Tomas Rahkonen is Research Director of Distributed Data Centers at Uptime Institute, where he also delivers sustainability training. Dr. Rahkonen has spent over 25 years in global positions in the telecommunications, mobile communications and data center sectors. He served over 10 years as a chief technical officer, managing the design and delivery of prefab data centers to four continents. He lives in Stockholm and holds a Ph.D. in Electrical Power Systems (KTH) and an M.Sc. in Computer Science and Engineering (with the final year at TKK Helsinki).