A French geothermal energy project called FONGEOSEC will use HFC-245fa based ORC (Organic Rankine Cycle) technology to produce 5.5 MW from deep high temperature geothermal wells.
High temperature geothermal energy uses the heat of the Earth at depths of 3 to 6 kilometers. Geothermal wells capture this heat in a water loop flowing from the surface to the bottom of the wells. Hot water above 150 C feeds an ORC which will produce electricity and heat, to be used in a district heating network.
Source : Producer information