Inelfe, a company equally owned by REE and RTE, has awarded the construction of the tunnel for the France-Spain electrical interconnection through the Pyrenees to a business consortium led by Eiffage TP and Dragados, of which Setec, Arcadis and Sener are also members. The tunnel, which will be 8.5 kilometres long and 3.5 meters in diameter, will house the electrical interconnection cables in the section that crosses the Pyrenees, while for the rest of the underground layout a trench will be used. The link will run parallel to the high speed train tunnel, at a distance of between 30 and 100 meters, and it will also begin and end in the municipalities of La Junquera in Spain, and Montesquieu des Albères in France. The interconnection works through the massif des Albères will begin in 2012 and will last approximately one year. This award follows the contracts signed last December with Prysmian and Siemens to build the necessary cables and converter stations. The France-Spain Interconnection will increase the capacity of electricity exchange between the two countries from 1,400 to 2,800 MW.