Spain: Molins has received permits from the Generalitat de Catalunya to begin operating an auxiliary hydrogen generation facility at its Sant Vicenç dels Horts cement plant in Barcelona.

The producer will install a hydrogen production module based on water electrolysis, using water from subway catchments. The system includes osmosis treatment to purify the water prior to splitting it into hydrogen and oxygen using renewable electricity. The hydrogen will be consumed directly as fuel in the clinker kiln, replacing part of the petcoke currently used to reduce CO₂ emissions.

Molins forecasts hydrogen consumption of 305t/yr and expects to cut CO₂ emissions by 3600t/yr. The company said the project supports its Sustainability Roadmap 2030, which targets a 20% reduction in emissions by 2030 compared to 2020.