Review of the Greek Legislative Framework for Ground Source Heat Pumps (GSHPs) and Suggestions for its Improvement

The current paper presents an overview of the Greek legislation which is directly or indirectly related to ground source heat pump (GSHP) systems. The legislative acts which concern, among others,geothermal potential, shallow geothermal energy, installation of heating/cooling systems and domestic hot water production, use of surface water or groundwater, heat pumps, development of renewable energy sources (RES), energy related products and energy efficiency of buildings are outlined in this study. Furthermore, the relevant European directives and decisions with which the Greek legislation has been harmonized are presented.The Greek legislative framework for the development of GSHPs has been improved over time mainly due to the relevant European directives and decisions; however further improvements and developments are required. Therefore, changes regarding the legislative framework involving the licensing process for the installation of GSHP systems are recommended, concerning: a) system definition, b) installation specifications, c) clarification of responsibilities of involved departments, d) technical issues and e) simplification of the process.