Wärtsilä tests world’s first large‑scale 100% hydrogen engine to aid Spanish grid

Wärtsilä conducted a test of a large‑scale engine running on 100% hydrogen. The trial took place at the company’s Bermeo laboratory. The engine is intended to support the Spanish electricity grid. It represents the world’s first test of this scale on pure hydrogen. Successful results could boost renewable energy integration. The test demonstrates Wärtsilä’s commitment to decarbonisation. Industry analysts view the development as a milestone for hydrogen power. Further evaluations are planned before commercial deployment.