The European Union aims to achieve climate neutrality by 2050 and is relying largely on renewable electricity to reach this goal. The implementation of this energy transition is the subject of heated debate: A continental-scale system that concentrates energy generation infrastructure in the most suitable locations would provide the most affordable solution, but many citizens favor smaller, more dispersed supply networks. A new study prepared by researchers in Potsdam and Zurich shows that the implementation of such systems would not incur significant additional costs.