Subject to further regulatory approvals, dCarbonX proposes to develop the Gateway salt caverns in modular economic steps, synchronised with the market, for future hydrogen offshore storage with an estimated total energy storage capacity potential of some 9 TWh, providing a major boost for the UK's decarbonisation plans in the decades ahead.

dCarbonX is a subsidiary of Snam, a European operator in gas infrastructure, focusing on transportation, with a network exceeding 40 000 km across Italy and abroad; in storage, holding one-sixth of the European Union's entire storage capacity (around 18 billion m3); and in regasification, where it currently ranks as the third largest European player, managing (or co-managing) an annual capacity of 28 billion m3.