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European Hydrogen Backbone grows to 40,000 km, covering 11 new countries

Twelve European gas TSOs from eleven European countries have joined the EHB initiative

  • Twelve European gas TSOs from eleven European countries have joined the EHB initiative
  • EHB group presents a vision for a 39,700 km hydrogen pipeline infrastructure in 21 countries
  • Two-thirds of the network is based on repurposed natural gas pipelines
  • Lower investment cost per kilometre of pipeline compared to previous estimate


Today, the European Hydrogen Backbone (EHB) initiative presents an updated version of its vision for a dedicated hydrogen transport infrastructure across Europe. The group proposes a hydrogen network of 39,700km by 2040, with further growth expected after 2040. This grid connects 21 European countries. The vision launched today follows the EHB report published in July 2020, which sparked a debate across Europe. That report described a network of 23,000km covering ten countries.

Two-third share repurposed pipelines
Some 69% of the proposed hydrogen network consists of repurposed existing natural gas grids. The remaining 31% newly built pipelines are needed to connect new off-takers and are located in countries with small gas grids today, yet with high expected future hydrogen demand and supply.

Lower investment costs per kilometre of pipeline
The almost 40,000 km envisaged 2040 backbone requires an estimated total investment of €43-81bn. The investment per kilometre of pipeline is lower compared to last year’s EHB report because the previous report only included cost estimates for pipelines with a diameter of 48 inch, while the present report takes into account that a large part of today’s natural gas infrastructure and of tomorrow’s hydrogen infrastructure consists of smaller pipelines. Smaller pipelines are cheaper to repurpose while leading to somewhat higher transport cost per kilometre. Transporting hydrogen over 1,000 km would on average cost €0.11-0.21 per kg of hydrogen, making the EHB a cost-effective option for long-distance hydrogen transportation.

Stable regulatory framework required
The hydrogen infrastructure maps for 2030, 2035 and 2040 published today reflect the vision of 23 European gas TSOs, based on their analysis of how infrastructure could evolve to meet decarbonisation targets. It is important to stress that the hydrogen transportation routes and timelines in the maps are not set in stone. The final Backbone design and timeline depend on market conditions for hydrogen and natural gas and the creation of a stable regulatory framework.


“Europe needs to rapidly develop dedicated hydrogen pipeline infrastructure. This new EHB report shows a clear roadmap of how this could work”, says Prof. Ad van Wijk, author of the 2x40 GW Electrolyser Plan and advisor to Hydrogen Europe.

“We are glad that eleven new countries have joined the EHB initiative. Our new report shows that a truly pan-European hydrogen infrastructure largely based on repurposed existing gas infrastructure is possible”, says Daniel Muthmann, Coordinator of the EHB initiative and Head of corporate development, strategy, policy and communication at OGE.

The report can be found here:

More informations


Creos Luxembourg is a gas infrastructure company based in Luxembourg, operating the national gas transmission system infrastructure.

Elering is an autonomous and independent integrated electricity and gas system operator whose primary task is to ensure the security of supply of energy to Estonian consumers. For this purpose, the company manages, administers and develops domestic and cross-border energy infrastructure. With its activities, Elering ensures the conditions for the functioning of the energy market and for the development of the economy.

Enagás is a European Transmission System Operator with 50 years' experience in the development, operation and maintenance of energy infrastructures, operating in eight countries. The company has more than 12,000 kilometres of gas pipelines, three strategic storage facilities and nine regasification terminals. In Spain, it is the main natural gas transporter and the Technical Manager of the Gas System. The company has committed to be carbon neutral by 2040 and to projects  promoting renewable gases - green hydrogen and biomethane - sustainable mobility and energy efficiency, among other areas. For more information, go to

Energinet was founded in 2004 as an independent public enterprise owned by the Danish Ministry of Climate, Energy and Utilities. Energinet owns, operate and develop the transmission systems for both electricity and natural gas in Denmark. Energinet’s aim is to enable a cost-effective transition of the energy system to 100 % renewable energy while maintaining the high level of security of supply. For more information, go to

Eustream is the operator of the high-pressure transmission system in the Slovak Republic whose main mission is the transmission of natural gas to Slovakia and through its territory to the European markets. Eustream operates a robust system of 4-5 parallel pipelines, representing an important energy connection between the Russian Federation and the European Union. It is connected to the primary transmission routes in Ukraine, Czech Republic, Austria and Hungary. A new gas interconnection pipeline with Poland will be commissioned in 2022.

FGSZ Ltd. is the owner and operator of the Hungarian high-pressure natural gas pipeline system servicing gas distribution companies, power plants and large industrial consumers. The company operates interconnectors with Austria, Slovakia, Ukraine, Romania, Serbia and Croatia, while planning to extend its network towards Slovenia as well. The company is committed to further enhancing its regional connections as well as the security of supply of the Hungarian national gas market, while also investigating the use of hydrogen in natural gas pipelines and reducing its GHG emissions, in line with our currently updated strategic vision. For more information, visit

Fluxys Belgium is a Euronext listed subsidiary of gas infrastructure group Fluxys headquartered in Belgium. With 900 employees the company operates 4,000 kilometres of pipeline, a liquefied natural gas terminal totalling a yearly regasification capacity of 9 billion cubic meters and an underground storage facility. As a purpose-led company Fluxys Belgium together with its stakeholders contributes to a better society by shaping a bright energy future. Building on the unique assets of gas infrastructure and its commercial and technical expertise, Fluxys Belgium is committed to transport hydrogen, biomethane or any other carbon-neutral energy carrier as well as carbon dioxide and to accommodate the capture, usage and storage of the latter.

Gas Connect Austria GmbH is a natural gas transmission system and distribution system operator, based in Vienna. With 280 employees, Gas Connect Austria operates a modern and powerful high-pressure network centred on the Baumgarten hub, with connections to Germany, Hungary, Slovakia and Slovenia, as well as to storage and production facilities. As a logistics services provider with a strong customer focus, the company is constantly developing its products and services in line with market requirements. Gas Connect Austria is intensively engaged with the issues of the energy transition at national and European level and is actively working on solutions for decarbonising the grids.

Gasgrid Finland Oy is a Finnish state-owned company and transmission system operator with system responsibility. We offer our customers safe, reliable and cost-efficient transmission of gases. We actively develop our transmission platform, services and the gas market in a customer-oriented manner to promote the carbon-neutral energy and raw material system of the future. Find out more:

Gas Networks Ireland operates and maintains Ireland’s €2.7bn, 14,500km national gas network. The modern network powers 30% of Ireland’s primary energy needs, 40% of the country’s heating and 50% of the nation’s electricity – more than 85% at peak times. A vital national energy asset, over 705,000 Irish homes and businesses rely on the gas network to provide safe, reliable and affordable energy to meet their heating, cooking, transport and power needs, while the whole country relies on its flexibility and responsiveness to meet electricity demand. By gradually replacing natural gas with renewable, carbon neutral and ultimately zero carbon gases, such as biomethane and hydrogen, Gas Network Ireland is on a journey to delivering a net-zero carbon gas network.

Gasunie is a European energy infrastructure company. The company provides the transport of natural gas and green gas via its subsidiaries Gasunie Transport Services B.V. (GTS) in the Netherlands and Gasunie Deutschland in Germany. The company also offers other services in the energy infrastructure field, including hydrogen, heat, CCS, gas storage and LNG. Gasunie commits itself to accelerating the energy transition and to the realisation of a climate neutral energy supply. For more information, go to .

GAZ-SYSTEM is a key player in the natural gas market in Poland as a company of strategic importance to the national economy and energy security. The Company is responsible, inter alia, for the management of the transmission network (11 056 km long) and for the transport of natural gas throughout the country (18.1 bcm without UGS in 2020) together with the LNG terminal in Swinoujscie in order to supply the fuel to distribution networks and to final customers. For more information, please visit the website

GRTgaz is gas transmission system operator which owns and operates more than 35,000 km of buried pipes and 26 compression stations. GRTgaz is committed to ensuring security of supply to consumers, connecting territories and communities with great care for the environment. GRTgaz delivers innovative and accessible solutions to accelerate and secure a successful energy transition by connecting the energies of tomorrow, driving the growth of renewables and new uses for gas while fostering synergy between electricity and gas systems. For more information, go to

Hellenic Gas Transmission System Operator (DESFA) S.A. is responsible for the operation, management, use and development of the Hellenic National Natural Gas System. DESFA is a reliable partner in the framework of the ongoing international energy projects in Southeastern Europe. DESFA is committed to support the fulfilment of the National Energy & Climate Plans targets, by planning its energy transition towards the decarbonize economy. For additional information, please visit the following website:

National Grid Gas Transmission owns and operates the gas National Transmission System in Great Britain, with day-to-day responsibility for balancing supply and demand. Our network comprises approximately 7,660 kilometres (4,760 miles) of high-pressure pipe, 23 compressor stations and 618 above-ground installations. Today, natural gas keeps 85 per cent of the UK’s 28 million homes warm and comfortable, generates electricity and fuels industrial and manufacturing processes. We aim to serve customers well and efficiently, supporting the communities in which we operate and making possible the energy systems of the future.

NET4GAS, s.r.o. is the gas transmission system operator in the Czech Republic. Through its network of almost 4,000 km of pipelines, NET4GAS transports around 45 billion m3 of natural gas per year. As a Central European gas transmission system operator, NET4GAS plays an active role in connecting and integrating European energy markets to the benefit of Czech and other European customers. At the same time, the company participates in shaping the European energy market in the context of the transition to a low carbon economy. For more information, visit .

Nordion Energi, is specialized in gas infrastructure with the aim to drive the energy transition and becoming the first gas grid in Europe with 100% green gas. We operate the gas grid in Sweden, which extends from Dragör in Denmark to Stenungsund in Sweden and transports energy to distributors and customers with direct links. The gas grid supplies 33 municipal areas and several combined heat and power plants and is also used in more than 34,000 households and in the transport sector. For more information, go to or

OGE, seated in Essen, operates the largest German gas transmission system spanning 12,000 kilometres. Two thirds of natural gas consumed in Germany flows through OGE’s pipeline system, comprising about 100 compressor units and about 1100 exit points. The OGE strategy 2030+ secures OGE’s  transmission business for the long run and prepares  pipeline network and numerous compressor stations for new gaseous energy carriers OGE actively support the European gas market and work together with the European distribution network operators to create the prerequisites for transnational gas transportation and trading. For more information, go to

ONTRAS Gastransport GmbH is a national gas transmission system operator in the European gas transport system based in Leipzig. ONTRAS operates Germany's second-largest gas transmission system, with approximately 7,500 km of pipelines and about 450 interconnection points, to ensure the seamless transport of natural gas to our customers. To do so, we link the interests of transport customers, dealers, regional network operators and producers of regenerative gases. 

Plinovodi d.o.o. is the natural gas transmission system operator in Slovenia. The main operational goal and activity of the company is provision of long-term, reliable, high quality, price competitive and environmentally acceptable transmission of gas. The gas transmission system consists of almost 1,2 thousand km of pipelines. It connects most of the large industry and urban centres with distribution systems in Slovenia. By constantly developing the system and introducing sustainable solutions and technologies, company Plinovodi d.o.o. enables users to access different sources of gas through various transmission routes. For more information, go to

Snam is an energy infrastructure operator and ranks among Italy’s largest listed companies, by market capitalization. The Group has Europe’s largest natural gas transportation network (over 41,000 km including its international footprint), a storage capacity of approx. 20 bcm and is a leading player in regasification. In its 2020-2024 strategic plan, Snam has planned 7.4 billion euros in investments and more focus on energy transition businesses such as biomethane, energy efficiency sustainable mobility and hydrogen. The company is committed to achieving carbon neutrality by 2040.

Trans Austria Gasleitung GmbH is a transmission system operator in Austria. Its pipeline system connects Baumgarten in Austria with Tarvisio in Italy over a distance of 380 km and has an annual transport capacity to Italy of 30 billion cubic meters of natural gas. The TAG pipeline network consists of around 1,140 km of high-pressure natural gas pipelines from the Slovakian-Austrian to the Austrian-Italian border. Along the route in Austria, the natural gas pipeline also supplies natural gas for consumption. TAG also transports natural gas to Slovenia via the SOL pipeline.

Teréga is established in South-West France and has over 75 years of experience in gas transport and storage infrastructure and continues today developing innovative solutions. A true accelerator of the energy transition in France and in Europe, Teréga operates over 5,000 km of pipelines and 2 underground storage reservoirs representing 16% of the French gas transport network and 26% of national storage capacities. Teréga enjoys a strategic position in Europe, thanks to its interconnections with Spain. Teréga aims at accelerating the green revolution enabled by renewable gas, through increasing its involvement in biomethane and hydrogen (including Power-to-Gas). For more information, visit



For further information please contact:

Creos Luxembourg
Jean-François SCHNEIDERS
+352 621 711 046

DESFA (Greece)
Natasha Chatziantoniou
+30 213 088 4058

Elering (Estonia)
Siim Iimre
+372 7151 222

Alexandra Issacovitch
+34 629858493

Energinet (Denmark)
Tine Lindgren 

Eustream (Slovakia)
Pavol Kubík


FGSZ (Hungary)
Dorottya Jászay

Fluxys (Belgium)
Laurent Remy
+32 479 65 92 29

Gas Connect Austria
Stefan Königshofer
Tel.: +43 (1) 27500-88100

Gas Grid Finland
Sara Kärki
+358 40 158 1722

Gas Networks Ireland
Brian Murphy
+353 87 601 5577

Paul O’Donoghue

Gasunie (the Netherlands)
Marie-Lou Gregoire
+31 6 2043 0070

Gaz System (Poland)
Iwona Dominiak

GRTgaz (France)
Jean-Marc Brimont

National Grid (United Kingdom)
Surinder Sian
+44 (0)7812 485 153

NET4GAS (Czech Republic)
Karin Stehlík
+420 604 223 577

Saila Horttainen

OGE (Germany)
Christian Page
+49 175 1877392

ONTRAS (Germany)
Dirk Manske
+49 341 27111 2095

Plinovodi (Slovenia)
Franc Cimerman

Teréga (France)
Ms. Mathilde Woringer
+33 5 59 13 32 52

Trans Austria Gasleitung GmbH (Austria)
Mr Roberto TEBALDI
+43 (1) 5975116 - 58145

Snam (Italy)
Roberta Vivenzio
+39 342 7719117

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