utilise the grids and thereby make it possible to connect more charging points. The growing number of electric cars puts additional strain on city power grids. In Amsterdam Vattenfall participates in a new study together with the university, a grid operator and other parties, to test a new concept of smart charging. The tests with flexible charging speed for electric cars will be carried out in 10 neighborhoods at 126 charging points in Amsterdam until the end of summer 2022. In the test, the charging speed will vary depending on the available capacity in the grid and the number of cars being charged in each moment. The system software monitors how much electricity is required by the connected charging stations. This software then ensures that the charging speed changes during the day with the number of vehicles charging at the same time. The project, Flexpower 3, is a follow-up to the earlier Flexpower 1 and 2 pilots, in which the power of charging stations was reduced in the evenings, regardless of the number of cars charging at that time. Flexpower 3 is a joint project with the Municipality of Amsterdam, grid operator Liander, construction company Heijmans, Vattenfall, the Amsterdam University of Applied Sciences and Dutch smart-charging innovation centre ElaadNL.