Eurobar for offshore integration

24.06.2020

Those involved in European electricity transmission have clearly understood that the common climate targets up to 2050 call for suitable and forward-looking concepts already today. Although the control area of TSCNET shareholder Amprion is not directly bordering a seashore, the German transmission system operator (TSO) shares nonetheless responsibility for transporting green electricity generated offshore to the consumption centres. Amprion thinks in a pan-European dimension and has developed a concept to integrate offshore electricity into the European power grid in a way that makes an optimal contribution to the European climate goals: The European Offshore Busbar (Eurobar) responds to the fact that the North Sea countries alone want to exploit an offshore potential of around 200GW by 2050.

The concept provides for the new generation of offshore facilities in the North Sea to be designed for connection to an offshore grid already during the early planning stage. Later, they can be gradually interconnected – first at national level and then between the North Sea countries. Through this integration, wind power can be transported flexibly and across borders to where it is needed, thus increasing efficiency and reducing costs as well as the need for additional grid expansion onshore. Dr Hans-Jürgen Brick, CEO of Amprion, emphasises the key role of the trans-European integration of offshore wind power for the future climate-neutral energy system: “Eurobar aims to make a constructive contribution to European plans for offshore development.”

Amprion has benefited from the advantages of an integrated power system for many decades and now, with Eurobar, intends to transfer this integration concept to the offshore grid to create an overall system for onshore and offshore energy. “Eurobar will intensify European collaboration in offshore development,” believes Dr Klaus Kleinekorte, CTO at Amprion. Peter Rüth, the CFO of the TSO, adds: “Eurobar is designed as a partnership.” Consequently, the implementation can be carried out by the respective partners, be it states or grid operators, autonomously. The only condition is, that the technical standards yet to be developed are applied when installing future offshore systems. “We will now be working together with our partners in industry and among network operators on resolving the technical issues and advocating standardisation on a European level,” concludes Rüth.

Amprion has presented the Eurobar concept for integrating European offshore systems (picture: Amprion)

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Preparations for market inclusion of COBRAcable

15.03.2019

COBRAcable will be the first direct link between the electricity markets of Denmark and the Netherlands. It is a joint project of the two transmission system operators (TSOs) and TSCNET shareholders Energinet from Denmark and TenneT, the Dutch-German TSO. By increasing the exchange of surplus wind energy, the DC interconnector is to improve the cohesion of the European transmission system and the integration of the electricity market. COBRAcable also makes a sustainable contribution to the low-carbon energy future by providing the opportunity to hook up future North Sea offshore wind farms to the connection. The entire cable route comprises 329km, of which 307km are offshore and 22km onshore. Since two cables are laid in parallel, the total length of the cables is 658km.

COBRAcable reached the Dutch shore at the Eemshaven connection point in November 2018 and will be commissioned this year. Now the two TSOs are preparing the commercial operation of COBRAcable scheduled for the third quarter of 2019. The concrete measures are the inclusion of COBRAcable in the day ahead and intraday market coupling systems on 16 April 2019 and in the market coupling results on the following day, each with an allocated capacity of zero. The objective of this is to test the relevant IT systems and prepare for a successful launch of commercial operations later in the year.

Energinet and Tennet carry out a test inclusion of COBRAcable in the market coupling (picture: screenshot taken from video “COBRAcable kommer i land ved Eemshaven”, Energinet – Vimeo)

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