STORAG ETZEL GmbH

STORAG ETZEL GmbH

Friedeburg, Germany

HydrogenEnergy StoragePrivate company
Founded 1971201-500 employees
Profile last updated: August 13, 2026

About

Founded in 1971, STORAG ETZEL GmbH is a private company headquartered in Friedeburg, Germany with approximately 201-500 employees specializing in Hydrogen, Energy Storage.

STORAG ETZEL GmbH is Germany's largest independent provider of underground salt cavern storage capacity. Since 1971, the company has been constructing, operating and leasing caverns for bulk storage of crude oil and natural gas at the Etzel site in East Frisia, Lower Saxony. The company now focuses on converting existing caverns for hydrogen storage as part of the transition to a hydrogen economy in Germany and Northwest Europe. The Etzel facility, strategically located on the North German energy hub near Wilhelmshaven with deep-water port access, serves as a critical infrastructure asset for energy security. The H2CAST Etzel pilot project demonstrates the technical feasibility of large-volume underground hydrogen storage and tests operational procedures for future hydrogen market development.

Headquarters

Friedeburg, Germany

Founded

1971

Employees

201-500

Company type

Private company

Focus areas

hydrogen storagesalt cavernsenergy transitionunderground storagecavern operationshydrogen economyGermanyinfrastructure

Products & services

Business models

B2BEPC

Value chain

DevelopmentEngineeringConstructionO&MConsulting

Service areas (2)

  • Hydrogen Storage Development

    Development and conversion of existing salt caverns for large-scale hydrogen storage, including above-ground processing facilities for gas purification, compression and quality monitoring.

  • Cavern Storage Operations

    Construction, operation and leasing of underground salt cavern storage facilities for energy raw materials and renewable energy storage.

Locations

Headquarters

Beim Postweg 2, 26446, Friedeburg, Germany

Service regions

GermanyNetherlandsNorthwest Europe

Projects

1

H2CAST Etzel

Under ConstructionHydrogen storage in salt caverns

Research and development pilot project demonstrating the feasibility of large-volume underground hydrogen storage in converted salt caverns. Involves conversion of existing oil and gas caverns for hydrogen storage, testing cavern operations, and developing infrastructure for a future hydrogen economy in Northwest Europe.

1 GW capacityFriedeburg, GermanyClient: STORAG ETZEL GmbH, Gasunie

Credentials & affiliations

Industry memberships

BDEW

Partnerships

Gasunie, DEEP.KBB GmbH, Hartmann Valves GmbH, SOCON Sonar Control Kavernenvermessung GmbH, Clausthal University of Technology, German Aerospace Center Institute of Networked Energy Systems

People

Management & team

  • Carsten Reekers

    Head of Cavern Operations and Head of H2CAST R&D Project

  • Boris Richter

    Commercial Director

  • Armin Garbe

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