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 2024 is also presented, as well as the battery connection capacities.
Évolution du réseau de transport [EN]
Overhead lines of the transmission network
- Incomplete year
- Preliminary data
Informations and sources
This graph shows changes in the overhead share of the transmission network.
The changes may correspond to :
- the commissioning of new lines
- renewal of existing lines
- removal of existing lines
- corrections corresponding to various regularizations (correction of errors in line length, change of assignment, consignments, etc.).
Underground lines of the transmission network
- Incomplete year
- Preliminary data
Informations and sources
This graph shows changes in the underground portion of the transmission network.
The changes may correspond to :
- the commissioning of new lines
- renewal of existing lines
- dismantling of existing lines
- corrections corresponding to various regularizations (correction of errors in line length, change of assignment, consignments, etc.).
Underground lines of the transmission network
- Incomplete year
- Preliminary data
Informations and sources
This graph shows changes in the underground portion of the transmission network.
The changes may correspond to :
- the commissioning of new lines
- renewal of existing lines
- dismantling of existing lines
- corrections corresponding to various regularizations (correction of errors in line length, change of assignment, consignments, etc.).
Length of electricity overhead and underground lines
- Incomplete year
- Preliminary data
Informations and sources
France’s electricity transmission system, operated by RTE, includes high-voltage lines operating at voltages of between 63 kV and 400 kV. It is the largest transmission grid in Europe. This grid is constantly evolving, with:
- The creation of new overhead and underground lines;
- The renewal of lines (replacement of conductors);
- The undergrounding of overhead lines;
- The decommissioning of lines.
The chart shows the evolution of the total length of the overhead and underground lines.