The Spanish natural gas grid operator, Enagas, has signed an agreement with French counterparts, GRTgaz and Terega, to develop a multi-billion-euro underwater pipeline for carrying hydrogen between Spain and France. This collaboration is a part of Europe's efforts to transition to a low-carbon-emission economy. The pipeline, named BarMar, is expected to cost 2.5 billion euros and is a crucial component of the broader H2MED plan for establishing hydrogen infrastructure from the Iberian peninsula to France and Central Europe. The agreement outlines terms for conducting feasibility studies, final investment decision conditions, and the formation of a company to potentially execute the project, with Enagas holding a 50% stake while GRTgaz and Terega holding 33.3% and 16.7% respectively. Additionally, German gas grid operator Open Grid Europe has also joined the collaboration. Enagas further cemented its commitment to green hydrogen by signing an agreement with Portugal's REN to strengthen their partnership in developing green hydrogen pipelines within the Iberian peninsula. This initiative signifies a significant step towards achieving a more sustainable and interconnected energy infrastructure within Europe.