Creos was formed as a result of a deal to unite Cegedel S.A. – the Grand-Ducal electricity company of Luxembourg, which was founded in 1928 and at the time distributed 70% of the electricity in the country - , Soteg S.A. – Luxembourg's primary gas supplier - and Saar Ferngas AG – a distribution company created in 1929 in Saarland. On 23 January 2009, all the unites of ownership from Cegedel S.A. and Saar Ferngas AG were transferred to Soteg S.A., which made restructuring with retrospective effect on 1 January 2009, giving birth to a new energy group. Named Enovos, it included the parent company Enovos International S.A. and the two main subsidiaries: Creos (formerly Cegedel S.A.) in charge of network activities, and Enovos Luxembourg S.A. in charge of production, sales and marketing. Enovos and Creos each have a subsidiary for the German market: Enovos Deutschland and Creos Deutschland.