Since the liberalisation of the energy markets, a distinction has been made between network activities, i.e. the infrastructure needed to transport and distribute electricity and natural gas, and commercial activities, i.e. production, purchase and sale. The latter are subject to competition, while the infrastructure remain a natural monopoly.

Access to the networks is guaranteed to all suppliers on transparent and equal terms. This access and the associated tariffs are monitored by a regulating authority, the Institut Luxembourgeois de Régulation (ILR), which controls network tariffs and ensures that network operators fulfil their public service obligations and invest in the networks to guarantee security of supply.

Creos is responsible for the planning, construction, maintenance and operation of the high, medium and low voltage electricity networks and the high, medium and low pressure natural gas pipelines that it owns or has been entrusted with the management of. The networks managed by Creos include 12,280 km of electricity lines and 2,200 km of natural gas pipelines, as well as more than 317,000 electricity customers and around 50,000 natural gas customers. Creos also manages and reads meters, processes customer consumption data and invoices network access fees.

As an electricity and gas network operator, Creos fulfils its responsibility as a public utility and plans its infrastructure to meet the changing demand for electricity and gas. Security of supply and reliability of the energy networks are central to Creos' concerns.

Creos' mission is to ensure the reliable transmission and distribution of energy on the electricity and natural gas networks in the Grand Duchy of Luxembourg at transparent tariffs and facilitate the energy transition for its customer. The company carries out this mission on an equal footing with all suppliers and in compliance with its public service and environmental obligations. Creos' values are the basis for the success of its mission. Respect, team spirit, commitment and excellence characterise its daily work.