Integration of the IPS of Ukraine into the pan-European power system ENTSO-E is one of the key strategic goals of NPC Ukrenergo.
This is an important component of Ukraine’s energy security, as the synchronous operation of the Ukrainian power system with ENTSO-E will increase the reliability and sustainability of the IPS of Ukraine, expand electricity exchange possibilities between neighbouring countries, increase competition in the domestic market and create opportunities for operation within the European energy market.
Integration of the IPS of Ukraine into the pan-European ENTSO-E power system is provided for in the Association Agreement between Ukraine and the EU.
Starting from 1 July 2003, a part of Ukraine’s power system “Burshtyn Island” (Burshtynska TPP, Kaluska CHPP and Tereble-Ritska HPP, as well as trunk, interstate and distribution networks, 4% of total production and consumption in Ukraine), has been operating synchronously with the network of Continental Europe. At the same time, the “island” is physically disconnected from the main part of Ukraine’s power system. Electricity is exported from the “island” to Hungary, Slovakia and Romania. With the introduction of a new electricity market model in Ukraine on 1 July 2019, it became possible to import electricity to the island’s trade zone, as well as to the main part of the IPS of Ukraine (from Belarus, Russia and Moldova).
In 2000-2002, in order to synchronise the operation of the “island” with the European power system, the management and control systems of the “island” were modernised in accordance with the requirements of UCTE (now ENTSO-E). For the same purpose, the “island” also went through a one-year testing in the regime of “parallel operation.”
The issue of expanding the ENTSO-E synchronous zone due to the connection of the IPS of Ukraine was raised in 2005.
Chronology of events
2006 – Romanian transmission system operator Transelectrica applied for the expansion of the ENTSO-E synchronous zone through the connection of the IPS of Ukraine and the power system of Moldova.
May 2006 – The Steering Committee of ENTSO-E (formerly UCTE) accepted the application and launched a feasibility study for the integration of Ukraine’s IPS and Moldova’s power system into ENTSO-E. Stages of the integration included: 1) study of the power systems of Ukraine and Moldova and determination of necessary measures to ensure synchronous operation; 2) implementation of measures in the power systems of Ukraine and Moldova; 3) testing in the island mode and test synchronous operation of power systems of Ukraine and Moldova with ENTSO-E.
2015 – A study was conducted on the possibility of synchronous integration of the Ukrainian and Moldovan power systems into ENTSO-E, which confirmed the possibility of integration subject to certain technical measures.
2016 – Work of the Ukraine/Moldova Project Group on the development of the Catalogue of Measures, the Roadmap and the draft Agreement on the conditions for the future interconnection of the power system of Ukraine with the power system of Continental Europe (ENTSO-E).
28 June 2017 – In Brussels, during the ENTSO-E General Assembly, Ukrenergo signed an Agreement on the conditions for the future interconnection of the power system of Ukraine with the power system of Continental Europe, which entered into force on 7 July 2017. The agreement consists of the Catalogue of measures, the unconditional implementation of which is required for making a decision on the integration of power systems, the list of necessary additional studies and the integration Roadmap. The deadline for the implementation of all activities of the Catalogue and synchronisation of the Ukrainian and European power systems is scheduled for 2023. The parallel operation with ENTSO-E will be preceded by testing of the IPS of Ukraine in an isolated mode (such studies are scheduled for 2022). Based on their results, a decision will be made on the transition of the power systems of Ukraine and Moldova to parallel operation with ENTSO-E.
8 November 2017 – NPC Ukrenergo, NNEGC Energoatom, PrJSC Ukrhydroenergo, LLC DTEK Energo, PJSC Tsentrenergo and PJSC Donbasenergo signed a Memorandum of joint activities regarding the integration of the IPS of Ukraine into ENTSO-E.
End of 2018 – Operation Agreement was signed between NPC Ukrenergo and SE Moldelectrica, the system operator of Moldova, on the establishment of a control unit within the power systems of Ukraine and Moldova. Ukrenergo acts as a leader of the unit.
22 January – 26 April 2019 – tests of automatic excitation control systems (AEC) and automatic turbine speed control systems (ASC) at 11 power units of 8 Ukrainian power plants (TPP, CHPP and HPP) with the participation of representatives of NPC Ukrenergo, US Energy Association USEA, Turkish EPRA and Ukrainian DMCC.
30 April 2019 – establishment of the Consortium of ENTSO-E system operators consisting of the TSO of Germany, Poland, Slovakia, Hungary, Romania and Serbia to study the possibility of synchronisation of the power system of Ukraine and Moldova with ENTSO-E.
18 April 2019 – Operation Handbook, a key document of ENTSO-E, which established common procedures and processes of interaction and cooperation among European TSOs, expired. Instead, the Synchronous Area Framework Agreement (SAFA) was adopted. This required adapting the requirements of the Catalogue of measures of the Interconnection Agreement to the new requirements. NPC Ukrenergo has formed a team of volunteers to analyse the differences between Operation Handbook and SAFA in order to update the Catalogue of measures in cooperation with the Regional Group Continental Europe.
5 August 2019 – an agreement was signed between NPC Ukrenergo and PSE of Poland on the provision of emergency assistance.
4 September 2019 – Operation Agreement was signed between NPC Ukrenergo and Hungarian MAVIR. The document establishes rules and requirements for interaction between TSOs during parallel operation of the power systems.
12 September 2019 – Service Contract was signed between NPC Ukrenergo and the Consortium of ENTSO-E system operators to create a joint mathematical model of synchronous operation of Ukrainian and European power systems, which provides for the performance of studies on dynamic and steady state stability of power systems of Ukraine and ENTSO-E. Based on the results of the analysis, conclusions will be formed, which will constitute a basis for deciding on the possibility of synchronous interconnection of the power system of Ukraine with ENTSO-E.
25 November 2019 – increase in cross-border capacity between Ukraine and Slovakia from 400 MW to 600 MW.
11 February 2020 – presentation by Ukrenergo of the updated Catalogue of Measures (taking into account SAFA requirements) at the plenary meeting of the ENTSO-E Regional Group Continental Europe (RG). Ukrenergo received from the RG the confirmation of the synchronisation date – 2023.
9 June 2020 – Ukrenergo successfully reported to the RG on the implementation of the Catalogue of Measures of the Agreement.
Q4 2020 – testing of excitation systems at NPPs. Certification of NPC Ukrenergo as an independent European-style TSO.
Q2 2021 – additional studies: steady state calculations in terms of synchronous interconnection of power systems of Continental Europe and Ukraine/Moldova and the performance of required dynamic studies of the system.
2022 – test operation of the power system in the island mode.
Q1 2023 – the beginning of operation of the IPS of Ukraine in synchronous mode with ENTSO-E.