popular articles

Pipeline between Barcelona and Marseille: an ambitious but risky project

The hydrogen pipeline project between Barcelona and Marseille, which was discussed today on the sidelines of a summit in Spain of southern EU countries, is considered essential for Europe's energy sovereignty, but is based on a risky bet.

Please share:

The ambitious “green” hydrogen pipeline project between Barcelona and Marseille H2Med, officially launched Friday in Alicante, Spain, will be operational in 2030 and cost about 2.5 billion euros, French and Spanish leaders announced. This project should be “completed by 2030,” said French President Emmanuel Macron after a meeting with the heads of government of Spain and Portugal, Pedro Sanchez and Antonio Costa.

For his part, Mr. Sanchez said that the cost of construction of H2Med should “approach 2.5 billion euros. This pipe will transport by 2030 some two million tons of hydrogen per year, he also said.

This project will be submitted by December 15 to the European Commission in order to benefit from the status of “project of common interest” and therefore European funding, added Macron. Present at the meeting between the Spanish, French and Portuguese leaders, the President of the European Commission, Ursula von der Leyen, “warmly welcomed” this agreement between the three countries, which “goes in the right direction”.

This undersea pipeline is designed to transport so-called “green” hydrogen, produced from renewable electricity, from the Iberian Peninsula, which aims to become a champion of this energy of the future, to France and the north of the EU.

This project replaces the “MidCat”, launched in 2003 to link the French and Spanish gas networks via the Pyrenees, but finally abandoned due to its lack of economic interest, the opposition of environmentalists and that of Paris.

Schedule, cost, route… Here is what we know at this stage about this initiative launched jointly by Madrid, Lisbon and Paris. What does this project consist of? Called “H2Med” or “BarMar” (a contraction of Barcelona-Marseille), this undersea pipeline is intended to transport gas and then so-called “green” hydrogen – because it is made from renewable electricity – from Spain to France and the north of the EU.

 

This project, announced on October 20 at a European summit, replaces the “MidCat”, launched in 2003 to link the French and Spanish gas networks via the Pyrenees, but finally abandoned because of its lack of economic interest, the opposition of environmentalists and that of Paris.

What are the objectives of the “Corridor”?

The H2Med aims first of all to reduce Europe’s dependence on Russian gas by improving gas interconnections between the Iberian Peninsula and its neighbors. Spain and Portugal have 40% of the EU’s regasification capacity, but are poorly connected to the rest of the EU member states.

Above all, this pipeline will ultimately accelerate the decarbonization of European industry by giving it access to clean energy produced on a large scale, as Spain and Portugal prepare to become world leaders in green hydrogen, thanks to their numerous wind and photovoltaic farms.

 

Why Marseille and Barcelona?

According to the promoters of the project, this connection is “the most direct and efficient option to connect the Iberian Peninsula to Central Europe”. In fact, Barcelona hosts “one of the largest LNG terminals” in the EU and occupies “a place of choice in the Spanish gas network”, said to AFP José Ignacio Linares, professor at the Pontificia Comillas University in Madrid. Marseille is well connected to the French network. It is also an interesting gateway to serve the Rhone Valley, Germany and even northern Italy, industrial regions that will become major consumers of green hydrogen.

Which route?

The exact route of the pipeline has not yet been communicated, but “the most logical” would be that it “follows the coast”, in order to avoid underwater areas that are too deep, according to Linares.
In this case, the H2Med would make about 450 kilometers. But a slightly different route is not excluded, the persons in charge of the project having to find “the most stable grounds possible”, even if it means to move away a little from the coast, specifies the researcher.

What obstacles?

H2Med faces several technical difficulties, partly related to its novelty. “A submarine hydrocarbon pipeline at this depth, at this distance, has never been done”, underlines Gonzalo Escribano, expert of the Spanish study center “Real Instituto Elcano”.

For José Ignacio Linares, one of the main problems is the nature of hydrogen, a gas made up of small molecules that can escape through the joints of the pipeline and are also extremely aggressive, which can lead to corrosion problems. But these problems “are not insurmountable”, underlines this engineer of formation. “All you have to do is install a membrane inside the pipe, some kind of plastic, to prevent the hydrogen from escaping or attacking” the metal, he adds.

What future?

The real risk, for the experts, is the economic viability of the project. Since the technology is still in its infancy, “we don’t know when the green hydrogen market will take off, when we will be able to produce enough to export it,” says Escribano.

 

This will turn the construction of the H2Med into an industrial bet. “The problem is that the construction time for a pipeline is so long that we can’t afford to wait. Otherwise, we’ll end up with a lot of hydrogen production that we won’t be able to export,” says Linares. Linares.

Register free of charge for uninterrupted access.

Publicite

Recently published in

Elcogen and Casale begin collaboration on Power-to-X projects combining solid oxide electrolysis and chemical processes in green ammonia production.
Statkraft halts the development of new green hydrogen projects due to increased market uncertainty, while continuing to structure certain existing assets to attract investors.
Statkraft halts the development of new green hydrogen projects due to increased market uncertainty, while continuing to structure certain existing assets to attract investors.
ITM Power has been selected to supply six POSEIDON electrolysis modules for Uniper’s 120MW Humber H2ub® (Green) project, scheduled to be operational by 2029.
ITM Power has been selected to supply six POSEIDON electrolysis modules for Uniper’s 120MW Humber H2ub® (Green) project, scheduled to be operational by 2029.
PureWave Hydrogen is accelerating exploration activities near the Sue Duroche 3 well, where HyTerra confirmed a 96.1% concentration of natural hydrogen, reinforcing the geological potential of the Nemaha Ridge area.
PureWave Hydrogen is accelerating exploration activities near the Sue Duroche 3 well, where HyTerra confirmed a 96.1% concentration of natural hydrogen, reinforcing the geological potential of the Nemaha Ridge area.
Enagás begins consultations for its future hydrogen transport network in Castile-La Mancha, covering 13 regions and 550 municipalities on a 2,600 km infrastructure, backed by European funding.
Norwegian group Nel ASA will supply PEM electrolysers to Collins Aerospace under a contract supporting oxygen systems onboard US Navy submarines.
Norwegian group Nel ASA will supply PEM electrolysers to Collins Aerospace under a contract supporting oxygen systems onboard US Navy submarines.
Nel ASA announced that Statkraft has cancelled a 40 MW order for alkaline electrolysers, resulting in a NOK120mn ($11mn) reduction in the Norwegian manufacturer’s order backlog.
Nel ASA announced that Statkraft has cancelled a 40 MW order for alkaline electrolysers, resulting in a NOK120mn ($11mn) reduction in the Norwegian manufacturer’s order backlog.
Plug Power has signed an agreement for a $525mn secured financing with Yorkville Advisors, while announcing strong preliminary results for the first quarter of 2025.
Plug Power has signed an agreement for a $525mn secured financing with Yorkville Advisors, while announcing strong preliminary results for the first quarter of 2025.
H2APEX announces €35mn financing from its main shareholders and plans a €30mn capital increase in June to accelerate the development of its hydrogen production capacities in Germany.
Tyczka Hydrogen received the first certification under the EU's RFNBO scheme on 15 April, marking a strategic milestone for renewable hydrogen logistics across Europe.
Tyczka Hydrogen received the first certification under the EU's RFNBO scheme on 15 April, marking a strategic milestone for renewable hydrogen logistics across Europe.
French group Lhyfe confirmed on April 17 a €149 mn public subsidy for its Green Horizon project, targeting daily output of 34 tonnes of green hydrogen near the industrial port of Le Havre by 2029.
French group Lhyfe confirmed on April 17 a €149 mn public subsidy for its Green Horizon project, targeting daily output of 34 tonnes of green hydrogen near the industrial port of Le Havre by 2029.
Gen-Hy secures €99.84 mn in public funding to build an electrolyser plant in Allenjoie, with 250 jobs projected and operations set to begin in 2026.
Gen-Hy secures €99.84 mn in public funding to build an electrolyser plant in Allenjoie, with 250 jobs projected and operations set to begin in 2026.
Mantle8 has reported exceptional soil gas readings at Comminges, in the Pyrenees, confirming the effectiveness of its proprietary predictive exploration technology for natural hydrogen.
The Hidrogenii joint venture, formed by Olin and Plug Power, has launched a 15 TPD hydrogen liquefaction plant in St. Gabriel, Louisiana, strengthening the regional hydrogen supply and the U.S. energy transition.
The Hidrogenii joint venture, formed by Olin and Plug Power, has launched a 15 TPD hydrogen liquefaction plant in St. Gabriel, Louisiana, strengthening the regional hydrogen supply and the U.S. energy transition.
Paris scales back its hydrogen roadmap, reducing the target to 4.5 GW by 2030 and 8 GW by 2035 amid weak demand and technological delays.
Paris scales back its hydrogen roadmap, reducing the target to 4.5 GW by 2030 and 8 GW by 2035 amid weak demand and technological delays.
CB&I, Shell and their partners have completed the design of a large-capacity liquid hydrogen tank at NASA’s space centre, aiming to cut commercial-scale storage costs for global trade.
CB&I, Shell and their partners have completed the design of a large-capacity liquid hydrogen tank at NASA’s space centre, aiming to cut commercial-scale storage costs for global trade.
Authorities in Newfoundland have released the guidelines for EVREC’s green hydrogen project impact study, marking a key regulatory step in the industrial development of this energy hub.
Hyundai Motor Group, in partnership with Pertamina and Indonesian authorities, announces the construction of a waste-based hydrogen production site in West Java, set to be operational by 2027.
Hyundai Motor Group, in partnership with Pertamina and Indonesian authorities, announces the construction of a waste-based hydrogen production site in West Java, set to be operational by 2027.
Indian group Cyient will lead the engineering work at the Bodø hydrogen site in Norway, under a partnership with GreenH and Luxcara to supply maritime transport.
Indian group Cyient will lead the engineering work at the Bodø hydrogen site in Norway, under a partnership with GreenH and Luxcara to supply maritime transport.
The French government has delayed by 24 hours the presentation of its new hydrogen strategy, now scheduled for Wednesday, amid expectations from industry facing weak demand and high production costs.
The French government has delayed by 24 hours the presentation of its new hydrogen strategy, now scheduled for Wednesday, amid expectations from industry facing weak demand and high production costs.
The green hydrogen industry is expected to grow at an average annual rate of 45.6% through 2032, driven by industrial demand, hydrogen mobility, and public decarbonisation policies.
Prime Minister François Bayrou has announced the imminent release of the revised hydrogen strategy, awaited for months by industry players facing insufficient demand.
Prime Minister François Bayrou has announced the imminent release of the revised hydrogen strategy, awaited for months by industry players facing insufficient demand.
Polish energy group ORLEN has initiated a market study on low-carbon ammonia for use in fertiliser production and synthetic fuel, as part of its long-term industrial plans.
Polish energy group ORLEN has initiated a market study on low-carbon ammonia for use in fertiliser production and synthetic fuel, as part of its long-term industrial plans.
Lhyfe has been shortlisted for two green hydrogen production projects in the UK under the HAR2 scheme, paving the way for 15-year public contractual support.
Lhyfe has been shortlisted for two green hydrogen production projects in the UK under the HAR2 scheme, paving the way for 15-year public contractual support.

Advertising