Wind and Solar Droughts (IMAGE) Columbia University Caption Columbia researchers built an AI model to estimate how long and severe an energy drought would be in a combined wind-solar system. Credit Yash Amonkar and Upmanu Lall, Columbia Engineering Usage Restrictions Please credit researchers 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.