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 a real-time view of flows, battery connection capacities and a simulator for connecting renewable energy and storage projects to the transmission network.