Find here the data related to the evolution of the electricity transmission network: creation/renewal of overhead or underground lines, dismantling of existing lines. The evolutions are segmented by voltage level: 400 kV, 225 kV, 90 kV, 63 kV. The map of RTE's main commissionings in 2023 is also presented, as well as the state of progress of projects under the S3REnR at the end of 2023.