Denmark's TSO Energinet.dk has awarded Siemens Power Transmission and Distribution (PTD; Erlangen, Germany) an order to supply the high-voltage direct-current (HVDC) converter stations for the Storebælt project, which links the islands of Fuen and Zealand. The 600-MW HVDC link will allow access to reserves from other pats of the country, thereby increasing the robustness of the power supply in Denmark and reducing requirements for reserves in the Danish electricity supply. The link is scheduled to go into operation April 2010 and will connect the Western with the Eastern Grid.

The order includes the supply of the HVDC converter technology, the design of the HVDC converter stations and delivery of the bulk of the core components, such as converter valves, converter transformers, smoothing reactors, protection and control systems. The Danish provider will supply the AC stations, the valve halls as well as the service buildings. The approximately 56-km (35-mile)-long cable between the two converter stations is covered in a separate contract.

The new long-distance HVDC transmission link is the seventh system of its kind in Denmark.