Smart charging electric cars with a dynamic price mechanism may play an important part to help keep the power grid from overloading. For her PDEng at Twente University, Marieke van Amstel from ElaadNL and Enexis Netbeheer designed a model to render power demand and supply more flexible. This will eliminate the biggest risk of overloading the power grid. Grid operators must be able to intervene if necessary and have cars charge more slowly in case of an overload risk.