NUS Shadow-effect Energy Generator (IMAGE) National University of Singapore Caption The novel Shadow-effect Energy Generator developed by researchers from the National University of Singapore uses the contrast in illumination between the lit and shadowed areas to generate electricity. Credit Royal Society of Chemistry Usage Restrictions None 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.