• Spain's ecological transition ministry is using an urgent permitting procedure to cut approval timelines in half for four pipeline sections totalling 234 km and costing €389 million [$437.8 million USD], after the developers of three hydrogen projects asked for the relevant pipeline sections to be prioritised.
• The four sections are linked to Moeve's 300 MW Onuba project in Huelva, the 500 MW Catalina project in Teruel, and Repsol's 100 MW Petronor project in Bizkaia, and form part of Spain's national hydrogen backbone feeding into the H2Med corridor.

Four Pipeline Sections, Three Projects

Spain's ministry for ecological transition has launched urgent permitting procedures for four sections of the national hydrogen backbone, all developed by Enagas. The fast-track process cuts permitting deadlines in half, though each section still requires a separate environmental impact assessment and public consultation periods for those assessments will not be shortened. Construction is expected to take between eight months and one year per section depending on location.

The four sections and their costs:

Huelva–Aznalcázar (59 km) — €95.7 million [$107.7 million USD]. Linked to Moeve's Onuba project, a 300 MW electrolyser in Huelva, Andalusia, on which Moeve broke ground on September 17. This section opens the Huelva–Almendralejo segment of the future hydrogen grid.

Caspe–Tivissa (75 km) — €98.6 million [$111 million USD]. Linked to the 500 MW Catalina electrolyser project in Teruel, Aragon, led by a joint venture between Copenhagen Infrastructure Partners and Enagas Renovable. A final investment decision on Catalina has not yet been taken.

Tivissa–Tarragona industrial estate (62 km) — €126.5 million [$142.4 million USD]. Also linked to the Catalina project, extending toward the Tarragona coast.

Muskiz–Arrigorriaga (38 km) — €68 million [$76.5 million USD]. Linked to Repsol's 100 MW Petronor electrolyser in Bizkaia, Basque Country. Repsol took a final investment decision on the project in January 2026 and is targeting operation in 2029. The electrolyser was ordered from Sunfire.

Developers Requested Faster Permitting

The ministry said it was applying the urgent procedure specifically because hydrogen developers had asked for the relevant sections to be prioritised so they could bring forward their own investment decisions. Two of the three hydrogen projects — Onuba and Petronor — have received final investment decisions. Catalina has not.

Access and Regulatory Framework

The sections will initially operate under negotiated access arrangements and will not receive regulated remuneration from Spain's gas system. Their economic and access framework will later be adjusted to Spain's implementation of the EU hydrogen and decarbonised gas package.

More Sections Coming

The four fast-tracked sections are the first of a broader backbone. Enagas is expected to seek consent for further sections shortly, including links between Mérida and Salamanca, Salamanca and León, León and Llanera, Llanera and Reocín, Arrigorriaga and Haro, Haro and Zaragoza, Tivissa and Salzadella, and others. The full backbone feeds into the H2Med corridor connecting the Iberian Peninsula with Central Europe.

Source:   FCW Team