Green Datahub – consisting of two data centres – are known as co-location data centres and are used by multiple customers to run their own servers in a suitable, secure environment.

The existing data centre is working to capacity, with predominantly long-term rental contracts. Increased demand from existing customers forms the basis for the expected utilisation of the new data centre from 2023, with additional customers already signed up. The new data centre will feature state-of-the-art security, providing extremely high levels of security and availability. Energy efficiency is a key priority. The existing data centre uses electricity exclusively from renewable sources: the surplus thermal energy generated by the servers is used to heat a sports hall. It is the first co-location data centre to be awarded the “Blue Angel” environmental label by the German Federal Environment Agency. Energy consumption is about one-third below average, and further improvements are being sought for the new data centre being developed.

Due to increased digitalisation of more and more areas of the economy and life in general, the demand for data centre capacity is increasing enormously – it is expected to triple between 2020 and 2025 alone. Demand is also driven by the regional economic structure: for critical services, customers tend to prefer using data centres nearby. Hamburg is considered an attractive market – due, in part, to the city's economic focus on e-commerce and logistics. Hamburg is also one of the main media and IT locations in Germany.