Risk analysis of high enthalpy fluid storage in geothermal power systems

The aim of this paper is to present the study elaborated through a specific risk analysis approach that highlights the potential risks and accidents in a geothermal installation in order to make the latter more reliable and environmentally friendly. The study also aims at offering a different perspective to the public benefiting from geothermal energy by influencing positively peoples 'awareness on this kind of facilities. The geothermal fluid may contain several Non-Condensable Gases (NCG), such as carbon dioxide (CO2) and hydrogen sulfide (H2S). Moreover, the presence of silica and boron in the geothermal brine can be hazardous both to people and to the surface environment. The safety analysis presented determines potential accidents in the storage phase and appropriate remediation actions, in the case that the geothermal fluid reinjection methodology is used.