 This paper examines the feasibility of electrifying public transport bus networks using fast-charging battery buses. It analyzes the impact of charging stations on the electricity grid and the trade-offs between battery size and charging power. The study is based on data from a bus network in Munster, Germany, and shows that the optimal solution for electrifying the bus network is to focus on the entire schedule rather than individual trips. This article was authored by Matthias Rogge, Sebastian Wolney, and Dirk Uwe Sauer.