Swedish-Polish HVDC Link
Hydropower normally accounts for 60 per cent of the electricity supply in the Nordic countries. Poland’s electricity supply is almost entirely based on coal-fired power stations.
Linking the two power systems together with 250 km of cable means that the use of resources in both countries will be more efficient. Hydropower from Sweden will be exported to Poland in years with high rainfall and import of coal power from Poland to Sweden in years with low rainfall. Also, the difference between the two countries’ electricity consumption during the day can be evened out.
Engineering and consulting services
Vattenfall Power Consultant services have included project management, pre-studies, system studies, tender documents, evaluation and contract negotiations for route survey and inspection of route survey and other services like:
- Tender documents for converter and cable
- Tender evaluation for converter and cable
- Contract negotiations for converter and cable
- Design review of cable, converter station, equipment and auxiliaries
- Supervision in testing, manufacturing and installation of cable, converter station, terminal towers, equipment and auxiliaries
- Training/seminars in basic design, construction, test, commissioning and maintenance of the HVDC link
- Technical assistance to the owner after commissioning including: 11 cable repair and participation in semi-annual after sales meetings with the Contractor to agree on correction of guarantee issues and technical shortcomings
Further on the link is one step towards an interconnected power transmission network for the Baltic Sea area – the Baltic Ring.
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