Small Hydropower Plant With Archimedes Screw Turbine (image) DOE/Pacific Northwest National Laboratory Share Print E-Mail Caption PNNL is partnering with Percheron Power, LLC, to help the Kennewick, Wash.-based small business make hydropower cheaper. PNNL is helping Percheron evaluate using composite instead of steel to make screw-shaped turbines called Archimedes Hydrodynamic Screw turbines, which enable hydropower generation in small waterways. Shown here is a steel Archimedes turbine at a hydropower plant in Goryn, Poland. Credit Pesymista, via Wikipedia at https://en.wikipedia.org/wiki/Screw_turbine#/media/File:Turbina_Archimedesa_MEW_Goryn.jpg Usage Restrictions Credit the source, Pesymista via Wikipedia Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.