Dr. Lina Bertling Tjernberg is a Professor in Power Grid Technology at the Royal Institute of Technology KTH, from September 2013. She was previously Professor in Sustainable Electric Power Systems at Chalmers University of Technology, 2009-2013, and during 2009-2012 she was the Head of the Electric Power Engineering Division. During 2007-2009 she was with the Swedish Transmission system operator. During 1997-2009 she was associated with KTH where she completed her PhD in Electric Power Systems in 2002. She has spent two research periods in Canada; during 2000 at University of Saskatchewan and during 2012/2013 with University of Toronto and Kinectrics. Her research area is in modernization of the electric power systems with special interest in reliability analysis and maintenance management.