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Generating hydrogen and e-methane

We are developing solutions for producing synthetic hydrogen and methane.

storengy - Generating hydrogen and synthetic methane

Storengy and industrial companies

Find out more about our innovative storage solutions and carbon-free energy

Are you looking to reduce your industrial CO2 emissions and green your energy consumption and vehicle fleet?

We can offer you:

  • a turnkey, reliable and project-specific solution at the best possible cost;
  • renewable hydrogen produced close to where you need it instead of grey hydrogen transported by truck over long distances;
  • the ability to pool hydrogen use with other needs (mobility, methanation, etc.);
  • co-investing with you if necessary.

Storengy and local authorities

Are you interested in efficient transport solutions with reduced CO2 emissions using hydrogen mobility and bio-Natural Gas for Vehicles (trains, buses, vehicle fleets, bicycles, etc.)?

Our experts will offer you:

  • customised support and a turkey solution tailored to each project;
  • the best possible cost by pooling hydrogen use with other needs (industry, methanation, etc.);
  • renewable hydrogen produced close to where you need it instead of fuels (diesel or petrol) transported by truck over long distances;
  • co-investing with you if necessary.

Storengy and H2 industry players

Are you looking for a committed partner with hydrogen expertise?

We can offer you:     

  • our positioning as an expert integrator, operator and project manager (including complex projects); 
  • the guarantees you need to respond to calls for tender.

Feel free to contact us: Our experts will get back to you in no time.

My Energy Hub: enhancing your region’s potential

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Storengy as project investor and integrator

The ENGIE Group is one of the few operators with all the expertise required to develop hydrogen solutions in response to the challenges of global energy transition. We undertake large-scale projects involving the production and storage of hydrogen and synmethane.

Storengy as producer and storer

With almost 70 years of experience in the development and operation of underground natural gas storage facilities, Storengy has all the expertise needed to implement projects involving the production and storage of renewable hydrogen and synmethane.

  • Surface expertise in the production and storage of H2 and/or synmethane
    • Feasibility studies and integration
    • Technological expertise:
      • Electrolysis or H2 recovery treatment 
      • Methanation
      • Surface storage
      • Compression, treatment, purification
      • Flexibility
    • Technical and economic optimisation
    • Detailed engineering
    • Project management support
    • Project management/Delivery
  • Expertise in underground H2 storage
    • Geoscience
    • Wells/Drilling
    • Storage
  • Operations & Maintenance
  • Sales & Marketing
  • Industrial safety
    • Compliance with safety standards
    • Permitting applications
    • Seveso sites

Generating hydrogen and synmethane


Transforming power from renewable energies into gas that is also renewable

Today, more than 90% of global hydrogen production comes from fossil fuel sources, especially in the chemical and petrochemical industry.Though cost-effective, the process (methane reforming) also emits high levels of CO2. In keeping with an approach based on gradual decarbonisation of the global economy, the production of renewable hydrogen via water electrolysis is proving to be a particularly attractive alternative, for two reasons. First, electrolysers are powered with electricity generated by renewable energies (solar and/or wind) so there are no greenhouse gas emissions. Second, the hydrogen generated can be stored and redistributed in due course. This is known as PowertoGas.

Providing flexibility to the energy system

Power from renewable energies, such as wind or solar, depends on the weather. In good weather, production can exceed local demand, i.e. the standard storage capacities of the power system.Power‑to‑Gas allows for conversion to another form of energy and seems to be a solution that offers the energy system the flexibility required to increase the use of renewable energies.

Innovation and performance 

In February 2019, Storengy becomes a shareholder of Electrochaea, a major player in methanation on the Power-to-Gas market in Europe but also in the US. 

Electrochaea provides Storengy with a reactor in which hydrogen is combined with CO2 to produce synthetic methane by a biological methanation process. The advantage of this solution is that it does not require high temperatures to operate. Storengy is convinced that the Power-to-Gas market needs flexible installations, i.e., installations that can start and stop at any time to cope with variations in electricity production and consumption. The Electrochaea reactor therefore offers this flexibility, not needing high temperatures to be activated. 

Storengy's role in this collaboration 

As operators and integrators, we master and support the entire Power-to-Gas process, from electrolysis to the final contracting stage with renewable energy consumers. By leveraging our complementary skills with Electrochaea, we have the opportunity to become leaders in a growing market.