Hellenic Gas Transmission System Operator S.A.
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  • NON REGULATORY SERVICES
    • List of Supplementary Transmission Services
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      • Polyethylene Welding Certification
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Historical Background

The National Gas System Operator (DESFA) S.A. was founded on 30 March 2007, following the provisions of law 3428/2005 (Government Gazette 313/27.12.2005) on liberalization of the natural gas market, which aligned Greek laws with the European Directive 03/55/ EK. This law established DESFA S.A. as a subsidiary company owned in its entirety by DEPA S.A.

The newfound legal framework transferred the sector of the National Natural Gas System (NNGS) from DEPA S.A. to DESFA S.A. by means of a spin-off. The DESFA S.A. stature was approved with Presidential Decree 33/2007 Also with Presidential Decree 34/2007 (Government Gazette Α 31/20.02.2007) the procedure and criteria were established for the transfer of personnel for DEPA S.A. to DESFA.

Based on the former legislative framework, DESFA was appointed the full control of the NNGS, which is defined in article 6 of law No. 3428/05 and includes the Natural Gas Transmission System, i.e. the duct system with design pressure exceeding 19 barg and the Liquefied Natural Gas (LNG) station of Revithoussa. With the transfer of the aforementioned sector to DESFA S.A., the latter acquired a full and exclusive right to the operation, management, exploitation and development of the NNGS, which DESFA owns as well.

Management of NNGS, which is subject to Third Party Access, is governed by the provision of European and National legislation.

  • 2018

    The construction of the 3rd LNG storage tank is completed as part of the 2nd upgrade of the LNG Terminal in Revithoussa

  • 2017

    3rd Revision of the DESFA management code

  • 2017

    Signing of the Memorandum for Cooperation between the administrators of Bulgaria, Romania, Hungary and the ICGB Consortium for implementation of the Vertical Corridor

  • 2017

    Signing of the Memorandum of Understanding between DESFA and the Athens Stock Exchange Group (ATHEXGROUP) for the wholesale market development of natural gas in Greece and its expansion into Southeastern Europe

  • 2016

    Signing of the Interconnection Agreement between DESFA and Bulgartransgaz for the interconnection of the Bulgarian and Greek NNGS

  • 2015

    The National Natural Gas System expands to the Peloponnese and to the thermoelectric PPC station in Megalopolis specifically

  • 2013

    DESFA becomes a RAE-certified Independent Transmission Operator

  • 2010

    Reception of the first shipment of Liquefied Natural Gas (LNG) by a non - DEPA user in Revithoussa

  • 2010

    Release of the NNGS management code

  • 2007

    Greece’s & Turkey’s Natural Gas Systems get interconnected

  • 2007

    Founded as a subsidiary of DEPA S.A.

Hellenic Gas Transmission System Operator S.A.
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                Contact
                • DESFA Head Office
                • 357 -359 Mesogeion Av.
                • 152 31 Chalandri
                • Tel: +30 213 0884000
                • Fax: +30 210 6749504
                • Email: desfa@desfa.gr
                Εmergency Call
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                Links
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