en.Wedoany.com Reported - Wärtsilä has initiated the validation of a 100% hydrogen engine in Bermeo, northern Spain, which the company claims is the world's first large-scale demonstration of a pure hydrogen engine connected to a national grid. The trial is positioned as a key step in proving that engine technology can operate on fully sustainable fuels and provide dispatchable power when wind and solar output decline.

The engine used in this test is the Wärtsilä 31H2, part of the Wärtsilä 31 platform series, which the company describes as the world's largest pure hydrogen engine. Wärtsilä states that this demonstration builds on its previously launched large-scale hydrogen-ready engine power plant, showcasing the pathway from hydrogen readiness to actual hydrogen operation.

Wärtsilä notes that as the share of variable renewable energy in the grid continues to rise, the demand for flexible capacity to quickly respond to peak demand or periods of low renewable generation increases. Hydrogen engines can fill this gap while avoiding carbon emissions from combustion.

The company also states that the Bermeo site is an ideal testing ground, as Spain has a strong renewable energy base and is seeking ways to reduce its exposure to fossil fuel volatility. The technology is positioned for grid support, industrial power, and other applications requiring reliable low-carbon backup.

Rasmus Teir, Director of Technology Strategy and Decarbonization at Wärtsilä, stated that the technology is mature and now requires an appropriate regulatory and investment environment to drive large-scale deployment.

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