I am about to begin my post-graduation thesis work at a top-tier research institution in India and my topics of focus are grid integration of renewable energy, power system analysis and smart grids. I am looking for topics that will be having signficant research value, other than being original and immensely interesting to work on. Earlier I had worked on the load flow studies of a regional grid in India rich in renewables during my summer internship. Any suggestion would be of immense help. Thanks!