Renewable hydrogen

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What is renewable hydrogen?

Renewable hydrogen is an energy vector derived from renewable sources that releases zero CO2 emissions. It is mainly produced thanks to water electrolysis, which is a process involving the separation of the water molecule in hydrogen and oxygen by applying renewable electric energy. Additionally, there are other ways to obtain this energy including gasification, using biomass, and to a lesser extent photoelectrocatalysis.

The use of renewable hydrogen in conjunction with low-carbon liquid fuels is essential for decarbonization. Therefore, we continue to focus on developing technologies  at Repsol aimed at producing low-carbon hydrogen that will enable us to keep advancing the energy transition.

Main uses of hydrogen

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An in-depth look at renewable hydrogen

Renewable hydrogen will be used to produce synthetic fuels, conventional fuels, and in the long term it can also be used to supply the demand for hydrogen in the mobility industry. Once all its potential applications have been rolled out, it is estimated that renewable hydrogen could represent 10% to 20% of the world's energy consumption.

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?


Creating hydrogen from solar energy

Alongside Enagás, we have created a system for obtaining renewable hydrogen using solar energy, allowing us to reduce the carbon footprint by more than 90% compared to the conventional process by means of methane reforming. Some of the institutions working with us include the Catalan Institute for Energy Research, the University of Alicante, Magrana and the Aragon Hydrogen Foundation.

More about the project (Only available in Spanish) | PDF | 365 KB

Snowy mountains

Zero net emissions by 2050

We are the first energy company to take on the commitment of reaching net zero emissions by 2050.