Imminent test operation for COBRAcable

24.06.2019

COBRAcable, the first direct interconnection between the electricity markets of Denmark and the Netherlands, is a joint project of the two TSCNET shareholders Energinet, the Danish transmission system operator (TSO), and TenneT, the Dutch-German TSO. Since spring, the partner TSOs have been preparing the commercial operation of COBRAcable. TenneT and Energinet have now launched an Urgent Market Messages (UMM) site for the commissioning of COBRAcable, which is scheduled to take place between 3 July 2019 and 6 September 2019.

A total of around 30 individual tests with different energy charges in the respective transport directions are planned. It is expected that the full capacity of COBRAcable will be available for the day ahead and intraday markets from 7 September. TenneT and Energinet then will offer financial transmission rights on COBRAcable at monthly and annual auctions. The first auction is expected to take place after a full month of stable operation, so probably the auction for November 2019, which will be held in October.

By promoting the exchange of surplus wind energy, COBRAcable will improve the cohesion of the European transmission system and the integration of the electricity market. It will also make a sustainable contribution to the low carbon energy future by allowing future offshore wind farms in the North Sea to be hooked up to the DC interconnector.

Energinet and Tennet will carry out individual tests of COBRAcable as of 3 July (picture: screenshot taken from TenneT video “COBRAcable Cable Pull Fano Denmark Film”, YouTube)

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> See Energinet press release (html)
> Visit REMIT UMM site (html)

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Romanian legislation promotes energy infrastructure

21.06.2019

In Romania, a new law adopted by President Klaus Iohannis on 20 June facilitates nationally important extensions to the transmission system infrastructure. The act promotes the implementation of important investment projects for Romania’s energy security, the construction of overhead lines and compliance with time limits for projects with European financing.

The Romanian transmission system operator (TSO) and TSCNET shareholder Transelectrica expressly welcomes the new legislation. Marius Dănuţ Carașol, chairman of the Transelectrica Directorate, highlights the positive effects on the TSO’s expansion efforts, for example by reducing bureaucratic obstacles.

New Romanian legislation facilitates grid extension (picture showing the Parliament building in Romania’s capital Bucharest: Mari Ana / Pixabay)

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> See Transelectrica press release, in Romanian (html)

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ENTSO-E Statistical Fact Sheet 2018

17.06.2019

The most important facts and figures on the European power system have been compiled by the European Network of Transmission System Operators for Electricity (ENTSO-E) and published in the “Statistical Fact Sheet 2018”. This latest edition of ENTSO-E’s annual data publication contains consolidated data compared to the ENTSO-E Transparency Platform including the generation mix in the countries of the ENTSO-E member transmission system operators (TSOs), the highest and lowest hourly load values and a map of the physical energy flows.

ENTSO-E has released the “Statistical Fact Sheet 2018” with the most important facts and figures on Europe’s power system (picture: collage using images from the fact sheet)

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> Open ENTSO/E fact sheet (pdf, 1.79MB)
> Visit ENTSO-E transparency platform, html

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Second go-live wave of XBID

13.06.2019

The successful go-live of XBID, the European cross-border Single Intraday Coupling (SIDC) solution, on 12/13 June 2018 was a significant step towards a single integrated continent-wide intraday market. Such an integrated market increases the overall efficiency of intraday trade through effective competition, increased liquidity and more efficient utilisation of generation resources across Europe. Today the first anniversary of XBID is celebrated and over 16 million trades have been executed since its launch.

The SIDC partners look back on a successful first year of operation with a stable and robust system performance as well as a high and growing number of trades across Austria, Belgium, Denmark, Estonia, Finland, France, Germany, Latvia, Lithuania, Norway, the Netherlands, Portugal, Spain, and Sweden. The integration of seven additional countries into the SIDC region is expected in the fourth quarter of 2019. A pre-launch event for the second wave is planned for the beginning of October 2019 and a trial period will also be arranged with the market parties. The countries for this second go-live wave are Bulgaria, Croatia, the Czech Republic, Hungary, Poland, Romania, and Slovenia.

The TSOs already cooperating in XBID include the TSCNET shareholders 50Hertz, Amprion, APG, TenneT, and TransnetBW as well as the TSCNET client Creos from Luxembourg. Further shareholders are to follow with the second wave, namely ČEPS, ELES, HOPS, MAVIR, PSE, and Transelectrica.

XBID, the SIDC solution for a single integrated European intraday market, celebrates its first anniversary

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> See ENTSO-E press release (html)

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Amprion presents CWE market report

03.06.2019

Amprion, one of the four German transmission system operators (TSOs), has published its market report for the period 2015 to 2018. In this comprehensive document, the TSCNET shareholder investigates the development of the electricity market in the Central Western Europe (CWE) region using data from Flow-Based Market Coupling (FBMC). The CWE countries (Austria, Belgium, France, Germany, Luxembourg, and the Netherlands) implemented FBMC in May 2015, which allows TSOs to allocate cross-border capacity and maximise market efficiency without compromising grid stability. This is due to the inclusion of the entire regional network in the coupling of electricity markets.

The control area of Amprion is a central hub for cross-border electricity trading in the CWE region. With its transmission capacities, the TSO can export up to eight GW of electricity at peak times and thus generate more than half of Germany’s total export performance. Transmission via the Amprion grid thus also supports security of supply in neighbouring countries, especially in critical situations such as winter 2016/2017.

Amprion’s analysis shows that the integration of the CWE markets is already well advanced and continues to progress. At the same time, the growing difference between positive and negative price peaks on the electricity exchanges also highlights the challenge of the highly volatile supply of renewable energies. Dr. Hans-Jürgen Brick, Chief Commercial Officer and CFO of Amprion, comments: “The mutual dependency in Europe on system security will continue to rise. We are therefore doing everything physically possible to connect the national markets and networks even better.”

Amprion has published a comprehensive market report for the CWE region

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> See Amprion press release (html)
> Open Amprion market report (pdf, 3,43MB)

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Agreement on synchronous interconnection

01.06.2019

There are five synchronous electricity areas in Europe: Continental Europe (CE), Nordic, Baltic, British and finally the area of Ireland and Northern Ireland. The CE area with the synchronised transmission grids of 26 countries is not only the largest in Europe, but also one of the largest interconnected power systems worldwide. The synchronisation of the Baltic area with CE is of strategic importance for the European Energy Union, one of the political priorities of the European Commission. Currently, the Baltic system is only asynchronously linked to CE between Lithuania and Poland through the “LitPol Link” and at two points to the Nordic region.

An application for a future synchronisation of the Baltic and CE systems was made by the three Baltic transmission system operators (TSOs) Elering, AST and Litgrid with support from TSCNET shareholder PSE, the Polish TSO. The European Network of Transmission System Operators (ENTSO-E) has now announced the first landmark for the project: An agreement on the conditions for a synchronous interconnection became effective on 27 May 2019. Synchronisation will enable the Baltic TSOs to operate their systems in the future at the same frequency as the CE system and in compliance with EU rules.

An agreement on the conditions for synchronous interconnection of the Baltic and CE energy systems has entered into force (picture of Riga by Aleksejs Bergmanis / Pixabay)

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> See ENTSO-E press release (html)

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ENTSO-E report on frequency drop

29.05.2019

On Thursday, 10 January 2019, shortly after 9 p.m., a deviation from the 50Hz mid-frequency was registered in the Continental European (CE) power system, which comprises the synchronised transmission grids of 26 countries. The deviation lasted 9 seconds and, with a drop to 49.808Hz, was the largest absolute frequency deviation since the so-called “European Blackout 2006”, when the frequency reached 49.0Hz.

Thanks to immediate collective action by the transmission system operators (TSOs) of the CE Regional Group the underfrequency was quickly rectified and the European security of supply was not compromised at any moment. In concrete terms, the activation of CE reserves and of interruptible contracts with French industrial customers returned the situation to normal. To identify the root causes of the incident, the European Network of Transmission System Operators for Electricity (ENTSO-E) undertook in-depth investigations and has now released a detailed and transparent technical analysis.

According to this report, the large drop was caused by the superposition of two factors. A significant deterministic frequency deviation (DFD) during the evening peak load encountered another, unpredicted one, registered between 9 and 11 January and caused by a technical error resulting from a frozen measurement on four connecting lines between Austria and Germany. The cumulative effect of the permanent frequency deviation from 9 to 11 January and the significant evening DFD on 10 January led to the frequency loss in the interconnected CE system.

The ENTSO-E technical report indicates that solutions for DFDs in the CE region need to be found. DFDs have been observed for years, but are now becoming more common and are of greater amplitude due to imbalances between generation and demand. Possible solutions to DFDs may require a change in operating and/or market rules. ENTSO-E will make further enquiries in close dialogue with all interested parties.

ENTSO-E has released an in-depth report on the frequency drop in the CE power system from January 2019 (illustration: ENTSO-E)

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> See ENTSO-E press release (html)
> Open ENTSO-E report (pdf, 2.65Mb)

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Strong improvements in NDPs of TSOs

28.05.2019

The individual Network Development Plans (NDPs) of the European transmission system operators (TSOs) set the parameters for the development of the electrical transmission infrastructure on the national scale. At the pan-European level, the biennial Ten-Year Network Development Plans (TYNDPs) – conceived by the European Network of Transmission System Operators for Electricity (ENTSO-E) with the participation of the member TSOs – provide the framework for in-depth identification of continent-wide key investments and infrastructure projects with high potential. It is the task of the Agency for the Cooperation of Energy Regulators (ACER) to assess the coherence of national and EU-wide NDPs.

ACER now has published its detailed opinion on the schemes, scenarios and projects included in the most recent national NDPs. ACER is pleased to find that the coherence with the European TYNDP has substantially improved, e.g. through a wider use of cost-benefit analysis for projects or a more systematic use of a multi-scenario approach. In its 84-page opinion, however, the Agency also calls for some improvements to reduce inconsistencies.

ACER has published its opinion on the coherence of national and EU-wide NDPs

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> See ACER press release (html)
> Open ACER opinion No 13/2019 (pdf, 512.25kb)

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Swissgrid analyses critical situation

27.05.2019

On the critical situation in the Swiss transmission grid on Monday, 20 May 2019, when individual grid elements were considerably overloaded or threatened to be overloaded, TSCNET shareholder Swissgrid, the Swiss transmission grid operator (TSO), has already completed an initial analysis. On that day, with a high Swiss domestic electricity production of around 12 GW, a total of around 4.5 GW was exported, most of it to Germany. Since the load flows typically run in the opposite direction, this atypical situation led to security breaches in the grid.

For reasons unknown, the European grid forecasts did not anticipate that export volumes would increase in the short term from Sunday to Monday. Swissgrid had thus to resolve the grid security breaches in real-time operation in cooperation with colleagues from the European TSOs. This incident shows that the forecasts can deviate considerably from the actual load flows. It also indicates the crucial importance of integrating all transmission grids in Europe, including Switzerland, into the grid modelling, so that any threats to grid security can be identified in advance and coordinated measures can be taken.

However, since Switzerland is excluded from market coupling due to the lack of an electricity agreement with the EU, the deviations between forecasts and effective load flows are likely to increase. An agreement, on the other hand, would include Swissgrid in the models for load flow calculation and capacity allocation of the European partners and provide the TSO with better information on the load flows through Switzerland.

Swissgrid presents first analysis of the grid security breach from 20 May (picture: Swissgrid)

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> See Swissgrid news release, in German (html)

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Core CCR project meeting hosted by HOPS

20.05.2019

Sixteen transmission system operators (TSOs) from the heart of Europe are participating in the Core Capacity Calculation Region (CCR) project in order to implement a decision taken by the Agency for the Cooperation of Energy Regulators (ACER) in November 2016 to merge the existing regional initiatives of Central Eastern and Central Western Europe into the European core region. These TSOs – including the twelve TSCNET shareholders 50Hertz, Amprion, APG, ČEPS, ELES, HOPS, MAVIR, PSE, SEPS, TenneT, Transelectrica, and TransnetBW – are strongly committed to implementing all CCR-related obligations in accordance with the respective network codes and guidelines of the European Commission.

Last week, the Croatian TSO HOPS organised a two-day project team meeting with representatives of all 16 Core CCR TSOs to calculate long-term cross-border transmission capacities compliant with the specifications on Capacity Allocation and Congestion Management (CACM). As one of the two Regional Security Coordinators (RSCs) for Core CCR TSOs, TSCNET Services was also part of the meeting. The concrete objective of the meeting in the Croatian capital of Zagreb was to prepare a proposal for an appropriate calculation methodology. This proposal will be open for public consultation from 10 June 2019. During the meeting participants also visited the HOPS control centre.

HOPS hosted a Core CCR project meeting in Zagreb (picture: HOPS)

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> See HOPS press release, in Croatian (html)

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