The cable links will connect two offshore wind farms, Fos and Narbonnaise, to the French transmission grid. Credit: fokke baarssen/Shutterstock. The French high and very-high voltage grid collects most of France's electricity generation, conveys it to consumption areas and connects France with its neighbouring countries. As one of Europe's largest exporters of electricity, the upgrade of France's grid is essential for the power supply of the continent. RTE, France's. This guide explains leading cable solutions for France's energy transition and grid modernization, using Nexans as a benchmark. It shows how cable choices affect project reliability, schedule risk, and. Prysmian has been awarded significant batches of a three-year agreement for the supply of High Voltage and Extra High Voltage underground cables from RTE, the Transmission System Operator in France and a key player within Europe's power system, with the most extended High and Ultra High Voltage. Hellenic Cables, the cables segment of Cenergy Holdings, has been selected by RTE (Réseau de Transport d'Électricité) to supply 170km of 90kV cables and 420km of 225kV cables and associated accessories and perform the assembly of the cable systems for its underground network development projects. French cable giant Nexans has been selected by Réseau de Transport d'Electricité (RTE), France's Transmission System Operator (TSO) for a three year contract to deliver cables, accessories and installation services for underground power grid connections at 90 kV, 220 kV and 400 kV, with an option.