On January 9, 2020 Yangyang passed his Ph.D defense. Yangyang presented his dissertation titled听Modeling and Control of Grid-Interactive Efficient Data Centers听to committee members Dr. John Zhai, Dr. Kyri Baker, Dr. Jianming Lian, Dr. Sen Huang, and advisor Dr. Wangda Zuo. Huge congratulations to Dr. Yangyang Fu on this accomplishment, and we wish him the best on his future endeavors!