Hydrodynamic Screws

PAE-type Hydrodynamic Screws by RONCUZZI are systems designed for the production of electric energy. Inspired by the Archimedes screw, which traditionally has been used for lifting water, the Hydrodynamic Screw reverses the principle and exploits the difference of potential energy of water between two different points on its downhill course. The water, naturally flowing from its highest point, starts the Hydrodynamic Screw which transforms hydropower into electrical energy. Hydrodynamic Screws exploit waterfalls of limited height and moderate flow rates ensuring an efficiency that cannot be matched by any other type of turbine. The minimum exploitable level drop is one metre, while flow rates may exceed 9,000 litres per second. For higher flow rates more screws can be installed in parallel. A single screw can produce up to 500 kW.