In this section, you can access to the latest technical information related to the FUTURE project topic.

Relaxation factor for geothermal use development ? Criteria for a more fair and sustainable geothermal use of shallow energy resources

Publication date: July 2015
Source:Geothermics, Volume 56

Author(s): Alejandro García-Gil , Enric Vázquez-Suñe , Eduardo Garrido Schneider , José Ángel Sánchez-Navarro , Jesús Mateo-Lázaro

This study attempts to promote new groundwater thermal management policies for the shallow geothermal energy sector, which is currently at risk of stalling due to the existing uncertainty of its international legal status. The physical constraints affecting groundwater thermal management policies are described as a basis for a later proposal of an approval process protocol for new shallow geothermal installations. The policy proposed for this process is based on numerical modeling and a relaxation factor which reserves a fraction of shallow geothermal energy resources for possible third party installations thus preventing its monopolization. The policy is then applied to simulate a concession process in a real urban groundwater body highly affected by ground source heat pumps. A calibrated numerical groundwater flow and heat-transport model has been utilized for the evaluation of the thermal response of the aquifer to a new projected installation and the thermal interference risk associated. The results obtained from the protocol application have proven its practical value in the sustainable management of shallow geothermal energy resources and in ensuring stakeholders water rights. In addition, a specific policy impact indicator was derived that should be of interest for numerical water policy assessment initiatives.
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