Hydrogen Interconnector Spain-Portugal

From Global Energy Monitor
This article is part of the Global Fossil Infrastructure Tracker, a project of Global Energy Monitor.

Hydrogen Interconnector Spain-Portugal is a proposed hydrogen pipeline in Poland.


The pipeline is proposed to run from Zamora, Spain to Celorico, Portugal.

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Project details

  • Operator: Enagás, REN Gasodutos, S.A.
  • Owner: Enagás, REN Gasodutos, S.A.
  • Parent company: Enagás, State Grid Corporation of China, Pontegadea Inversiones S.L, Other.[1]
  • Capacity:
  • Length: 248 km
  • Diameter: 700 mm[2]
  • Status: Proposed[3]
  • Start year: 2025[4]
  • Cost:
  • Financing:
  • Associated infrastructure:


The Celourico-Vale de Frades project would be the first stage of an international pipeline that would continue 86 kilometers across the border to Zamora, Spain.[5] The Spanish section of the pipeline would be known as the Spain-Portugal Interconnector Gas Pipeline. Both pipelines form part of a larger international pipeline project designed to create a single gas market within the European Union.[6] Some of the gas imported from Spain would also be stored at caverns in the salt dome formations of Carriço, Portugal for potential use in a future emergency.[5][7]

The European Network of Transmission System Operators for Gas (ENTSOG) refers to the project using the project code "TRA-A-283". Together with "TRA-N-168" (Zamora-Barbolla-Adradas Gas Pipeline) it is a part of the "WEST 02" project group which is the first stage of the 3rd Interconnection between Portugal and Spain project.[8][5]

The European Union's 2021-2030 National Energy and Climate Plan for Portugal states that the Celorico–Vale de Frades gas pipeline is directly dependent on completion of the South Transit Eastern Pyrenees (STEP) Gas Pipeline between France and Spain.[9] However, the latter project was canceled in early 2019[10], leaving the future of the Celorico–Vale de Frades project unclear.[6]

The European Network of Transmission System Operators for Gas (ENTSOG) Ten-Year Network Development Plan (TYNDP) published in November 2020 notes in its Project Details Annex that, since the last TYNDP, REN Gasodutos is predicting a three year delay to the anticipated project schedule. This is in part due to a rejection in 2018 of the project's environmental impact assessment by the Portuguese national environmental authority. As a result, the company is required to: adjust the initial route, though maintaining the same point of interconnection with Spain; prepare a new Front-End-Engineering Design (FEED), and; restart the environmental permitting process.[11]

However, the 2022 updated version of the ENTSOG TYNDP features this project as a Hydrogen-ready pipeline for carrying green hydrogen and other renewable gases.[12] The pipeline is part of the HyDeal Espana project, which features a green hydrogen supply chain with 4.5 GW of electrolyzers powered by dedicated solar farms in central Spain will produce around 200,000 mt/year of hydrogen.[13]

This project is listed in ENTSOG's Ten-Year Network Development plan as a hydrogen-ready pipeline.[2] It is also part of the European Hydrogen Backbone.[1]

Articles and resources


  1. 1.0 1.1 [ehb.eu "The European Hydrogen Backbone (EHB) initiative"]. European Hydrogen Backbone. Retrieved Oct 31st, 2022. {{cite web}}: Check |url= value (help); Check date values in: |access-date= (help)CS1 maint: url-status (link)
  2. 2.0 2.1 "TYNDP | ENTSOG". www.entsog.eu. Retrieved 2022-10-31.
  3. "Diversification of gas supply sources and integration of gas infrastructure in the Three Seas Region". 3 Seas Initiative. Retrieved Oct 31st, 2022. {{cite web}}: Check date values in: |access-date= (help)CS1 maint: url-status (link)
  4. "HyDeal España, the world's largest integrated renewable and competitive hydrogen hub | ArcelorMittal". corporate.arcelormittal.com. Retrieved 2022-10-31.
  5. 5.0 5.1 5.2 REN Gasodutos, S.A., ENAGAS, S.A. (2018). "3rd Interconnection between Portugal and Spain" (PDF). ren.pt. Retrieved September 21, 2020.{{cite web}}: CS1 maint: url-status (link)
  6. 6.0 6.1 "South Gas Regional Investment Plan 2019" (PDF). Enagás, GRTgaz, Reganosa, REN Gasodutos, Térega. Retrieved September 24, 2020.{{cite web}}: CS1 maint: url-status (link)
  7. "Underground Storage". REN. Retrieved September 23, 2020.{{cite web}}: CS1 maint: url-status (link)
  8. ENTSOG TYNDP 2020 - Annex A - Projects Tables, ENTSOG, accessed Nov. 29, 2021.
  9. "PORTUGAL: NATIONAL ENERGY AND CLIMATE PLAN 2021-2030 (NECP 2030) (p. 47)" (PDF). European Union. December 2019.{{cite web}}: CS1 maint: url-status (link)
  10. "Future of the MidCat project in limbo". South EU Summit. February 5, 2019.{{cite web}}: CS1 maint: url-status (link)
  11. Ten-Year Network Development Plan 2020: Annex A – Project Details, European Network of Transmission System Operators for Gas, accessed Dec. 22, 2020
  12. "TYNDP | ENTSOG". www.entsog.eu. Retrieved 2022-06-30.
  13. "INTERVIEW: HyDeal Espana targets Q3 for final investment decision on Spain hydrogen project". Retrieved 2022-10-31.