Vattenfall builds underground rock cave for hydrogen storage
Vattenfall builds underground rock cave for hydrogen storage The pilot project aims to decarbonise steel and iron production Image: Shutterstock Swedish renewable energy company Vattenfall, steel firm SSAB and mining group LKAB have started building an underground rock cavern storage facility for ‘fossil-free’ hydrogen gas in Sweden. The 100 cubic metre hydrogen storage, which is expected to be operational from next year, is being built in a rock cave approximately 30 metres below ground. The so-called HYBRIT project aims to decarbonise iron and steel production and create a completely ...