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)

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

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TenneT presents Annual Report

21.02.2019

The transition to significantly more solar and wind energy in the power grid continues to have a substantial impact on the business operations of TSCNET shareholder TenneT, the Dutch-German transmission system operator (TSO). The apparent progress made by TenneT in this respect is reflected in the TSO’s just published Integrated Annual Report 2018, which is accompanied by the Green Finance Report 2018. To further advance the energy transition, TenneT focuses on the innovation and optimisation of the existing transmission system as well as on major national and international grid expansions. Manon van Beek, CEO at TenneT, refers to the necessity “to expand and reinforce our grids both onshore and offshore” and further explains: “We must also use the capacity of this infrastructure better, more flexibly and efficiently with the help of technology.”

TenneT again achieved a very good financial result in 2018. On an underlying revenue basis of €4.2bn, the TSO invested €2.3bn (2017: €1.8bn) in the energy transition and security of supply, with remarkable success, as grid availability in 2018 was 99.9988% within TenneT’s control area. And apart from the ensured reliability of the current transmission system, TenneT also wants to guarantee security of supply in the future. Since the energy future cannot be realised without inventive concepts, TenneT was and will be very active in innovation research for a flexible and affordable energy system based on solar and wind energy as well as green hydrogen. Several research projects are currently underway with renowned partners from industry and science.

Especially in terms of wind energy, TenneT is setting standards by reaching a new milestone in Germany and bringing almost 17TWh of offshore wind energy ashore in 2018. TenneT’s total connection capacity for offshore wind farms grew to 6,232MW. The BorWin3 and DolWin6 projects, which will be completed in 2019 and 2023 respectively, will further increase capacity to more than 8,000MW in Germany, while the development of an offshore grid in the Dutch North Sea is also progressing as planned.

Another important operational objective of TenneT is the further integration of the Northwest European electricity market, which is essential for the success of the European energy targets. One of TenneT’s current projects is the Doetinchem-Wesel link between the Netherlands and Germany, which went into operation in September 2018. In addition, the COBRAcable subsea connection between the Netherlands and Denmark has “landed” at the Eemshaven connection point and will be commissioned this year. Also worth noting is the NordLink cable connection currently under construction, which will be the first direct link between the German and Norwegian markets. The 624km interconnector is expected to come on stream in 2021. TenneT will then be operating 16 interconnectors in total.

TenneT presents its Integrated Annual Report 2018 and Green Finance Report 2018 (picture: screenshot taken from video “50 Hertz – The challenge of continuous electricity”, TenneT – Youtube)

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> See TenneT press release, (html)
> Visit Integrated Annual Report 2018 website (html)
> Open Green Finance Report 2018 (pdf, 2.84MB)

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Line upgrade in Southwest Germany in planning phase

18.02.2019

The transmission capacity of the extra-high voltage grid in the southwest of the German federal state of Baden-Württemberg must be increased in order to ensure regional security of supply as well as reliable electricity transport in the future. Among the measures taken by TSCNET shareholder TransnetBW, one of the four German transmission system operators (TSOs), is the replacement of the 220kV line between Daxlanden and Eichstetten am Kaiserstuhl by a 380kV line.

This line upgrade is included in the German National Grid Development Plan for electricity and comprises the construction of some 120km of new lines and five substations. The entire project is divided into four sections. The planning approval for the section between Weier and Meißenheim has now been applied for at the competent regional council. After official review, public display and consultation, the line corridor will be determined, followed by the specification of the exact routing in the subsequent planning approval procedure.

TransnetBW has applied for planning approval for a section of the Daxlanden-Eichstetten line upgrade (picture: TransnetBW)

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> See TransnetBW press release, in German (html)

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TenneT and Gasunie present “Infrastructure Outlook 2050”

15.02.2019

Electricity grids in Europe are increasingly confronted with the fluctuating feed-in of renewable energies. Consequently, they need more flexibility, which can be provided by the comprehensive coupling of sectors such as energy, transport, industry and heat. Many European transmission system operators (TSOs) have identified the integration of electricity and gas transmission infrastructures as a promising approach to fulfilling the requirements of the coming sustainable energy system. Electricity and gases must complement each other, since interlinking both grid types creates new storage possibilities and also provides additional transport options for renewables. Both factors will help to keep energy supplies reliable and affordable also in the low carbon energy future.

TSCNET shareholder TenneT, the Dutch-German TSO for electricity, and Gasunie, the Dutch TSO for gas, each operate grids in the Netherlands as well as in Germany. Last year they entered into a sector coupling partnership with plans for the Power-to-Gas (PtG) pilot plant “ELEMENT ONE”. Now the TSOs have presented their joint “Infrastructure Outlook 2050”. It clearly illustrates that the existing electricity and gas infrastructures in the Netherlands and Germany continue to play a decisive role in coping with the increase in renewable energies and achieving the Paris climate targets. The main conclusion of the joint TSO study is that electricity and gas networks must be more closely interconnected by 2050 in order to meet the objectives. The Outlook is also the first document of its kind to consider various scenarios for the future development of energy supply.

The importance of hydrogen from PtG technologies for energy storage and transport is also highlighted. But even despite the potential of sector integration, further expansion of the electricity grid remains essential, as all scenarios envisage a significant increase in the necessity of electricity transport. In addition, however, there must also be backing from political decision-makers and the creation of a clear, supportive regulatory framework. Manon van Beek, CEO at TenneT, argues that “energy systems are not converted overnight but require sustained, joint efforts”. She therefore sees the need for close cooperation between all those involved in the energy market. In this respect, the “Infrastructure Outlook 2050” represents a “solid, joint start with fresh insights”.

TenneT and Gasunie present the “Infrastructure Outlook 2050” on developing and coupling of transmission infrastructures (picture: Gasunie)

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> See TenneT press release (html)
> See TenneT press release, in German (html)
> Open “Infrastructure Outlook 2050” (pdf, 45.28Mb)

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EU invests in priority energy infrastructure

05.02.2019

The “Connecting Europe Facility” (CEF) programme by the European Commission (EC) is a major European funding instrument to support the Energy Union, which is one of the EC’s policy priorities. CEF promotes the development of high performing, sustainable and efficiently interconnected trans-European networks in transport, energy and digital services sectors. Significant infrastructure projects of TSCNET shareholders are also considered as Projects of Common Interest (PCIs) and worthy of support.

PCIs financed by CEF include for example the Viking Link interconnector of the Danish transmission system operator (TSO) Energinet, the SuedLink DC line in Germany – a joint venture of the Dutch-German TSO TenneT and TransnetBW from southwestern Germany – and the joint smart grid project SINCRO.GRID of TSOs ELES and HOPS from Slovenia and Croatia respectively.

Last week, the EU Member States endorsed the EC’s proposal to invest a further €800 million under the CEF in infrastructure projects with high cross-border benefits. The current approval concerns the CEF’s financial support for studies and work on a total of 14 projects. Priority has been given to initiatives to increase competitiveness, improve security of energy supply and contribute to sustainable development and environmental protection.

The EU is investing a further €800m in priority energy infrastructure (illustration based on a picture by EC-Audiovisual Service / Mauro Bottaro)

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Revised Network Development Plan for Germany

04.02.2019

The four German transmission system operators (TSOs) and TSCNET shareholders 50Hertz, Amprion, TenneT and TransnetBW today have published the first draft of the new 2019 version of their “Network Development Plan (NDP) 2030” on their joint NDP website. All the different scenarios of the NDP meet the German official 65 percent target for renewables in gross electricity consumption, but differ in terms of the use of innovative technologies, storage technologies and flexibility options. Irrespective of this, a further increase in the internal German electricity market gap can be observed in all scenarios – with cumulative generation in the north and consumption centres in the south and west.

In response to the increase in required transport capacity estimated at around 11GW – due to the expansion of renewables, the significant reduction in the use of coal for electricity generation and the development of the European electricity market – the TSOs consider the construction of two additional major DC lines with a total length of 1160km to be necessary. These two extra lines with a total capacity of 4GW were not part of previous NDPs and go beyond the current German Federal Requirements Plan. The new lines are foreseen to run as underground cables in a corridor from the federal state of Schleswig-Holstein via Lower Saxony and North Rhine-Westphalia to Baden-Württemberg. They are part of the scenario B 230, in which the German TSOs propose to build altogether more than 4500km of new or upgraded power lines by 2030 (the abovementioned 1160km of the new DC lines plus an additional 450km of new constructions and 2900km of upgrades).

The costs for the expansion of the German extra-high voltage grid in the B 230 scenario will rise significantly as a result of the new projects. The TSOs estimate the costs at around €52bn. As in previous years, the Offshore Network Development Plan was drafted together with the NDP and integrated into the new NDP 2030. The NDP publication marks the start of a four-week public consultation. The comments will be taken into account for the second draft of the NEP 2030, which will then be submitted to the Federal Network Agency for review. The Agency is expected to announce its modified plans probably in May, after which the Federal Government will have to confirm the expansion in the official Federal Requirements Plan.

The four German TSOs present a revised Network Development Plan 2030, which provides for a total of 4500km of new or upgraded power lines (picture: Amprion GmbH / Haslauer)

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> See Amprion press release (html)
> See TransnetBW press release, in German (html)
> Visit the Grid Development Plan website (html)

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APG study on targets for renewables

31.01.2019

A resilient electricity transmission grid is the most effective flexibility option for converting the energy system in the course of the energy transition. This is the result of a study conducted by the renowned consulting company “Energy Brainpool” on behalf of TSCNET shareholder APG, the Austrian transmission system operator (TSO). The aim of the study is to identify possible effects of the restructuring of the energy system and concrete measures so that Austria can sufficiently contribute to the international climate agreement. According to “Mission 2030”, the Austrian energy and climate strategy, the national target in this respect is to cover 100% of electricity consumption with renewable energies by 2030.

“A full focus on renewables is the only reasonable way,” states Gerhard Christiner, CTO at APG. “We fully support the political goals of the Austrian Federal Government.” Since the transformation of the energy system is a comprehensive project, it can only be realised with enormous effort of all parties involved. The new study shows that the expansion of renewables will lead to unprecedented volatility in power generation, which should best be countered with a strong transmission grid. The basic precondition for this is the rapid implementation of the existing grid extension plans.

“The APG grid development plan provides for an investment volume of more than two and a half billion euros over the next ten years to upgrade our infrastructure,” explains Thomas Karall, CFO at APG. That’s money well spent, for the results of the “Energy Brainpool” study show that, in principle, it is possible to achieve the targets set out in “Mission 2030″. But official approval procedures must be accelerated, because: “If we do not manage to extend the transmission grid on time, the energy system will reach its limits. Then it will not be possible to fully exploit the potential of renewable energies,” explains CTO Christiner.

Vienna-based APG presents the results of a study on the preconditions for the Austrian “Mission 2030” targets

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> See APG press release, in German (html)
> Open study “Austria’s way towards 100% renewables”, in German (pdf, 1.19MB)

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Agreement on minimum capacity at Danish-German border

25.01.2019

In July 2017, the Danish Ministry of Energy, Utilities and Climate and the German Ministry for Economic Affairs and Energy adopted a joint declaration on the increase of cross-border electricity trade between Western Denmark and Germany. The competent transmission system operators (TSOs), the TSCNET shareholders Energinet from Denmark and TenneT, the Dutch-German TSO, subsequently agreed to implement a joint countertrading programme. Energinet and TenneT have been meeting the requirements of the joint declaration since July 2017 and have since ensured minimum available hourly capacities for both directions at the border.

In addition, TenneT has committed itself to the European Commission (EC) in 2018 to further expand the coordinated trade programme and to implement the corresponding EC decision in cooperation with Energinet from January 2019. In order to better comply with TenneT’s additional obligations from the commitment, the two TSOs have now signed an extended agreement supporting TenneT in doing so.

Energinet and Tennet signed an extended agreement on guaranteeing minimum capacities for cross-border trade

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European power facts

22.01.2019

“Power Facts Europe 2019” is a focused and data-driven report on the dimension, status quo, development and perspectives of key areas of the European energy transition published today by the European Network of Transmission System Operators for Electricity (ENTSO-E). The “Power Facts” are part of a wider ENTSO-E transparency initiative by which ENTSO-E and the transmission system operators (TSOs) aim to provide citizens with factual support to promote the energy transition in Europe and its acceptance.

The “Power Facts Europe” consist of six chapters. The first three represent the common triad of sustainability, market and security of supply, which is supplemented by chapters on infrastructure, customers and the cyber physical grid. Each chapter offers relevant data compilations, mainly provided by the TSO community, that allow a better understanding of important aspects related to the energy transition.

ENTSO-E has released “Power Facts Europe 2019”, a consistent data report on the EU-wide energy transition

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> Open ”Power Facts Europe 2019” (pdf, 22.7MB)

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Approval for construction of SuedLink converter

15.01.2019

The substation in Leingarten, operated by TSCNET shareholder TransnetBW, one of the four German transmission system operators (TSOs), is the southwest German ending point and the location for the converter of the SuedLink extra-high voltage line. This supra-regional project is carried out jointly by TransnetBW and further TSCNET shareholder TenneT, the Dutch-German TSO. SuedLink will be of great benefit to Germany’s future energy system as it will transmit sustainable electricity from the north of the country to Bavaria and Baden-Württemberg in the industrially highly developed south.

On 15 January 2019, TransnetBW received the first partial construction permit from the competent district administration for the construction of the SuedLink converter at Leingarten. The first preparatory construction measures can now begin as planned in 2020, and the commissioning of the entire DC underground cable connection with a length of approximately 700km remains scheduled for 2025.

The new equipment in Leingarten will convert the DC into AC so that it can be fed into the transport network. Dr. Werner Götz, CEO at TransnetBW, comments: “With the district administration’s approval for the converter on the site of our substation, we were able to find the best solution for the region and the local community. I am very pleased that we are the first TSO in Germany to receive approval for such a DC converter.”

TransnetBW has received approval to build the converter for the SuedLink extra-high voltage line in Leingarten (photomontage of the future substation: TransnetBW)

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> See TransnetBW press release, in German (html)
> See TransnetBW press release, in English (html)

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