Who are we?

Storengy

Storengy, an ENGIE subsidiary, is one of the world leaders in underground natural gas storage. The company has 21 sites in France, Germany and the United Kingdom.    

With 70 years of experience in exploring and exploiting the subsoil, it is working to transform its storage facilities to accommodate 100% renewable gases and is mobilising its skills to develop hydrogen storage infrastructures.    

Its local roots enable Storengy to take concrete action on environmental, economic and social issues, for the benefit of local communities.  

Storengy also applies its expertise to industrial and energy storage projects in France and abroad. 

Our ambition

We want to become the European reference in hydrogen and biomethane storage. Through our industrial know-how and our ability to innovate, we want to guarantee security of supply and provide the flexibility and reliability that are essential to tomorrow's energy system.

With a strong focus on cooperation and developing our key areas of expertise, we want to work with our stakeholders to build industrial solutions and services that will help them accelerate their energy transition. 

Key figures

  • 1st

    opérateur de stockage souterrain de gaz naturel en Europe

  • 21

    underground storage sites in Europe

  • +1000

    employees

  • 70 years'

    experience in developing energy solutions

  • +600

    wells drilled

Our underground storage sites

Map of underground storage sites in Europe, identifying three types of facilities:

  • Aquifer storage (yellow markers)
  • Salt caverns (purple markers)
  • Depleted reservoirs (red markers)

The indicated sites are:

United Kingdom

  • Stublach — salt cavern

Germany

  • Harsefeld — salt cavern
  • Lesum — depleted reservoir
  • Peckensen — salt cavern
  • Uelsen — depleted reservoir
  • Schmidhausen — depleted reservoir
  • Fronhofen — depleted reservoir

France

  • Gournay-sur-Aronde — aquifer storage
  • Germigny-sous-Coulombs — aquifer storage
  • Beynes — aquifer storage
  • Trois-Fontaines-l’Abbaye — depleted reservoir
  • Cerville — depleted reservoir
  • Etrez — salt cavern
  • Hauterives — salt cavern
  • Tersanne — salt cavern
  • Manosque* — salt cavern (50% participation and site operation)
  • Céré-la-Ronde — aquifer storage
  • Chémery — aquifer storage
  • Soings-en-Sologne — aquifer storage
  • Saint-Illiers-la-Ville — aquifer storage
  • Saint-Clair-sur-Epte — aquifer storage (reduced activity)

A note indicates that some sites, particularly Soings-en-Sologne and Saint-Clair-sur-Epte, are currently operating at reduced activity.

Underground storage sites

Our underground storage projects

Map showing natural gas storage sites and hydrogen storage projects in Europe, along with associated infrastructure.
The legend identifies three elements:

  • Existing natural gas storage — purple marker
  • Hydrogen (H₂) storage projects — red circle
  • Hydrogen infrastructure — orange lines

The indicated sites are:

United Kingdom

  • Stublach — existing natural gas storage site, connected to the HyNet hydrogen project

Germany

  • Harsefeld — natural gas storage site
  • Lesum — natural gas storage site
  • Peckensen — natural gas storage site
  • Near Peckensen — SaltHy hydrogen storage project

France

  • East area - Storgrhyn programme (hydrogen storage project)
  • Hauterives — natural gas storage site
  • Tersanne — natural gas storage site
  • Manosque — natural gas storage site, connected to the GeoH₂ hydrogen storage project
  • Etrez, natural gas storage site, involved in the HyPSTER hydrogen storage project

Orange lines indicate hydrogen infrastructure.

Underground storage projects