GIE President
Chairman of GIE Board and GIE General Assembly
Arno Büx is Senior Vice President Corporate Commercial of the Fluxys Group. Since November 1st, 2024, he is also CEO of FluxSwiss , the group’s Swiss affiliate.
Arno Büx is GIE President since October 2024. He also served as GLE President between 2019 and 2023.
Before joining Fluxys, he has evolved within the ENGIE Group for 20 years, working in Belgium, France and Luxemburg but mostly contributing to the development of the Group’s energy activities in Germany. He held various executive and non-executive management positions in businesses targeting the B2B and B2C commodity markets as well as the gas midstream sector.
Arno Büx holds degrees in Engineering and Business Administration as well as a certificate in Corporate Governance.
Luis Ignacio Parada
Enagás
Luis Ignacio Parada is EU Energy Policy & Regulation Director at Enagás, the main gas transmission, LNG and gas storage operator in Spain. He has 25 years of experience in the energy sector, where he has specialised in energy economics, gas and hydrogen sector regulation and energy policy.
Before joining Enagás, Luis started his career in 1998 at Gas Natural, and worked in NERA Economic Consulting from 2001 to 2004.
Since May 2023 he has served as Board member in ENTSOG and in GIE (Gas Infrastructure Europe), and since January 2024 he has been serving as President in GLE (Gas LNG Europe). He is also engaged as Board member in EASEE-gas since March 2019, and was a member of the Executive Committee of GTE (Gas Transmission Europe) from December 2020 to May 2023.
Luis Ignacio holds an Executive MBA from IESE Business School and a MSc. in Applied Economics. He graduated in Economics at Universidad de Salamanca (Spain).
Georg Dorfleutner
RAG Energy Storage
RAG Energy Storage
Early Life and Education:
Georg Dorfleutner, born in 1977 in Austria, displayed a blend of analytical prowess and linguistic skill from an early age. His academic journey began at the Bundesrealgymnasium Geblergasse in Vienna, where he completed his University Entrance Diploma (Matura) in 1995, excelling in Descriptive Geometry, Mathematics, and French. Georg’s intellectual curiosity and dedication to the law led him to the Universität Wien, where he earned a Degree in Law (Mag. iur.) in 2001, specializing in Administrative Law and Private International Law.
Career Path:
Georg’s professional journey is marked by a series of strategic positions that leveraged his legal expertise within the energy sector. He began as a trainee lawyer at WDR RECHTSANWÄLTE followed by DULLINGER SCHNEIDER RECHTSANWÄLTE GMBH in August 2003, honing his legal skills until December 2007. Prior to this, he had completed internships at notable institutions such as SIEMENS AG ÖSTERREICH and MAG. DAGMAR NEYER’s law firm, and also served as a trainee at the OBERLANDESGERICHT WIEN. In addition, he dedicated a year to civil service at DER WÜRFEL from June 2002 to May 2003.
In January 2008, Georg joined RAG – ROHÖL-AUFSUCHUNGS AG as a Senior Legal Counsel, where he began to integrate his legal expertise with the energy sector’s operational demands. His role evolved over time, leading him to become the Vice Executive Secretary at GIE – Gas Infrastructure Europe from October 2010 to September 2011, and subsequently the European Affairs Coordinator at RAG from October 2011 to December 2012.
Leadership at RAG Energy Storage GmbH:
Georg’s career reached a pinnacle in January 2013, when he was appointed as the Managing Director of RAG Energy Storage GmbH in Vienna. In this role, he has been responsible for marketing, business development, strategy, legal matters, market monitoring and evaluation, as well as regulatory affairs in the gas industry. His influence extends beyond the company, as he actively engages in lobbying within European and national associations. Georg has been serving as the Vice President of GSE since 2013, as a Board Member of GIE since 2022 and as a Board Member of the NGVA from 2016 till 2023, highlighting his significant impact on the energy sector at a European level.
Milan Sedláček
eustream
eustream, a.s.
Head of EU Affairs and Strategy at eustream, a.s.
Dr. Milan Sedláček is Head of EU Affairs and Strategy at Eustream, a.s. , the gas transmission system operator of Slovakia – which is an operator of one of the biggest import corridors of gas for EU. Milan has nearly 30 years of experience in gas transmission.
In his career in gas transmission he was holding various managerial positions oriented on business, regulation and strategy. He was managing the areas of transmission capacity sales, business development and strategy, always with strong focus on regulatory affairs. Currently he is as well the compliance officer of the company.
During his career he was responsible/cooperating in a number of projects, namely related to introduction of third party access to transmission network, transparency, unbundling, network codes implementation and EU affairs.
Furthermore, the integral part of his activities are the EU gas associations, being the active member of GTE, GIE and ENTSOG since their foundation, being also the member of GTE Executive Committee. He is an active member of Slovak Gas and Oil Association, long time working in IGU bodies, member of the editorial board of Slovgas journal. Milan is active speaker at various international conferences, and has an extensive publication activity.
Gaetano Mazzitelli
Snam
SNAM
Gaetano Mazzitelli has been Executive Vice President Commercial, Asset Planning & Regulatory Affairs of Snam since February 2021.
He began his career in Snam in 1995 with increasing responsibilities roles, including: national and international acquisition projects and the unbundling of transmission and regasification activities.
In 2001 he was Head of Tariffs and Project Evaluation at Snam Rete Gas, in charge of investment planning and regulated services tariff proposals and contributing to the company IPO.
From 2006 he was in charge of Snam Rete Gas Business Development, ensuring tariffs and network code proposals definitions, gas demand forecasts, the identification of markets and regulations development opportunities and participating to Stogit and Italgas acquisition and integration projects.
In 2011 he was appointed as Snam Executive Vice President of Regulatory Affairs.
He was Board Director in TAG Gmbh and in Interconnector UK Ltd.
He was Chairman of the Shareholder Meeting of PRISMA European Capacity Platform GmbH between March 2017 and March 2021.
He is President/CEO of ITG, the company owning and operating the pipeline connecting Adriatic LNG terminal with the Italian network.
He is GIE Board Member, GTE and GSE Executive Committee Member as well as ENTSOG Board Member.
He graduated in Mechanical Engineering at Politecnico di Milano and achieved a Master on Business for Energy and Environment at the Eni School for higher studies “E. Mattei”.
Ákos Kriston
Hungarian Gas Storage
Hungarian Gas Storage
Mr. Kriston has become CEO on 1st July 2020. He has been deputy CEO and a member of the Board of Directors of Hungarian Gas Storage since 1st October 2013. Previously, he worked for MVM Hungarian Electicity Plc. among others as Head of Business Development. Before joining MVM Group Mr. Kriston worked in the field of financial advisory and audit for almost 10 years at Deloitte and KPMG, both in Hungary and in Germany. Mr. Kriston holds an MSc. degree in Business Administration and graduated from Corvinus University, Budapest.
Pieter van Aartsen
Gasunie
Gasunie
Pieter van Aartsen is company secretary of Gasunie. In addition to this position he heads the government and regulatory affairs department. Before taking up his position as GIE board member he chaired the strategy task force and represented GIE in the steering committee of GasNaturally.
Previously he has worked as policy advisor on energy, climate and the internal market in the European Parliament. He was closely involved in the negotiations between the EU institutions on the Third Energy Package and the Second Strategic Energy Review. Before relocating to Brussels he was working in the communications department of a political party and worked on several election campaigns in the Netherlands.
Ralph Bahke
Ontras
Ontras
Ralph Bahke, born 1964, studied Information Technology at the Technical University of Dresden. He joined VNG – Verbundnetz Gas AG in 1994 and became responsible for the planning of automation technology. In 2001 he changed to the Gas Transportation Department where he held various senior management positions.
Between January 2006 and November 2008, Bahke worked in senior management posts of the Network Marketing Department in the newly established transmission system operator ONTRAS. Since November 2008 he has been one of the two ONTRAS managing directors, responsible for the division controlling and development.
From December 2009 to December 2015 Bahke was board member of the European Network of Transmission System Operators for Gas (ENTSOG).
In 2011 Bahke was appointed member of the Energy Advisory Board of the German Free State of Saxony. Since December 2012 Bahke was Chairman of the board of “Vereinigung der Fernleitungsnetzbetreiber Gas e.V.”, the association of German Transmission System Operators for Gas. He gave up this position in 2020 and joined GIE (Gas Infrastructure Europe) board in January 2021.
Charlotte Roule
Storengy
Storengy
On 1 March 2023, Charlotte Roule took the position of Chief Executive Officer of Storengy, the European leader in underground natural gas storage.
She will continue to develop and leverage the company’s unique expertise in the storage of renewable gases and the production of natural hydrogen, while accelerating its role as a leader in the energy transition.
As part of her significant roles, she will also assume the management of the storage business in France following the departure of its Managing Director, Pierre Chambon, who has just joined ENGIE. Charlotte Roule was hitherto ENGIE Group Strategy Officer. In charge of long-term forecasting, strategic dialogue, and competitive intelligence, she participated in the review of major projects for the company. Before joining the Strategy Department, she managed Storengy UK and ENGIE in China where she coordinated projects focusing on renewable energy, clean solutions for cities and industries, such as cooling networks and electrical mobility.
She was Vice President of the European Chamber of Commerce in China from 2018 to 2021. Now, she represents the Chamber in Paris. Moreover, she is currently a member of the Board of Directors of France Gaz (formerly Association Française du Gaz).
In 2022, Charlotte Roule accompanied the President of ENGIE in his role as co-chair of the B20 (G20business group) Energy, Sustainable Development and Climate working group.
Doug Waters
Uniper Energy Storage
Uniper Energy Storage
Doug Waters has worked in the international energy industry for over 20 years across many areas of the business, both technically and commercially – including almost 18 years at E.ON and Uniper.
Starting as a gas turbine specialist, he then had a number of roles in Power Generation, UK Energy Trading, Asset Management and Global CCGT Fleet Management in UK and Spain. In 2015 Doug and his family relocated from Madrid to Dusseldorf, Germany, where for the following five years he has been the Director of Uniper’s international Global Energy Services business with teams in India, Dubai and Singapore as well as UK and Germany. Since November 2020 Doug Waters is heading the gas storage operator Uniper Energy Storage and leading Uniper’s successful storage business into the future market environment.
Doug holds a Master’s degree in Mechanical Engineering from Birmingham University, UK and an Executive MBA from ESMT, Berlin, Germany. He is a Chartered Engineer in the UK registered with the Engineering Council and holds a UK NEBOSH Construction Certificate as well as having qualifications related to commodity future and derivatives.
Pierre Duvieusart
GRTgaz
GRTgaz
Pierre DUVIEUSART has been Executive Vice President since September 1, 2018.
A graduate of the Ecole Nationale Supérieure du Pétrole et des Moteurs and the Catholic University of Louvain in Belgium, Pierre Duvieusart is a professionnal of the energy sector.
He started his career in the Elf Group where he held several positions mainly in the Exploration-Production Division. In 2001, he joined the Gaz de France group as M&A Project Manager, before joining the team responsible for the IPO of the company. In 2012, Pierre was appointed GRTgaz’s new Chief Financial Officer and on September 1, 2018, he was appointed Deputy Managing Director of GRTgaz.
Sławomir Hinc
GAZ-SYSTEM
President of the Management Board
GAZ-SYSTEM
Sławomir Hinc has long-standing experience in natural gas industry, having been
directly involved in the development of the concept of national gas transmission
system operator in Poland since 2003. From 2004 to 2008, he held the position of
Financial Director at PGNiG Przesył (currently GAZ-SYSTEM), where he was responsible
for cooperation with the Energy Regulatory Office, negotiations of the lease
agreement for transmission assets that were transferred to GAZ-SYSTEM by PGNiG as a
dividend in kind. He also supervised the process of obtaining a gas transmission license
by GAZ-SYSTEM. From 2006 to 2008, he served as a commercial proxy in GAZ-SYSTEM.
He is the author of its first transmission tariff. He was responsible on GAZ-SYSTEM’s part
for the transfer of Regional Transmission Branches from PGNiG S.A. structures to
GAZ-SYSTEM in 2005.
From 2008 to 2013, he served as Vice-President for Financial Affairs at PGNiG, where
he was responsible for the spin-off of the storage system operator (SSO) currently
independently operating under the business name Gas Storage Poland and the
launch of storage services on the market. From 2008 to 2014, he served as a member
of the Supervisory Board of EuRoPol GAZ. In 2010, he was appointed to the Governing
Board of the European Association of Gas and Oil Companies EUROGAS in Brussels
where he served until 2015.
From 2013 to 2016, he served as President and CEO of PGNiG Upstream Norway, where
he was responsible for the acquisition of PGNiG’s interests in 4 gas fields, and for this
business deal he received the Gullkronen Award for the best oil transaction in Norway.
He also supervised the company’s expansion of exploration activities in the north of
Norway, including the obtaining of exploration licences in the Barents Sea by PGNiG.
From 2019 to 2024, he was involved in the renewable energy industry, first as an advisor
to the Management Board and then as a member of the Supervisory Board of
Helioexpert. In 2019, he was appointed as President and Managing Director at Green
Genius – a Polish branch of a Lithuanian solar power plant operator.
He holds a degree in economics from the Institute of Foreign Trade at the University of
Gdańsk and a Ph.D. in engineering and technology specialising in gas transmission
tariff systems from the Faculty of Environmental Engineering at the Warsaw University
of Technology. He also studied at the Vienna University of Economics and Business and
University of Applied Sciences in Berlin. He completed postgraduate Business
Management Programme organised by the Central Connecticut State University.
Lecturer at postgraduate studies at the Warsaw University of Technology and the AGH
University of Science and Technology in the field of transport, tariffs and regulatory
affairs in the natural gas market. Author of numerous publications on natural gas tariffs
and transportation.
Anna Slavkovská
Nafta
NAFTA
Anna Slavkovská is a senior expert on regulatory issues focused on EU and Slovak national regulation. Since 2009 she is in a role of leading regulatory lawyer at NAFTA a.s. – a storage system operator active in Slovakia, Austria, Germany, and Czech Republic . In December 2022 she was appointed as a managing director of NAFTA Speicher Inzenham GmbH – a storage system operator in Germany.
Besides being focused on regulatory issues and providing support in this respect for storages within NAFTA group, she also closely cooperates with NAFTA´s commercial department giving her an insight into practical business needs of gas storages. Moreover, she is also deeply involved in NAFTA’s decarbonization projects in various fields e.g. renewable electricity production, hydrogen storage and biomethane.
Anna is also a member of IGU (International Gas Union) Storage Committee focusing on the area of storage regulations and an active representative in GIE within GSE column from 2009. Starting 2023 she is also a member of the GSE Executive Committee and a member of the GIE Board.
Martin Cook
National Gas
Chief Commercial Officer
National Gas
Martin is Chief Commercial Officer at National Gas and has worked for National Gas and its predecessor companies since 2000. He joined from Price Waterhouse Coopers where he spent 10 years as a management consultant working in the Energy Sector.
Martin has had a varied career in National Grid working in both the US and the UK and has led several of National Grid’s non-regulated business units. He is currently responsible for all commercial activities in the Gas business with responsibility for regulation, hydrogen related developments, business planning and strategy.
Martin is a qualified accountant and holds a degree in Metallurgy and Material Science.
