Study on German-Polish TSO cooperation

16.01.2020

The two transmission system operators (TSOs) and TSCNET shareholders 50Hertz from Germany and PSE from Poland jointly conducted the “German-Polish Study on cooperation between TSOs PSE and 50Hertz in long-term and mid-term perspectives”, which now has been finalised. The study was supported by the respective national Ministries responsible for energy.

As its title suggests, the study is divided into an investigation of medium-term and long-term cooperation objectives. The mid-term part aims at improving the coordination of the operational planning processes. The following issues, among others, have been identified as important: improving the quality of forecasting of power flows at the German-Polish border and the coordinated use of cross-border remedial measures such as phase-shifting transformers as well as bilateral and multilateral redispatch. To better predict cross-border flows, PSE and 50 Hertz agreed to support the development of a flow-based methodology, and as far as the remedial measures are concerned, advanced software solutions are required. However, not only the development of an IT tool is needed here, but also advanced coordination and cost sharing in a region-wide mechanism.

For the long-term study, a modelling process carried out by the National Centre for Nuclear Research in Warsaw was used, which was consulted and monitored by experts from both TSOs. Using alternative scenarios, different time frames and market simulations, the main trends in German-Polish electricity exchange as well as future challenges for regional markets and networks were identified, such as interconnector capacities, growth of energy demands or deviating energy prices.

50Hertz and PSE have conducted a joint study on German-Polish TSO cooperation (picture: Andreas Vogel / CC BY-SA 4.0)

Linkup
> See PSE press release (html)
> See 50Hertz webpage on the study, in German (html)
> Open Executive summary (pdf, 538.47kB)

See article on single page

TSO proposals on capacity balancing submitted

20.12.2019

In December 2017, the European Commission Regulation establishing a guideline for electricity balancing came into force. The European transmission system operators (TSOs) were given two years to prepare two proposals aimed at promoting market integration through the procurement and use of standard products for capacity balancing in an efficient, economic and market-based manner. Considering feedback from stakeholders, public consultations and workshops, these two proposals have now been submitted by the European Network of Transmission System Operators for Electricity (ENTSO-E) to the Agency for the Cooperation of Energy Regulators (ACER).

The “Proposal for a methodology for co-optimised allocation process of cross-zonal capacity for the exchange of balancing capacity or sharing of reserve” specifies how cross-zonal capacity should be allocated in a single optimisation process to bids for energy exchange as well as for the exchange of balancing energy or the sharing of reserves. The process suggested involves contracting on a day-ahead basis and meets the requirements of the “Clean Energy for All Europeans Package”.

The “Proposal for a list of standard products for balancing capacity for frequency restoration reserves and replacement reserves” details the minimum harmonisation criteria for the exchange of balancing capacity set by all TSOs. To respect the specific conditions of each region, additional characteristics may be defined and harmonised by two or more TSOs deciding to jointly provide balancing capacity.

ENTSO-E stresses that substantial work still needs to be done on the implementation and application of these proposals. Close interaction between neighbouring TSOs is essential for the establishment of balancing capacity cooperation.

ENTSO-E has submitted two TSO proposals on capacity balancing to ACER (picture showing Ljubljana, capital of Slovenia and home of ACER)

See article on single page

Swissgrid and hydropower storage plants agree on minimum production

20.12.2019

To avoid an overload of grid elements in western Switzerland during the winter holidays, TSCNET shareholder Swissgrid, the Swiss transmission system operator (TSO), has agreed upon a minimum production with selected regional hydropower storage plants. This is intended to reduce the potential increased and costly need for redispatch during these low-consumption days.

The measure is also necessary because the availability of the transformer at the Bassecourt substation in the canton of Jura is currently limited and the new transformer at Mühleberg in the canton of Berne has not yet been fully installed. Both projects will be implemented in spring 2020. The agreed minimum production in the period from 20 December 2019 to 6 January 2020 is 200MW (off-peak) and 400MW (peak).

Swissgrid has negotiated minimum production from hydropower storage plants

Linkup
> See Swissgrid news release (html)

See article on single page

ELES and Renault cooperate in e-mobility project

09.08.2019

“Demonstration of User-Friendly E-Vehicle Charging Solutions for Promoting Mass Use of E-Vehicles in Europe – INCIT-EV” is the somewhat lengthy but therefore very precise and apposite name of a research project conceived by TSCNET shareholder ELES together with 32 international partners. Probably the most prominent cooperation partner of the Slovenian transmission system operator (TSO) is the French multinational automobile manufacturer Renault, but the Italian automotive industry is also actively involved.

The core objective of the project, funded by the EU with around €15m under the framework of the Horizon 2020 programme, is the utilisation of advanced charging infrastructures and technologies and the development of corresponding business models. INCIT-EV is designed in line with the concept of the “E8 E-Vehicle Mass Charging Infrastructure” developed by ELES, which strives to make charging as simple, intuitive, and user-friendly as possible. The aim of the TSO is to extend the Slovenian E8 concept to the European level. The project partners also use neuroscientific techniques to adapt the development of the technology to the unconscious preferences and subjective expectations of e-car users.

ELES and Renault cooperate in e-mobility project (picture: ELES)

Linkup
> See ELES press release, in Slovenian (html)

See article on single page

50Hertz and TenneT awarded for PtG projects

26.07.2019

Last week, Peter Altmaier, the German Federal Minister for Economic Affairs and Energy, announced the winners of the ideas competition “Reallabore der Energiewende” (“Real Laboratories of the Energy Transition), which aims to promote promising energy technologies of the future, especially in the field of hydrogen technology. The winners include the two TSCNET shareholders 50Hertz, the transmission system operator (TSO) from north-east Germany, and Tennet, the Dutch-German TSO, as they are both involved in award winning projects.

Tennet is cooperating with Gasunie and Thyssengas for ELEMENT ONE, a power-to-gas (PtG) plant to be built in the German federal state of Lower Saxony, which will be capable of converting up to 100MW of electrical power into gas. ELEMENT ONE is in the planning phase, but the project partners are confident that the results of the project will provide crucial information on electricity and gas grid integration, the development of operator models and the regulatory environment. With their approach, they aim to accelerate the urgently needed transfer of technology and innovation from research to practice in the field of sector coupling and hydrogen technology.

Key technologies of energy supply
50Hertz is involved as associated partner in two winning PtG projects: “GreenHydroChem Mitteldeutsches Chemiedreieck“ in Saxony-Anhalt, and “Reflau – Referenzkraftwerk Lausitz“ in Brandenburg. These two projects also focus on sector coupling and hydrogen technology. The partners for GreenHydroChem are Siemens, Linde, and the Fraunhofer Institute for Microstructure of Materials and Systems (IMWS). With a 50MW electrolyser, regeneratively generated electricity is first to be converted into hydrogen and oxygen. The hydrogen is then converted in refineries into base chemicals and methanol, which can be blended with conventional fuels for the use in the transport sector. With Reflau, the partners want to combine and test in practice key technologies of energy supply with renewable energies and hydrogen as a chemical storage.

Dr. Dirk Biermann, Chief Markets & System Operations Officer at 50Hertz, welcomes the support for innovative technologies: “With our involvement in the laboratories, we are specifically promoting the development of Power-to-X technologies for the energy market. Because if things get serious in a few years’ time, we will need proven and grid-compatible experience with this new technology.”

50Hertz and TenneT are among the winners of the German “Reallabore der Energiewende” competition for the promotion of innovative energy technologies (picture: Fraunhofer IMWS / Sven Döring)

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

See article on single page

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)

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

See article on single page

New FCR market design

04.07.2019

The collaboration of central European transmission system operators (TSOs) in the procurement and exchange of Frequency Containment Reserve (FCR) is the first regional cooperation in Europe to implement market harmonisation in compliance with the EU Guideline on Electricity Balancing (EBGL). The TSOs that make up the FCR consortium are: the Austrian, German and Swiss TSCNET shareholders APG, 50Hertz, Amprion, TransnetBW, and Swissgrid, the Dutch-German shareholder TenneT as well as the Belgian TSO Elia and the French TSO RTE, which are supplemented by further TSCNET shareholder Energinet from Denmark as non-active member.

The FCR cooperation was founded in the summer of 2016 and has conducted two consultation rounds in the last two years, resulting in a final proposal, which was approved by all national regulators involved. The first milestone in the advancement of the largest FCR market in Europe has now been reached in the implementation of a new FCR market design. In addition to shortening the product length from a week to a day, the cooperation introduces a marginal pricing system. The aim is to reduce procurement costs and create incentives for new balancing power providers and technologies to enter the market.

The FCR cooperation introduces a new market design

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

See article on single page

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

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

See article on single page

AI for decentralised grid stabilisation

06.06.2019

In a sustainable energy future, small decentralised plants such as combined heat and power (CHP) plants, heat pumps or biogas units must assume the role of stabilising the transmission system, a task which is nowadays mainly performed by large, centralised power plants. To investigate the technical feasibility of decentralised stabilisation options, TSCNET shareholder TenneT, the Dutch-German transmission system operator (TSO), the distribution system operator (DSO) Bayernwerk and Consolinno Energy GmbH have now jointly carried out a successful test in the southern part of the TenneT control area, the German federal state of Bavaria.

Since there is a vital public interest in such future-oriented technological solutions, the test was funded by the German Federal Ministry for Economic Affairs and Energy in the framework of the research project “C/Sells” which is part of the innovation programme “Smart Energy Showcases. Digital Agenda for the Energy Transition” (“Schaufenster intelligente Energie. Digitale Agenda für die Energiewende” – SINTEG). During the test, at the request of TenneT, the feed-in of a CHP plant controlled by Consolinno and connected to the low and medium-voltage grid of Bayernwerk was increased in order to provide the grid with the electricity required for stabilisation in the event of a bottleneck.

What is new is that each plant autonomously determines its flexibility potential through artificial intelligence (AI). The respective potential of the individual plants can then be further aggregated by means of swarm intelligence. The plants are in normal marketing and operation mode and report free flexibility quantities to the grid operators. “In Bavaria alone there are several thousand CHP plants, heat pumps and biogas facilities, nationwide there are many thousands more. They can increase the flexibility of the energy system and thus contribute to a safe and decentralised energy system in Bavaria and Germany. David can thus become Goliath,” comments Tim Meyerjürgens, COO at TenneT. Also in several other cooperative pilot projects, the TSO is exploring the potential of decentralised flexibility.

TenneT has carried out a successful test on the deployment of small decentralised plants for grid stabilisation

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

See article on single page

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

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

See article on single page