Reports suggest the dossier contains details of Enel’s planned bid for Electrabel, as well as outlining what Enel says are anti-competitive moves on the part of the French government to block an Enel-Suez tie-up.

Enel’s nascent joint bid for Suez’s assets with Veolia fell apart after the latter pulled out of the deal, and the French government moved to launch a Gaz de France-Suez merger instead.

The memorandum follows a meeting in Brussels between Italy’s finance minister Giulio Tremonti and the EU’s antitrust commissioners, Neelie Kroes and Charlie McCreevy.

The GdF-Suez deal has caused an outcry in Italy amid accusations that Paris is playing at protectionism, while there could yet be a backlash from the EU, with commissioners already warning France not to interfere with the functioning of the free trade area.