From the 21-26th of August 2016 the leading power engineering conference Cigré took place in Paris, France. Almost ten thousand participants attended the conference/exhibition. Jeroen van Waes was one of the Special Reporters for the session on Power System Performance. An important topic is the integration of large-scale renewable energy sources in transmission grids. This will give new challenges for network operators. Movares recently acquired an important contract for the engineering of a large substation for the connection of an offshore windfarm.