Synthetic fuels
Synthetic fuels made from renewable hydrogen and CO2
We are committed to a circular model in which CO2 and renewable H2 are used to produce synthetic fuels.
As a result of the collaboration between Repsol, Petronor, and Saudi Aramco, the plant will boast a production capacity of 8,000 liters per day of low-carbon footprint fuels and will be located in the port of Bilbao. This demo plant, which is in its first phase of development, is scheduled to begin construction by the end of 2024.
Synthetic fuels in figures:
Synthetic fuels in figures:
8,000
liters/day of
low-carbon footprint fuels.
6.7
Mt of CO2
captured/year.
How do we produce synthetic fuels?
We use renewable hydrogen and CO2 to produce synthetic fuels. The hydrogen is obtained from the water molecule by using electrolysis with renewable energy, and the CO2 is captured at the Petronor refinery.
The main innovation of the project is to manage to create syngas (CO+H2) from H2 and CO2, generating water as a by-product. Next, we use the latest advances in existing technologies to create gasolines or kerosenes from syngas.
Synthetic fuels are, from the chemical point of view, identical to those currently used in combustion engines, and can therefore use the existing infrastructure and logistics network. These fuels have different final applications, such as aviation fuel, renewable diesel, and naphthas.
Circular benefits
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We remove CO2 from the atmosphere, transforming a pollutant into a raw material.
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We displace the use of fossil raw materials.
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We manufacture products with a low- or zero-carbon footprint as we forge ahead with our commitment to become net zero by 2050.
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We use renewable energy in our processes.
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We offer a decarbonization alternative to sectors that can't be currently electrified such as long-distance, maritime, and air transportation.
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We promote the adoption of new technologies and production models.
Discover more
Learn more about our strategy and the goals we've set.
Updated as of August 2026