H2Pro and Doral Hydrogen to Develop Off-Grid Solar-to-Hydrogen Project in Spain

H2Pro and Doral Hydrogen have signed an agreement to jointly develop a solar-powered hydrogen production project in Extremadura, Spain, marking what the companies describe as the world’s first entirely off-grid solar-to-hydrogen facility designed for gas grid blending.

The agreement was announced during the European Hydrogen Energy Conference (EHEC). The project will initially deploy a 5 MW Decoupled Water Electrolysis (DWE) electrolyzer connected directly to 10 MWp of solar photovoltaic capacity. In later phases, the facility is expected to scale up to 50 MW of electrolysis capacity and up to 80 MWp of solar generation.

The hydrogen produced will be blended into the natural gas pipeline operated by Enagás. In a later stage, the project is expected to connect to the planned H2Med Hydrogen Pipeline, a hydrogen transport network designed to support Europe’s emerging hydrogen economy.

According to the companies, the facility will operate fully off-grid, producing hydrogen powered entirely by solar energy and meeting the European Union’s Renewable Fuels of Non-Biological Origin (RFNBO) requirements.

Tzahi Rodrig, CEO of H2Pro, said the project will demonstrate how hydrogen production can operate directly on intermittent renewable energy. He noted that the company’s Decoupled Water Electrolysis technology allows systems to operate flexibly with renewable power sources, enabling unlimited on-and-off cycles while maintaining efficiency.

Meanwhile, Yam Efrati, CEO of Doral Hydrogen, highlighted that producing green hydrogen without reliance on grid electricity can significantly simplify project design and reduce the need for expensive battery storage or grid backup, improving overall project economics.

Doral Hydrogen is currently developing 1 GW of green hydrogen projects globally, with a particular focus on the Iberian Peninsula. The companies said the project could serve as a model for integrating renewable hydrogen production with existing energy infrastructure.

The choice of Extremadura as the project location is driven by its high solar irradiation levels and favorable conditions for large-scale renewable energy development. Hydrogen produced at the site will support Spain’s growing hydrogen ecosystem while contributing to Europe’s broader energy security and decarbonization goals.