During the discussions on the German national grid development plan, TSOs have initiated a continuous dialogue with expert stakeholders, such as NGOs. So far, discussions have focused, among other things, on the analysis of sensitivities in order to get a better understanding about the impact of a certain parameter (e.g. capping some renewable production peaks) on the grid development need. During these discussions, NGOs and TSOs got a better understanding of different triggers of grid development, which fostered the dialogue in society on the future paths of the energy transition. TSOs also learned a lot about NGO concerns and contemplated new options, which they had previously not considered.