Electricity generated in the regions not only meets local needs but also helps cover demand in neighbouring areas and beyond. The transmission grid helps ensure inter-regional solidarity in two ways.
- First, geographically: The Centre-Val de Loire and Grand Est regions, for instance, produce much more electricity than they consume and thus make a great contribution to solidarity. Regions that rely heavily on imports from neighbours, such as Ile-de-France, Bourgogne-Franche-Comté and Brittany, know that they will have enough supply to keep up with demand.
- Second, in terms of timing: Each region must rely at certain times on generation from other areas.
Most of these exchanges flow over the public transmission grid.
Electricity exports and imports between the French regions in 2019