International Cooperation


In July 2009, the European Network of Transmission System Operators for Electricity (ENTSO-E) became fully operational, with PSE as one of its members. ENTSO-E was set up by 42 transmission system operators from 34 countries in response to the solutions proposed in the Third Liberalisation Package. The arrangement was made in anticipation of the adoption of legislative instruments in the Package, owing to the need for transmission system operators to actively participate in the process of rulesetting for the European energy market and the need for quick and effective planning of the pan-European transmission grid and the approval of the European grid codes.

The objective of ENTSO-E is to promote the reliable operation, optimal management and sustainable development of the pan-European electricity transmission system in order to ensure security of supply and to meet the needs of the Internal Energy Market.

The activities pursued so far by the ETSO and UCTE organisations and by the regional operator associations of the Nordic and Baltic countries as well as the UK and Ireland, were incorporated by ENTSO-E, which, as the only organisation of transmission system operators, issues coherent positions and represents the operators in relations with stakeholders, including the EU Institutions and bodies, and regulator associations – ERGEG/CEER, and in the future - the Agency for Cooperation of Energy Regulators (ACER).

ENTSO-E is governed by its Assembly while the activities of the organisation are managed by the Board, with a representative of PSE as its Vice Chairperson. The working structure of ENTSO-E is governed by three Committees: System Development  Committee, System Operation Committee and Market Committee. The legal support for the structure provides Legal and Regulatory Group. 
PSE is represented in every Committee as well as Legal and Regulatory Group. Within the structure of the Committees there have been established Working Groups for the activities of the pan-European scope and Regional Groups, responsible for the tasks relevant to the specifity of the particular region and synchronously operating systems (former UCTE area, Nordel, Baltic countries and others). Representatives of PSE are active members in most of the working structures.

ENTSO-E undertook a number of new duties, compared to the ones performed so far, with special regards to the tasks specified in Regulation No 714/2009, including the elaboration of the grid codes in areas addressed by the European Commission as the priority areas, preparing a non-binding Community wide ten-year network development plan as well as generation and network adequacy outlooks.

The tasks to be performed in the year 2010 have been indicated in the ENTSO-E Work Programme, which after consultations with stakeholders and approval by the Assembly, has been published on the ENTSO-E webpage:


Electricity Regional Initiative (ERI) of ERGEG

Since 2006, PSE has been involved in cooperation in a group of eight TSOs from the Central and Eastern European region, covering a part of Germany, Austria, Poland, the Czech Republic, Slovenia, Hungary and Slovakia. The operators: PSE S.A., ČEPS, a.s., VE-T GmbH, SEPS, a.s., E-ON Netz GmbH, MAVIR, APG and ELES cooperate with the regulators from the region within the working structures set up by ERGEG for ERI, via the annual Miniforum and meetings of the Implementation Group. The operators from the CEE region participate in a coordinated congestion management mechanism for the cross-border exchange and the allocation of transmission capacity to market participants by auctions. The transmission system operators have established Central Allocation Office based in Freising, Germany, which conducts preparatory work for  the implementation of the flow based allocation method and managing cross-border congestion with the use of an appropriate IT infrastructure.

Cooperation aimed to improve the operational security of the integrated transmission systems of Central Europe

In December 2008, eleven transmission system operators from the Czech Republic, Germany, Austria, the Netherlands, Switzerland and Poland entered into an agreement on the improvement of operational security of the integrated transmission systems in the Central European region. The project was initiated owing to: increasing requirements regarding the operation under conditions of rapid development of the wind power industry, growth of cross-border trade, and growing needs for the transmission of electricity. The operators participating in the initiative declared the intent to develop common criteria for the assessment of operational security of the integrated systems and to ensure free data exchange. The achievement of those goals will be helped by an IT platform as a common tool for data sharing and security assessment, and the use of the data for the identification of remedial measures. Through the structures established, the representatives of PSE actively participate in the Steering Committee, the expert group for system operation security, and in working groups.


In 2007, PSE entered into a cooperation agreement with the transmission system operators of Lithuania, Latvia and Estonia with the objective to integrate the electricity markets of the Baltic countries with the EU internal electricity market. Its signatories undertook to define feasible common technical, economic, financial, regulatory and organisational solutions. The representatives of PSE in the Steering Committee and a working team were involved in the preparation of static power flow analyses. As of the beginning of 2008, PSE and the five transmission system operators from Lithuania, Latvia, Estonia, Finland and Sweden signed a Memorandum of Understanding on the planning and coordination of development of transmission systems in the Baltic region. In implementing its provisions, the signatories evaluated the market effectiveness of connections in the region, and a relevant analysis was prepared. Further work under the Multiregional Planning Project is carried on by the ENTSO-E Baltic Sea Regional Group. The interconnection of the transmission systems of the Baltic Sea region, isolated from Central and Eastern Europe, was included as a priority task in the European energy policy. The European Commission (EC) launched accelerated implementation of the Baltic Interconnection Plan. The work led by the EC was carried on with the involvement of the representatives of the governments of Lithuania, Latvia, Estonia, Sweden, Finland, Denmark, Germany, Norway and Poland, as well as the regulatory bodies and TSOs from those countries, including PSE. The Plan approved during the Swedish presidency will be incorporated and implemented under the Baltic Sea Region Strategy.


European Wind Integration Study

A rapid development of wind generation and a growing share of electricity derived from that source have prompted fifteen operators from the Continental Europe Synchronous Area (former UCTE) and from other, much smaller synchronous systems in Europe, to take joint measures aimed at resolving the issue of unplanned flows related mainly to wind generation. Therefore PSE is participating in the European Wind Integration Study (EWIS), which covers the technical and market aspects of the development of the wind power industry and the impact of wind generation on the secure operation of power systems in Europe. PSE has been represented in the Steering Committee and in four working groups.

Cooperation with 50Hertz


TSO Security Cooperation (TSC)

PSE, along with ten other TSOs from Central Europe, established a regional group, Transmission System Operators Security Cooperation (TSC), in 2008 and undertook to cooperate for the purposes of increasing the secure operation of the inter-connected power systems in the region.

Read more about the initiative at