Watts Bar Nuclear Power Plant (IMAGE) DOE/Oak Ridge National Laboratory Caption The startup of the Tennessee Valley Authority's Watts Bar Unit 2 nuclear power plant gave researchers at Oak Ridge National Laboratory's Consortium for Advanced Simulation of Light Water Reactors a chance to showcase the predictive power of the group's advanced simulation code. Credit TVA Usage Restrictions Must use credit. License Licensed 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.