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Regional Transmission Network Development: Implications for Trade and Investment

Regional Transmission Network Development: Implications for Trade and Investment. Facilitating East-West Electricity Trading Corridors: Lessons Learned from the UCTE-IPS/UPS Feasibility Study Matthias Luther Head of International Network Studies, Transpower

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Regional Transmission Network Development: Implications for Trade and Investment

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  1. Regional Transmission Network Development: Implications for Trade and Investment Facilitating East-West Electricity Trading Corridors: Lessons Learned from the UCTE-IPS/UPS Feasibility Study Matthias Luther Head of International Network Studies, Transpower November 11-12, 2009

  2. Lessons learned from the UCTE-IPS/UPS Feasibility Study Regional Transmission Network Development: Implications for Trade and Investment Istanbul, Turkey, 11-12 November 2009 Matthias Luther,

  3. UCTE-IPS/UPS Study – three major questions to answer Considering technical, organisational and legal issues the study has to answer the following questions: Is a synchronous coupling of the IPS/UPS with the UCTE feasible? What are the mandatory measures and requirements on both sides? What are the associated costs? Additionally, market aspects and environmental issues are building the conditional framework. First priority: maintaining the present performance of the systems with respect to system security and reliability.

  4. European Interconnected Transmission Systems Nordic Capacity: 94 GW Peak load: 66 GW Consumption: 405 TWh Population: 24 m Nordic IPS/UPS IPS/UPS Capacity: 337 GW Peak load: 215 GW Consumption: 1285 TWh Population: 280 m UK Ireland ex. UCTE ex. UCTE Capacity: 631 GW Peak load: 390 GW Consumption: 2530 TWh Population: 450 m Ireland/UK HVDC cable HVDC B2B HVAC cable Capacity: 85 GW Peak load: 66 GW Consumption: 400 TWh Population: 65 m

  5. Estonia = Latvia Russia Kaliningrad Finland Lithuania = Russia North-West Belarus Russia Ural Russia Siberia Russia Centre Russia Middle Volga Ukraine Mongolia Kazakhstan Russia South Kirgizstan Uzbekistan Moldova Georgia Tajikistan Azerbaijan Principle structure of the IPS/UPS

  6. 3000 MW 30 s Dynamic stability: profiles of wide area power oscillations

  7. Distribution of control power flow after an outage of 3,000 MW UCTE West UCTE Middle UCTE East UCTE South 1,820 Russia/Central Asia 510 1,100 70 1,190 560 Baltic States/Belarus/Kaliningrad 370 Ukraine/Moldova 80 Turkey all figures in MW

  8. TSO Synchronous coupled systems Interface Legal requirements: the proposed multi-layer contractual framework Legal Checklist InterzonalAgreement Bilateral / multilateral Agreements Liability Clause UCTE IPS/UPS

  9. Summary of major findings and results • The present structure and high utilization of the UCTE system cuts off long distance power transmission. • Short distance power transfer capacities across the interface of about 1,000 to 3,000 MW in the East-West direction, West-East transfers are limited to 1,000 MW. • A synchronous coupling would require the consideration of an additional Control Power Flow Margin (CPFM), which is not yet included in the definition of the Transmission Reliability Margin (TRM). • The dynamic stability reveals the most limiting criteria for system extensions. Severe disturbances trigger low frequency wide-area oscillations; maintaining dynamic stability requires countermeasures in generation and transmission. • In case of realisation: an overall complexity concerning the implementation of key organisational and legal frameworks.

  10. Common achievements • The generation of a unique data base for both synchronous areas. • Joint activities have established a huge network of experts from the IPS/UPS and the UCTE. • The installation of a Wide-Area Measurement-System (WAMS) in the IPS/UPS. • Setup of common analysis models individually verified. • A close cooperation in advanced application of innovative simulation methods and tools – the findings and results are based on a highly qualified scientific expertise. • A common understanding about the complexity of a synchronous coupling of the IPS/UPS with the UCTE. • A consensus by the study partners about the results. • A certain basis for the stakeholders concerned for taking decisions on next steps.

  11. Conclusions • A synchronous coupling between the UCTE and the IPS/UPS has to be considered as a long term option due to the implementation of several necessary technical, operational and organizational measures and establishing the legal framework. • The construction of High Voltage Direct Current (HVDC) links between the interface countries may be considered as a medium-term alternative. However, this will need separate investigations and the decisions by the stakeholders concerned. • The findings and results now allow stakeholders to initiate further activities.

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