Managing distribution transformers (IMAGE) Iowa State University Caption This distribution transformer is one of about 5,500 across the city of Ames, Iowa. Iowa State University's Zhaoyu Wang and his collaborators are developing a data-based system to better manage the important links between the power grid and homes, farms and businesses. Credit Photo by Iowa State University. Usage Restrictions None 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.