Climate change and the various threats related to it increasingly influence the design and operation of the electricity system. Traditional mechanical sizing criteria and insulation should therefore be questioned in light of the increase in the frequency of extreme weather conditions. If one considers the normal system adequacy approach, i.e. the N-1 criterion, lines in most electricity grids, even in Italy, would require updating to improve robustness in the face of increasing threat levels. On the other hand, adopting the resilience approach—which contemplates the system operating in a partially degraded state and where measures are in place to ensure immediate recovery after failure—would limit the need for such interventions. Rather, the focus would shift to operational planning relying on increased observation, prediction, prevention and resilience. To this end, a suite of tools has been developed to assess risks related to climate change, predict events, anticipate any disruptions and identify the best mitigation measures so that preventive and corrective measures can be taken when necessary. These tools are linked to the phenomenon of wet snow, intense storms, pollution events and droughts and must be considered as part of a broader and more comprehensive approach to resilience, including the dynamic assessment of the impact of single or cascade contingencies. This will help network operators’ decision making.