Flow-based market coupling ready for Core CCR

18.04.2019

The European Commission Regulation on Capacity Allocation and Congestion Management (CACM) specifies the implementation of Flow-Based Market Coupling (FBMC) for day-ahead electricity trading in the Core Capacity Calculation Region (CCR) comprising Austria, Belgium, Croatia, the Czech Republic, France, Germany, Hungary, Luxembourg, the Netherlands, Poland, Romania, Slovakia and Slovenia. The Core CCR transmission system operators (TSOs) include twelve TSCNET shareholders: 50Hertz, Amprion, APG, ČEPS, ELES, HOPS, MAVIR, PSE, SEPS, TenneT, Transelectrica, and TransnetBW.

The partners of the Core FBMC project are to establish the coupling of all Core CCR borders by means of a Flow-Based Capacity Calculation Methodology (CCM) developed in accordance with the CACM Regulation. The market design for the FBMC implementation has now been finalised and FBMC is currently applied within the Single Day-Ahead Coupling (SDAC) in Central Western Europe (Austria, Belgium, France, Germany, Luxembourg and the Netherlands). The rest of the Core CCR is to follow.

Flow-Based Market Coupling in the Core CCR is ready for implementation

Linkup
> See Amprion press release (html)
> See APG market news release (html)
> See PSE press release (html)
> See TransnetBW news release (html)

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First Borssele cable ashore

17.04.2019

Last weekend, the first submarine cable from the Borssele Alpha transformer platform landed on the Dutch coast, marking a significant progress in connecting the Borssele offshore wind farm area in the southwest part of the Dutch North Sea to the onshore high-voltage grid of TSCNET shareholder TenneT. The Borssele grid connection is the first large-scale project of the Dutch-German transmission system operator (TSO) carried out under the Dutch National Energy Agreement for offshore wind farms.

The last section of the cable laying was quite critical due to the crossing of a ferry route, but during the closure of the shipping traffic everything went according to plan. After the landing of the submarine cable, its installation was continued ashore up to the newly constructed onshore transformer substation. In the coming weeks preparations will be made to connect the second submarine cable for the Borssele Alpha project to the transformer station.

The first submarine cable of the Borssele grid connection of TenneT has reached the coast (picture: TenneT)

Linkup
> See TenneT press release (html)

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Second draft of revised German GDP

16.04.2019

In early February of this year, the four German transmission system operators (TSOs) and TSCNET shareholders 50Hertz, Amprion, TenneT, and TransnetBW had submitted the first draft of the new 2019 version of their “Grid Development Plan (GDP) 2030” together with the Offshore GDP to the German Federal Network Agency. Both GDPs were also published for a four-week public consultation. The total of 906 comments and proposals on both GDPs have been incorporated into the second draft of the two GDPs, whenever purposeful and reasonable. This second draft has now been forwarded to the Agency and published on the joint GDP website.

While all the different scenarios of the GDP 2030 meet the official German target of 65 percent for renewable energies in gross electricity consumption, they differ in terms of technologies as well as storage and flexibility options. The TSOs respond in the GDP to the increase in the required transport capacity due to the gap in the German electricity market with the renewable generation mainly in the north and the consumption centres in the south and west. For the second draft of the GDP 2030, the TSOs have taken greater account of the possible German coal exit to ensure that the grid development measures identified in the scenarios are appropriate even in the case of an early and complete phase-out.

In all scenarios for 2030, the transmission capacity of the DC connections amounts to a total of 12GW, while the concrete figures for the need for grid reinforcements (2750 to 2800km) and new construction measures (1600 to 1700km) differ slightly. In the second draft of GDP, the TSOs carried out a cost-benefit analysis for a total of eight interconnectors and a reassessment of system stability. This analysis reveals a considerable need for reactive power compensation systems. As a result, the costs for onshore measures in scenario B 2030 increase from €52bn to €61bn compared to the first draft. The Network Agency will now evaluate the revised draft and adapt its own planning, which then must be confirmed by the Federal Government in the official Federal Requirements Plan.

The four German TSOs have published the second draft of the GDP 2030, version 2019 (picture: Amprion)

Linkup
> See 50Hertz press release (html)
> See Amprion press release, in German (html)
> See TenneT press release (html)
> See TransnetBW press release (html)
> Visit the GDP website (html)

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Record-setting offshore connection

09.04.2019

The IJmuiden Ver offshore wind farm project in the Dutch sector of the North Sea will be equipped with two onshore connections from 2024 to 2030. TSCNET shareholder TenneT, the Dutch-German transmission system operator (TSO), has announced to link the 6.1GW of the new offshore wind farms to the Dutch high-voltage grid via two 525kV DC cables with a capacity of 2GW – this will be the highest in the world. As a result of the increased capacity, only two instead of six cables will be required, resulting in lower costs, as well as less space requirements and environmental impact.

A total of four converter stations are required for the DC transmission, which prevents transport losses: two offshore converter platforms for converting the wind-generated AC into DC and two onshore converters for the reconversion. The 2GW connections are possible due to TenneT’s unique experience with HVDC grid connections in Germany, where TenneT will connect offshore wind farms with DC technology on a large scale. The TSO also uses the 525kV high voltage level for NordLink, the new international connection between Germany and Norway, as well as for the German onshore projects SuedLink and SuedOstlink.

TenneT has ambitious offshore plans, since the TSO has been commissioned by the Dutch government to connect a total of 9.6GW offshore capacity, of which 5.6GW will be realised with AC connections and 4GW with innovative DC connections. Together with the offshore wind farms already in operation, the offshore wind energy capacity is expected to reach 10.6GW in the Netherlands in 2030. Because of the considerable total capacity of IJmuiden Ver, the associated onshore connection is a core component of TenneT’s offshore grid development in the Netherlands.

Manon van Beek, CEO of TenneT, comments on the IJmuiden Ver project: “We are making an important contribution to accelerating the energy transition. Based on our experience with innovative technology in Germany, we can now help to realise the Dutch ambitions for the development of offshore wind energy with fewer cables, fewer platforms and less spatial impact and nuisance to the environment, both at sea and on land.”

TenneT connects Dutch offshore wind farm with a record capacity of 2GW (picture: TenneT , artist’s impression)

Linkup
> See TenneT press release, in Dutch (html)
> Open artist’s impression video (TenneT, YouTube)

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Research on impacts of underground cabling

04.04.2019

In Germany, it is a political objective to advance the grid expansion by installing underground cables. The Federal Government – and also the four German transmission system operators (TSOs) – hope by this means to increase public acceptance of the high-performance power lines needed to transmit electricity from the windy north of the country to the consumption-intensive south and west. But what the resident population may welcome, unsettles those through whose land the underground routes run, especially owners and cultivators of agricultural land.

The Dutch-German TSCNET shareholder TenneT itself would like to learn more about possible impacts of underground cabling on agriculture, for example in terms of soil physics or groundwater quality. The TSO has thus entered into a research cooperation with the Georg-August-University Göttingen. Together with members of the Departments of Agricultural Soil Science as well as Agricultural Economics and Rural Development, subsection Agribusiness Management, the long-term effects of three-phase underground cables on agricultural land will be investigated over a period of six years. For this purpose, a 2500m² test field for the construction and operation of 380kV underground cables is being set up at the Reinshof test farm near Göttingen in the German state of Lower Saxony.

The research partners hope to draw concrete conclusions from the test results for the construction of extra-high voltage underground cable routes as well as recommendations for recultivation measures. For these purposes, the operation of underground cables is simulated on the test field. Empty conduits are heated through heating tapes so that their thermal characteristics correspond to the power loss of real 380kV three-phase underground cables. In addition, the effects of the construction works are investigated. In this context, it is also of interest how long it takes until the original soil condition is restored.

TenneT is researching the long-term impacts of underground power transmission cables on agricultural land (picture: TenneT)

Linkup
> See TenneT press release, in German (html)

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News from PCI Energy Days

20.03.2019

The PCI Energy Days, organised by the European Commission (EC), offer promoters of European Projects of Common Interest (PCIs) the opportunity to present their projects and exchange experiences on how to build a future-proof and environmentally friendly energy infrastructure with innovative concepts. The inaugural PCI Energy Days took place on 19 and 20 March 2019 in the Belgian capital of Brussels and featured a policy conference as well as an exhibition on the practical implementation of specific PCIs. Among the attendees were the European Network of Transmission System Operators for Electricity (ENTSOE), the three transmission system operators (TSO) and TSCNET shareholders ELES from Slovenia, HOPS from Croatia and the Dutch-German company TenneT.

ELES took the opportunity to present in cooperation with HOPS the Croatian-Slovenian smart grid project SINCRO.GRID. Coordinated by ELES, SINCRO.GRID comprises in addition to the TSOs also two distribution system operators (DSOs) from both countries. The aim of the cross-border project is to optimise the efficiency of the respective national power transmission systems using advanced technologies and innovative data processing methods.

The Renewables Grid Initiative (RGI), an association of non-governmental organisations (NGOs) and TSOs from all over Europe, was also present at the PCI Energy Days to celebrate the signing of the Marine Grid Declaration. The Declaration sets out principles for grid development in the marine environment, such as promoting early mutual communication with stakeholders, adequate protection of the marine environment and knowledge sharing. The RGI members, which include the TSCNET shareholders 50Hertz, Amprion, HOPS, Swissgrid and TenneT, recognise the cooperation between TSO and NGOs as a highly promising approach to building a sustainable marine grid infrastructure. The signatories to the Declaration commit themselves to developing marine projects in accordance with nature conservation principles and early stakeholder involvement. The Marine Grid Declaration builds on the principles previously agreed in RGI’s European Grid Declaration. If you are interested, you can still sign both declarations. In this case, please contact the RGI.

From 19 to 20 March, the inaugural EC PCI Energy Days were held in Brussels, Belgium (picture: RGI)

Linkup
> See ELES press release (html)
> See RGI press release (html)
> Open Marine Grid Declaration (pdf, 926,8kB)

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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)

Linkup
> See Energinet press release (html)

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Royal interest in the Wind Power Hub

07.03.2019

TenneT, the Dutch-German transmission system operator (TSO), had the honour of hosting high-ranking visitors. During the German-Dutch trade delegation meeting on 6 March 2019 in the German North Sea port of Bremerhaven, Manon van Beek, CEO of the TSCNET shareholder, presented the vision and current plans for the North Sea Wind Power Hub in attendance of the Dutch King Willem-Alexander and Queen Máxima.

The North Sea Wind Power Hub concept combines wind energy production, storage, and transmission with a multinational interconnection of North Sea riparian states. In addition to TenneT, the international hub consortium includes the Danish TSO Energinet, another TSCNET shareholder, the port of Rotterdam and the Dutch natural gas company Gasunie. Hence, power-to-gas technologies are also involved in the hub concept. A transnational transmission grid, controlled through a distribution hub in the North Sea and enabling the feed-in and distribution of vast quantities of offshore wind energy, would strengthen the whole European energy market and increase the security of supply across the continent.

The Dutch royal couple took great interest in the virtual and interactive model of the hub concept showcased at the meeting. Manon van Beek was most appreciative of this aristocratic concern: “We are especially pleased and honoured by the interest of the royal couple in the energy hub.” The TenneT CEO considers the Power Hub to be a valuable instrument in achieving the objectives of the Paris Agreement. In this regard, the royal visit was beneficial because the realisation of a low-carbon energy future “requires international cooperation and coordination, political momentum and courage and the support of non-governmental organisations”, van Beek concluded.

TenneT has presented the North Sea Wind Power Hub in the presence of the Dutch royal couple (picture: TenneT)

Linkup
> See TenneT press release (html)
> Visit North Sea Wind Power Hub website (html)

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Tim Meyerjürgens appointed as new COO of TenneT

05.03.2019

When it was made known that Wilfried Breuer, one of the two Chief Operations Officers (COO) of TSCNET shareholder TenneT, would leave the company with effect from 1 April 2019, the Supervisory Board of the Dutch-German transmission system operator (TSO) has commenced a thorough search for an adequate successor. Now Tim Meyerjürgens has been appointed COO of TenneT Holding BV alongside Ben Voorhorst.

Both the Supervisory Board and the Executive Board are pleased to have found in Tim Meyerjürgens a candidate within the company who, with 23 years of experience in the energy sector, possesses a broad technical and operational expertise. Throughout the current month, Tim Meyerjürgens and Wilfried Breuer will be working closely together to ensure a seamless handover.

Tim Meyerjürgens is appointed new COO of TenneT (illustartion based on pictures from Tennet)

Linkup
> See TenneT press release (html)

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TSOs introduce possible SuedLink routings

21.02.2019

The SuedLink extra-high voltage line is an integral part of Germany’s future low-carbon energy infrastructure. Major supra-regional projects such as Suedlink are included in the German Federal Requirements Plan Act and are often referred to as “power highways”. In order to reach Germany’s and Europe’s climate goals, they are indispensable to link the windy regions of northern Germany with the consumption centres in the industrially highly developed south. SuedLink is jointly carried out by the two TSCNET shareholders TenneT, the Dutch-German transmission system operator (TSO), and TransnetBW, the TSO from southwest Germany.

The European “Project of Common Interest” (PCI) with an investment volume of around €10bn is planned as a DC underground cable. It comprises two measures with a capacity of 2GW each, from the northernmost federal state of Schleswig-Holstein through western Lower Saxony, northern Hesse and southern Thuringia to Bavaria and Baden-Württemberg respectively. In 2017, TenneT and TransnetBW defined a whole network of possible corridor sections suitable for detailed consideration. On that basis, the Federal Network Agency (Bundesnetzagentur) decided on the cable routes to be thoroughly analysed. In recent months, TenneT and TransnetBW then carried out an in-depth examination and evaluation of these corridor alternatives by applying around 150 criteria.

On 21 February, the two TSOs presented the proposed corridor and the other corridor options derived from their study to the Network Agency. “With the detailed studies of the possible corridor variants, we have now identified a specific underground cable corridor that has the smallest possible impact on humans and nature,” explains Manon van Beek, CEO at TenneT. To give all interested parties the opportunity to inform themselves in advance, TenneT and TransnetBW publish the overview maps of the proposed corridor and the grid of all possible corridors on their respective project websites. Numerous dialogue events are to follow. “Transparency is one of our highest priorities,” comments Dr. Werner Götz, CEO at TransnetBW, on this procedure.

TenneT and TransnetBW present possible corridor variants for SuedLink (picture: TenneT)

Linkup
> See TenneT press release (html)
> See TransnetBW press release, in German (html)

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