Power grids across the world are in a transition phase. The need to integrate renewables, spread of power electronics in all types of applications, climate change, communication technologies, use of electric vehicles, and drive to make the system robust with power available to all are major drivers. Power grids therefore are poised to become smarter in order to be able handle all these. This winter school will look at these various aspects of smart grids. With the range of topics that will be discussed including social impact, the Winter School is aimed to provide a truly holistic view about the future growth of power grids.