Power systems around the world are changing due to the increasing share of variable renewable generation and new demand patterns. The higher variability and more uncertainty with respect to generation and demand will greatly challenge operation and control of future power grids. Increasing use of power electronics in generation, transmission and end use adds to these challenges, but can also represent part of the solutions providing more flexibility. From the perspective of the Nordic (Norway, Sweden Finland and Denmark) power system, this presentation will discuss some of the development trends and give brief introductions to some of the research topics that address the operational challenges. This includes the development of Wide Area Monitoring System (WAMS) applications to help operators gain improved situational awareness, control applications based on synchrophasor measurements and the utilization of power electronic VSC converters to improve power system control. Kjetil Uhlen   Speaker(s): Kjetil, Location: Seattle, Washington