Renewable hydrogen: An alternative for reducing emissions.

What is renewable hydrogen?

Renewable hydrogen is an energy vector derived from renewable sources that has zero CO2 emissions. The use of hydrogen in conjunction with low-carbon liquid fuels is essential for decarbonization.

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  • Renewable and low-carbon hydrogen could together make up between 10 and 20% of the global energy consumption
  • Renewable hydrogen and CO2 will be the raw materials used in the synthetic fuels that will be produced by Repsol in Bilbao.
  • Synthetic fuels produced with renewable hydrogen will be essential for decarbonizing sectors that are difficult to electrify, such as maritime or air transportation.
  • Repsol is developing its own technology to produce renewable hydrogen from water and solar energy.

How do we produce renewable hydrogen?

There are many ways to produce renewable hydrogen. One of the most common technologies used is eletrolysis from water, which is a process involving the separation of the water molecule in hydrogen and oxygen by applying renewable electric energy, but there are other alternatives. At Repsol, we produce it from solar energy and using biomethane.

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Through solar energy

We created a system, along with Enagás, to obtain renewable hydrogen through solar energy, which allows us to reduce the carbon footprint up to 90% compared to the conventional process of reforming methane.

The Catalonia Institute for Energy Research, the University of Alicante, and the Aragon and Magrana Hydrogen Foundation are among the entities that collaborate with us on this project.

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From biomethane

The biomethane used as raw material was obtained from municipal solid waste. By doing so, we continue to promote the circular economy and cutting-eduge technology to transform waste into low-carbon, value-added products.

In this way, we take a first step toward substituting conventional natural gas for sustainable biomethane to produce renewable hydrogen in our industrial facilities and that way decarbonize both our processes and our products.

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An in-depth look at renewable hydrogen

Elena Verdú, Process Development Senior Scientist at the Repsol Technology Lab, explains what renewable hydrogen is all about. Do you know what it is and how it’s produced?

Vista de un lago y el cielo en un terreno montañoso

Net zero emissions by 2050

Our ambition is to become a leader in renewable hydrogen production on the Iberian Peninsula and hold an important position in the European market.