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ENGIE x Masshylia - France


How can an industrial site reduce its carbon footprint and become a role model using renewable hydrogen?

By ENGIE - 01 March 2021 - 16:28

To reduce the carbon footprint of its La Mède biorefinery, TotalEnergies is partnering with ENGIE. Together, they are launching the Masshylia project, intended to become the first French site for the production of renewable hydrogen on an industrial scale. 


The Masshylia solution: to use renewable hydrogen on an industrial scale to continuously produce biofuels.

From 2024, Masshylia will produce its first green hydrogen. A first important step towards meeting France's low-carbon energy mix ambitions.

What is this new solution? Installed in the heart of TotalEnergies's biorefinery at La Mède in the southern Provence-Alpes-Côte d'Azur region in the south of France, a 40 MW electrolyser, supplied with electricity by solar farms with an overall capacity of more than 100 MW and complement of electricity coming from the grid, will produce an average of 15 tonnes of green hydrogen every day to meet the plant's biofuel needs.

How is this project innovative? The project is ground-breaking in a number of ways: thanks to large-scale storage and the implementation of an energy management system, it will be able to overcome the issue of intermittent solar electricity production and increase project competitiveness. This will guarantee a continuous supply of hydrogen to the biorefinery. The project also includes several photovoltaic farms that will optimise the power supply to the electrolyser.
These innovations make Masshylia a role model for industrial decarbonisation that is unique in Europe.  


An internationally reproducible hydrogen ecosystem

In addition to the biorefinery's own energy needs, the hydrogen produced will be able to serve the needs of the industries surrounding Fos-sur-Mer (Marseille) and local transport and service projects (road, sea and rail).  
Masshylia thus paves the way for a reproducible hydrogen ecosystem, on an industrial and multi-purpose scale, that will contribute to the development of the area while also having an international reach thanks to its proximity to the Mediterranean.

The partners plan to have the plant up and running in the end of 2024.




Key figures

  • An average of 15 tonnes of green hydrogen produced every day by a 40 MW electrolyser.
  • > 100 MWp of total capacity for the solar farms and complement of electricity coming from the grid supplying power to the site
  • 33,500 tonnes of CO2 emissions avoided per year, i.e. the annual CO2 consumption of 3,045 people in France.



Find out more

Press release


* Subject to obtaining financial support and authorisation from the relevant competition authorities.