Federal hydropower plants (IMAGE) DOE/Oak Ridge National Laboratory Caption An ORNL team developed statistical models to simulate and assess environmental conditions at federal hydropower facilities across the United States. Credit ORNL, U.S. Dept. of Energy Usage Restrictions cite credit License Original content 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.