Energy supply and use are responsible for 77% of the EU’s total greenhouse gas emissions. It is therefore of the utmost importance that the network planning process drives the transition towards renewable-based and efficient energy systems, and avoids creating further lock-ins into fossil infrastructure. It is also critical for network planning to ensure the resilience of the EU’s energy infrastructure to the impacts of climate change, such as extreme temperatures, water shortages and flooding risks. Regulation (EU) 2022/869 of the European Parliament and of the Council of 30 May 2022 on Trans-European Networks for Energy (TEN-E) invites the European Scientific Advisory Board on Climate Change to provide input to guidelines on scenarios for network development planning.