German TSOs publish GDPs

03.03.2016

The four German transmission system operators (TSOs), TSC members 50Hertz, Amprion, TenneT Germany, and TransnetBW, published the second drafts of both the Power Grid Development Plan 2025 and the Offshore Grid Development Plan 2025, presented to the German Federal Network Agency. The TSOs expect investment costs of up to €44bn (on- and offshore grid added together) by 2025. The documents in German can be downloaded for free (www.netzentwicklungsplan.de).

> See German TSOs’ press release, in German (pdf, 134kb)

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Ministerial approval for CGS

06.02.2016

Together, TSC members Energinet.dk, the Danish transmission system operator (TSO), and 50Hertz, one of the four German TSOs, plan to build an 400MW interconnection between the Eastern Danish and German electricity grids via the Baltic Sea. Now the Danish Minister for Energy, Utilities and Climate has approved Energinet.dk’s investment application.

It is the world’s first interconnection between two countries that also connects two countries’ offshore wind farms. The unique so-called combined grid solution (CGS) will connect the Danish offshore wind farm Kriegers Flak to the submarine cables running from the German side to the two German offshore wind farms Baltic 1 and 2.

> See Energinet.dk press release (html)

Illustration: 50Hertz/Energinet.dk

 

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COBRA contracts signed

01.02.2016

TSC members Energinet.dk, the Danish transmission system operator (TSO), and TenneT, the Dutch TSO, have signed contracts for the 700MW DC submarine cable and two onshore converter stations for the COBRA interconnection at the bottom of the North Sea between the Dutch and the Danish electricity grids. The €600m project with socio-economic benefits for both countries is expected to be completed at the beginning of 2019.

> See Energinet.dk press release (html)

> See TenneT press release (html)

Image showing a converter station using similar Siemens HVDC-Plus power modules (Source: TenneT)

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Realignment of DC responsibilities in Germany

28.01.2016

As a part of the national Grid Development Plan (GDP), the German transmission system operators (TSOs), TSC members 50Hertz, Amprion, TenneT Germany, and TransnetBW build new high voltage direct current (HVDC) connections to allow a long-range transmission with low electrical losses. Now the four TSOs came to a settlement to realign their responsibilities concerning the direct current transmission lines.

> See joint press release, in German (pdf, 49kb)

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Cost reduction by new cable design

27.01.2016

A newly developed power cable that helps to reduce costs significantly will be used by TSC member TenneT Netherlands, the Dutch transmission system operator (TSO) in a 9km-long underground section of the new Randstad 380kV North Ring between Vijfhuizen and Bleiswijk. The innovative cable using aluminium core was manufactured by the Delft office of Prysmian Group and passed the type test successfully last week.

> See TenneT Netherlands press release (html)

Image: Prysmian Group

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New German substation brought on stream

12.01.2016

Together with distribution system operator Avacon, TSC member TenneT Germany, one of the four German transmission system operators (TSOs), put the new substation Ohlensehlen northwest of Hannover in Lower Saxony into operation. The substation to ensure security of supply as part of the German energy transition has two 110/380kV transformers.

> See TenneT press release, in german (html)

Picture using the screenshot of a map provided by WebatlasDE (LGLN)

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“Meeting Croatian 2020 RES targets on good track”

18.12.2015

In their newsletter issued today, the Renewables Grid Initiative points to an interview with Damjan Međimorec, Executive Office Director at the Croatian Transmission System Operator HOPS, one of the members of TSC. Međimorec talks about the Croatian energy policy, the challenges in the course of the grid development, and other aspects of the country’s power transmission grid against the backdrop of the energy transition.

> See Renewables Grid Initiative interview (html)

Picture showing Zagreb (Nicolas Vollmer, Creative Commons)

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New HVDC technology for Ultranet

08.12.2015

Ultranet is a part of one of the three planned high-voltage direct current (HVDC) powerlines to run from the north to the south of Germany and therefore a mainstay of energy transition. TSC members Amprion and TransnetBW, two of the four German transmission system operators (TSOs), today have revealed the advanced technology behind the ULTRANET converter together with their technology partner Siemens. The converters at either end of the 340kilometre transmission line with their new “full bridge technology” will have a transmission capacity of 2,000MW each and are designed to make power transmission more secure and to lower power losses.

> See Amprion/TransnetBW press release in German (pdf, 33kb)

> See Amprion/TransnetBW press release in English (pdf, 134kb)

Picture (www.siemens.com/press): Eperts explaining the full bridge system for power lines

 

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Agreements for Dutch offshore grid

04.12.2015

Yesterday, the Dutch transmission system operator (TSO), TSC member TenneT, has signed framework agreements for five offshore platforms including 440MVA power transformers and both 66kV and 220kV gas insulated switchgear (GIS) systems. By the latest 2023, a total of 3,500 megawatts of new offshore wind energy is to be connected to the onshore high voltage grid.

> See TenneT Netherlands press release (html)

Picture using a publication by Grid Solutions, a General Electric and Alstom joint venture

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German express power

16.11.2015

The first segment of the new power line connecting the German federal states of Thuringia and Bavaria is ahead of schedule: According to a press release of TSC member 50Hertz, one of the four German transmission system operators (TSOs), transmission operations may already begin this year. The new line is designed to bring greater stability to the grid and help to save costs.

> See 50Hertz press release, in German (html)

Picture: 50Hertz

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