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Hellenic Transmission System Operator S.A

The Hellenic Gas Transmission System Operator (DESFA) S.A. is responsible for the operation, management, utilization and development of the National Natural Gas System and its interconnections, in a technically sound and economically efficient way, in order to best serve its Users with safety, reliability and adequacy. Contributing decisively to the security of supply and the diversification of supply sources of the wider region, DESFA also facilitates the development of competition in the Greek energy market, while systematically striving for the reduction of greenhouse gas emissions. Possessing extensive experience and having a highly skilled staff, DESFA is a reliable partner in the framework of the ongoing international energy projects in Southeastern Europe. The National Natural Gas Transmission System transports gas from the Greek-Bulgarian border (upstream TSO BULGARTRANSGAZ) and the Greek-Turkish border (upstream TSO BOTAS) to consumers in continental Greece. For more information, visit https://www.desfa.gr/en/