The term of resilience is a complex issue regarding power networks. It is generally understood as an equivalent to a return to the previous normal operating conditions by the technical operators. Geography on the other hand gives a broader and more changing sense to the term (Reghezza-Zitt, Rufat, 2015). 3 This paper is based on the results of a Ph.D carried out from 2012 to 2016 on the European electricity networks, including their vulnerability; continued by a comparison with US networks at a two-month research residency at the Electrical Engineering Department of Cornell University (USA) in 2016; as well as a collaboration on scenario building and stress tests conducted in 2018 with M2 students from the School for Computer Science and Advanced Techniques (EPITA), on the vulnerabilities of the French network.