Kölleda electrolyzer

Hydrogen supply chain solutions

Steel production

Chemicals and materials

Gas infrastructure company involved in transmission network development.

Injecting hydrogen into existing natural gas networks, allowing for a gradual transition to cleaner energy sources without immediate infrastructure overhauls.

A type of electrolyzer technology that uses a Proton Exchange Membrane, known for its nimbleness and suitability for blending with green power.

Underground storage in natural salt formations carved through solution mining, located 200–1,500 meters deep. These caverns provide gas-tight, pressure-sealed vaults ideal for long-term hydrogen storage.

Lower Saxony

Germany's largest operational underground hydrogen storage project injecting green hydrogen into two 300,000m³ salt caverns at the Etzel facility in Lower Saxony. The pilot phase began in Q2 2025 with an initial 90-tonne injection using a 2% hydrogen blend in existing pipelines.