Who Buys French
Electricity?

France exports its electricity surplus to four neighbors. Each interconnection has its own character, constraints, and history.

France: Europe's electricity hub

France's nuclear overcapacity has made it a structural electricity exporter for decades. In 2023 it exported a net 50 TWh across four interconnections — to the UK, Spain, Italy, and Switzerland.

Line thickness shows volume traded. Blue means France exports to that neighbor; red means France imports. Note: the Germany–Belgium corridor is not available as a separate column in this dataset.

Italy: France's biggest customer

Italy consistently absorbs the largest share of French electricity exports — around 13 TWh per year. Italy relies heavily on gas generation and faces structurally higher spot prices, making French nuclear power a cheaper import.

The Mont-Cenis and Fréjus interconnections cross the Alps at altitude, with a combined capacity of ~3,500 MW — enough to power the whole of Belgium.

Switzerland: the bilateral corridor

Switzerland operates as both a transit hub and an active trading partner. Its pumped-hydro reservoirs act as a giant battery: France sends cheap overnight nuclear surplus to Switzerland, which returns it as premium hydro power during peak hours.

This arbitrage makes the France–Switzerland corridor one of the busiest in Europe, with flows reversing multiple times per day.

Spain: the Pyrenees bottleneck

Despite being France's southern neighbor, Spain has the lowest trade volume of the four. The Pyrenees mountain barrier limits interconnection capacity to just ~2,800 MW — less than a single nuclear plant. The EU has flagged this link as a strategic infrastructure gap for over two decades.

A new submarine cable through the Bay of Biscay is under study. Until then, the Iberian Peninsula remains an 'energy island' — largely cut off from continental Europe's grid.

Winter 2022: France flips to importer

For the first time since 1980, France became a net electricity importer in 2022. EDF discovered stress corrosion on 12 reactors simultaneously, taking half the nuclear fleet offline. France — normally Europe's exporter — suddenly needed to buy power from its neighbors.

All four trade routes reversed. The grid held, but at record spot prices — a stark reminder that France's export capacity rests entirely on nuclear availability.

Sources

Data is approximate and for illustrative purposes only. Verify against official publications before any decision-making use.