# Bizkaia hydrogen pipeline development

> Live situation record from CLSTR: https://clstr.news/situations/bizkaia-hydrogen-pipeline-development
> Updated: 2026-10-09T16:38:26.000Z. Sources: 5. Developments: 2.

In Bizkaia, Enagás is seeking authorization for a 38-kilometer hydrogen pipeline project connecting Muskiz and Arrigorriaga. The approximately 68 million euro infrastructure, which includes a branch to the Port of Bilbao, is designed to serve Petronor’s 100-megawatt electrolyzer. The project utilizes 30-inch steel tubing and is being processed via an accelerated track to reduce environmental impact assessment timelines.

The development has faced scrutiny regarding land use and local opposition. Affected landowners have been granted windows to object to expropriations and easements, as the pipeline will impose permanent restrictions on activities like plowing and planting. Additionally, the Stop Variante Las Karreras platform has gathered nearly 1,000 signatures against the project, citing concerns over shortened participation windows, proximity to residential areas, and potential ecological impacts on the Barbadun marshes and estuary.

## Timeline

### 2026-10-09: Enagás and Petronor advance hydrogen pipeline project in Bizkaia

Enagás and Petronor are pushing for a 38km hydrogen pipeline in Bizkaia, facing local opposition over environmental concerns and an accelerated approval process.

3 sources. https://clstr.news/cluster/enags-and-petronor-advance-hydrogen-pipeline-project-in-bizkaia

### 2026-09-30: Bizkaia infrastructure: Hydrogen pipeline and tunnel noise issues

Infrastructure projects in Bizkaia advance as Enagás moves forward with a 68-million-euro hydrogen pipeline and Interbiak seeks temporary noise limit suspensions for the Lamiako subfluvial tunnel works.

2 sources. https://clstr.news/cluster/bizkaia-infrastructure-hydrogen-pipeline-and-tunnel-noise-issues

---
Cite as: Bizkaia hydrogen pipeline development. CLSTR, https://clstr.news/situations/bizkaia-hydrogen-pipeline-development