the greenhouse gas reduction targets set by international agreements. Geothermal heat pump is one of the least carbon-intensive technologies for the heating and cooling of buildings. It exploits the heat stored within the ground, a local renewable energy source which is widely available across the Alpine territory. Nevertheless, it has been little considered by European policies and cooperation projects. GRETA (near-surface Geothermal REsources in the Territory of the Alpine space) is a cooperation project funded by the EU INTERREG-Alpine Space program, aiming at demonstrating the potential of shallow geothermal energy and to foster its integration into energy planning instruments. It started in December 2015 and will last three years, involving 12 partners from Italy, France, Switzerland, Germany, Austria, and Slovenia. In this paper, the project is presented, along with the results of the first year of work.

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Author Biographies

Alessandro Casasso, Politecnico di Torino – DIATI

Assistant professor at Politecnico di Torino - DIATI.

Main research interest: shallow geothermal energy.

Bruno Piga, Politecnico di Torino – DIATI

Assistant researcher at Politecnico di Torino - DIATI.

Main research interest: shallow geothermal energy.

Rajandrea Sethi, Politecnico di Torino – DIATI

Full professor and head of Politecnico di Torino - DIATI.

 

Pietro Capodaglio, ARPA Valle d’Aosta, St. Cristophe (AO)

Contaminated sites office of ARPA Valle d'Aosta

Marcela Olmedo, ARPA Valle d’Aosta, St. Cristophe (AO)

External expert for the GRETA project

Alessandro Baietto, ARPA Valle d’Aosta, St. Cristophe (AO)

External expert for the GRETA project