DA/RE project: first retrievals of redispatch capacities

11.07.2019

The Baden-Württemberg grid security initiative “DA/RE” (“DAta exchange/REdispatch”) addresses the increasing volatility and decentralisation of power generation. The aim is to stabilise the entire electricity system by utilising the flexibility potential of decentralised generation units from lower grid levels. Originally launched in the summer of 2018 by TSCNET shareholder TransnetBW, the German transmission system operator (TSO) from the state of Baden-Württemberg, and the southwest German distribution system operator (DSO) Netze BW, the project consortium was later expanded so that a total of three DSOs and four other partners from the areas of virtual power plants, home storage and energy trading were involved in the first DA/RE pilot phase from April to June 2019.

During this phase, the participants have defined and developed the method of data exchange and coordination. Following this successful implementation process, the first retrievals from pilot plants in the distribution network for redispatch purposes have now been initiated. Capacities were retrieved from battery home storage facilities, several biogas plants, a waste incineration plant and a cogeneration plant. The tests therefore involved both medium-voltage and low-voltage systems and the project partners have demonstrated that it is possible and important to make use of all flexibilities at all voltage levels for grid stabilisation.

“The retrievals from systems in the distribution network constitute a significant milestone for us, as they show that the concept is feasible and we are now able to gain initial experience in terms of practical suitability,” explains DA/RE project manager Florian Gutekunst from TransnetBW. The second stage of the pilot phase has thus begun. Further retrievals are now being carried out and various application cases are being tested. In concrete terms, the issue is how grid operators can trigger the retrieval of redispatch measures in a coordinated manner and how the information chain should be designed in order to guarantee all parties involved at all voltage levels complete transparency about the retrieval and the capacity provided. In the following third step, the retrievals are to be automated and the corresponding data paths implemented.

First retrievals of redispatch capacities have been carried out in the pilot phase of the DA/RE project (picture showing a scene from electricity trading: Next Kraftwerke)

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> See TransnetBW press release, in German (html)

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Connect+ for data exchange

14.06.2019

The four German transmission system operators (TSOs), the TSCNET shareholders 50Hertz, Amprion, TenneT, and TransnetBW, together with 16 distribution system operators (DSOs) have launched the “Connect+” project to jointly implement the legal requirements of the German Grid Expansion Acceleration Act (Netzausbaubeschleunigungsgesetz – NABEG). The project is a reaction to the increased need for coordination due to the current legislative amendments and intended to facilitate a more transparent exchange of data between grid operators and market participants.

German legislation has specified that, in future, all facilities for the generation or storage of electrical energy with a nominal capacity of 100kW or more must be utilised to prevent foreseeable bottlenecks in the grid. The modified conditions for redispatch apply from 1 October 2021. As the present feed-in management of the grid operators only reacts to acute congestions, an even more intensive cooperation between TSOs and DSOs is required in the future.

The new processes to be developed and introduced within the time frame pose a challenge for all grid operators. In the “Connect+” project, TSOs and DSOs want to develop uniform solutions for data distribution to harmonise data exchange between market participants and operators for congestion management. In a first step, essential specifications such as interfaces and formats are developed and defined.

The four German TSOs and 16 DSOs launch the data exchange project “Connect+” for congestion management

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

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ČEPS and SEPS to participate in IPDE

05.06.2019

The International Phasor Data Exchange (IPDE) platform is a multinational project to facilitate and optimise the exchange of operational data within the European interconnected transmission system. More specifically, these data derive from time-synchronous voltage, current phasor and frequency measurements which are collected and used in Wide Area Monitoring Systems (WAMS). IPDE is now making significant progress as the two TSCNET shareholder ČEPS and SEPS, the Czech and Slovak transmission system operators (TSO) respectively, have signed an agreement on participating in the platform.

Martin Durčák, Chair of the Board of Directors of ČEPS, comments that the “participation in the platform is another of our continual steps in the introduction of technological innovations and shift towards a digitally managed and controlled grid”. Miroslav Obert, CEO of SEPS, complements: “The project we are undertaking in collaboration with our Czech partners ensures method simplification and uniformity of phasor data exchanges between individual TSOs.”

ČEPS and SEPS have signed an agreement to participate in the IPDE Data Exchange platform

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> See ČEPS press release (html)
> See SEPS press release, in Slovak (html)

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DA/RE enters pilot phase

02.04.2019

Following its launch in June 2018, the Baden-Württemberg grid security initiative “DA/RE” (“DAta exchange/REdispatch”) has entered the pilot phase on 1 April. The DA/RE initiators are TSCNET shareholder TransnetBW, the German transmission system operator (TSO) from the state of Baden-Württemberg, and the southwest German distribution system operator (DSO) Netze BW with the support of the State Ministry of the Environment, Climate Protection and the Energy Sector. Meanwhile, several grid and facility operators are involved and actively participating in the pilot phase.

DA/RE responds to the increasing volatility and decentralisation of power generation. By utilising the flexibility potential of decentralised plants from lower grid levels, the entire electricity system is intended to be stabilised. Basically, DA/RE is an IT platform, through which grid operators can obtain information on flexibility potentials and coordinatedly retrieve them. In the trial phase, scheduled to last until the end of September 2019, two essential modules for data exchange and coordination between grid and facility operators are to be tested.

With its wide range of decentralised systems, DA/RE adequately represents the current market for flexibility. “Together we can thus test the processes with different DSOs up to medium voltage level and provide the further course of the project with valuable experience,” explains Florian Gutekunst, DA/RE project manager at TransnetBW.

The DA/RE initiative for grid security initiated by TransnetBW is entering the pilot phase

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> See TransnetBW press release, in German (html)

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TSOs release data under open license

03.02.2019

The European power transmission system operators (TSOs), represented by the European Network of Transmission System Operators for Electricity (ENTSOE), have agreed on a new data policy for the reuse of TSO owned data. This new policy implies that the TSOs release their data on ENTSO-E’s Transparency Platform under an open data licence.

This allows TSO data to be easily reused for new services, research and applications, such as the “Wind Europe Map” and “Tomorrow’s Electricity Map” – just two examples of how the open TSO data can be used to better inform citizens about energy transition and to develop new services and transparency in general. The TSOs and ENTSO-E thus demonstrate their commitment to providing sound and reusable facts and figures to energy market players and the public.

The European TSOs have agreed to release their data on ENTSO-Es Transparency Platform under an open license

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> Open example file
> See ENTSO-E press release (html)
> Visit ENTSO-E’s Transparency Platform (html)

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Smart TSO-DSO cooperation continues

24.10.2018

The energy transition entails many changes for the energy industry, such as the increasing generation of decentralised and volatile renewables, new actors on the market like aggregators, or the active role of customers ‒ all these developments require flexibility and pose a challenge for every player in the energy market, but above all for those responsible for a stable grid and a secure electricity supply: transmission system operators (TSOs) and distribution system operators (DSOs) sharing similar obligations and interests.

To cope with the demanding future tasks, network operators need a common vision of active system management to increase the flexibility of transmission and distribution and to coordinate them closely. This is why ENTSO-E entered into an intensive cooperation with four associations representing European DSOs a few years ago, namely the European Distribution System Operators (EDSO) for Smart Grids, CEDEC, Eurelectric, and GEODE. A significant first step was the publication of a report on TSO-DSO data management on 19 September 2016.

By signing an updated Memorandum of Understanding on 23 October 2018, the partners expressed their commitment to maintain and enhance their collaboration. The focus is on measures to realise synergies in research, development and innovation, e.g. the exchange of data and information, the introduction of new communication devices and software, and the coordinated renewal of ageing grids. In addition, the TSOs and DSOs are also working together to implement network codes more efficiently. Further fields of cooperative activities will be defined at the beginning of 2019, taking into account the European Commission’s final Clean Energy Package.

ENTSO-E has signed an updated Memorandum of Understanding on close cooperation with four associations representing European DSOs

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> See ENTSO-E press release (html)

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Wind data for smart grid control

25.09.2018

The volatility associated with the generation of renewable energy is a well-known side effect of the energy transition, which has not made it any easier for transmission system operators (TSOs) to constantly maintain grid stability and supply security. The adaptation of the transmission grid to the requirements of the new energy landscape is progressing more slowly than the expansion of renewable energies themselves and grid overloads are therefore a common consequence. In such cases, renewable power generation must be throttled, resulting in the loss of valuable (and green) energy capacities.

In order to avoid this and also to reduce costly interventions, TSCNET shareholder TenneT, the Dutch-German TSO, and Statkraft, Europe’s largest generator of renewable energy, are investigating in a joint pilot project how the grid can be better and smarter controlled. Specifically, the two partners want to find out how TenneT can progressively exploit the feed-in forecasts of Statkraft’s northern German wind farms for intelligent grid control. The data obtained improves the calculation of grid utilisation and thus enables the TSO to identify and eliminate possible congestions at an early stage. In a second step, the direct control of wind turbines by TenneT will be tested in order to relieve grid bottlenecks.

“Every day we eliminate bottlenecks in the power grid with hundreds of interventions in conventional and renewable generation. To ensure that we only intervene as much as necessary, it is important for us to have direct access to wind turbines so that we can control them in bottleneck situations,” explains Lex Hartman, executive board member at TenneT. The smart grid initiative of TenneT and Statkraft is part of the consortium project “NEW 4.0 ‒ Norddeutsche EnergieWende” (“Northern German Energy Transition”) funded by the German Federal Ministry for Economic affairs and Energy as part of the promotion programme “Schaufenster intelligente Energie ‒ Digitale Energiewende” (“Showcase Intelligent Energy – Digital Energy Transition”).

TenneT cooperates with the energy group Statkraft on a pilot project for smart grid control utilising wind data

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> See TenneT press release, in German (html)

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CGM methodology framework concluded

03.07.2018

Good news comes from the methodologies drafting team of the Common Grid Model (CGM) Programme under the supervision of the European Network of Transmission System Operators for Electricity (ENTSO-E): Two additional methodologies have been approved by all the relevant national regulatory authorities. This means that the methodological framework for the CGM process has been completed.

In order to create an integrated European energy market, the European Commission has established guidelines on electricity transmission system operation in various Commission Regulations. All European transmission system operators (TSOs) are obliged to prepare and implement a CGM methodology. The joint TSO proposal on the last two CGM methodologies has been openly consulted in late 2017 and then been submitted to the authorities. Formal approvals at the respective national levels are still pending and are expected in September 2018.

The framework now consists of five methodologies (CGMM-v1-plus, CGMM-v2-plus, CGMM-v3, GLDPM-v1, and GLDPM-v2) covering technologically significant aspects such as capacity allocation, congestion management and forward capacity allocation. The GGM methodologies in their entirety ensure that each TSO involved has access to all the necessary data to build its individual grid model.

The framework for the Common Grid Model Methodology with five methodologies is completed.

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> See ENTSO-E press release (html, with access to relevant documents)

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DA/RE initiative for grid security

18.06.2018

Today’s energy system is increasingly characterised by decentralised power production and volatile feed-in of electricity. This substantially affects the operation of the electricity grids and poses additional challenges for those who control them: the transmission system operators (TSOs) and the distribution system operators (DSOs). TSCNET shareholder TransnetBW, one of the four German TSOs, wants to explore innovative and cooperative approaches in order to make the grid and data flows smarter and thus ensure constant network security also in the new energy landscape.

Together with the southwest German DSO Netze BW, TransnetBW has launched an initiative that pursues two main targets: an efficient data exchange for grid security planning and coordinated redispatch performances on all grid levels. For this purpose, a digital platform is used that is accessible to all involved: TSOs, DSOs as well as plant operators. This open and integrated approach enables the use of plants and systems at distribution level for grid stabilisation measures at all levels. Via the platform, more facilities can be made available for redispatching which increases grid security.

The name of the new initiative derives directly from its purpose: DA/RE stands for “DAta exchange / REdispatch”, and at the same time it has to be understood literally: The DA/RE-partners are ready to take new and little trodden paths. Dr. Werner Götz, Chairman of the TransnetBW executive board, explains: “We no longer think of system security and system responsibility in the usual horizontal and exclusive TSO view, but across all network levels.” Preceded by a pilot phase from 2019, the initiators plan to implement the platform solution in 2021.

TSCNET shareholder TransnetBW, one of the four German TSOs, launches DA/RE initiative for grid security together with German DSO NetzeBW.

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> See TransnetBW press release, in German (html)

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Solar data for the digital energy transition

21.03.2018

A comprehensive data supply is a prerequisite for the adequate utilisation of decentralised and volatilely generated electricity, the two basic features of green electricity. Needless to say, that optimised utilisation improves grid stability and supply security, which is why TSCNET shareholder TenneT strengthens its data collection efforts. The Dutch-German transmission system operator (TSO) has agreed to exchange real-time solar generation data via a control system coupling with a German distribution system operator (DSO) from the Lower Franconian region.

The exchange of generation data in combination with weather data enables the operators to forecast the amount of regional solar energy generation for the next hours and days more accurately. This improves grid-feed-in and network utilisation and reduces operational costs. Lex Hartman, member of TenneT’s executive board, considers the collaboration an “important milestone in the digitisation of power supply”, and concludes: “With this cooperative data exchange, supply security is the winner.”

> See TenneT press release, in German (html)

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