1. CEE REGION ELECTRICITY POWER TRANSMISSION SYSTEMS. CURRENT STATE AND THE DEVELOPMENT PROSPECTS. Jacek WAŃKOWICZKrzysztof LIPKO Instytut Energetyki,EPC Consulting,Warszawa Poland

2. CONTENS CEE REGION AND EUROPEAN SYNCHRONOUS AREAS, HISTORICAL ASPECT, POLISH TRANSMISSION SYSTEM, ITS CURRENT STATE AND DEVELOPMENT UP TO 2020, CURRENT STATE AND DEVELOPMENT UP TO 2015 OF TRANSMISSION SYSTEMS IN CEE REGION, SUMMARY AND CONCLUSIONS

3. CEE REGION AND EUROPEAN SYNCHRONOUS AREAS Poland, Czech Republic, Romania, Slovakia, Bulgaria, Hungary, Slovenia – UCTE – installed generating capacity in Jan.2005 was 96 GW, in 2016 is expected to be about 105 GW, Poland, Czech Republic, Slovakia, Hungary – CENTREL – installed generating capacity in Jan.2005 was 66 GW, in 2016 is expected to be about 70 GW, Lithuania, Latvia, Estonia – UPS/IPS – installed generating capacity about 11 GW,

4. CEE REGION AND EUROPEAN SYNCHRONOUS AREAS

5. CEE REGION – HISTORICAL ASPECT

6. POLISH POWER TRANSMISSION SYSTEM. CURRENT STATE. Installed generating capacity about 34 GW VOLTAGE [kV] LENGTH OF TRANSMISSION LINES [ km ] 199020002003 750 114 400 399846604830 220 821281168119

7. POLISH POWER TRANSMISSION SYSTEM UP TO 2020

8. Line or Equipment nameVoltage LevelCommissioning DateMain Characteristics (single or double circuit line, length, AC lines or DC lines,…) Line Olsztyn-Matki220kV(planned) 2005Single, AC Line Tarnów-Krosno400kV(planned) 2006Single, AC Line Ostrów-Plewiska400kV(planned) 2006Single, AC Line Ostrów-Rogowiec Ostrów-Trębaczów 400kV(planned) 2008Double, AC Line Plewiska-Patnów400kV(planned) 2007Double voltage AC Line Plewiska-Grudziądz400kV(planned) 2010Double voltage AC Line Dunowo-Żydowo-Krzewina-Plewiska400kV(planned) 2012Double voltage AC Line Narew-Ełk-Matki400kVAfter 2008New AC line, upgrading of Ełk substation Line Byczyna (PL) – Varin (SK)400kVAfter 2010Double circuit AC Line Plewiska (PL) – Preilack (G)400kVAfter 2008New AC line Line Ełk (PL) – Alytus (LT)400kVAfter 2008New AC line with Back-to-Back, capacity 1000 MW

9. CZECH TRANSMISSION SYSTEM DEVELOPMENT UP TO 2011 Installed generating capacity 17.5 GW

10. CZECH TRANSMISSION SYSTEM DEVELOPMENT UP TO 2011 Line or Equipment nameVoltage Level Commissioning DateMain Characteristics (single or double circuit line, length, AC lines or DC lines,…) 2 nd line Slavetice (CZ) – Dürnrohr (AT) 400kV2006On the common towers with the existing line – V437  Further needs of the system: There is still the need of completing of the last section 400kV north-south link in Bohemia (to construct the 400kV line between the substations Cechy Stred and Bezdecin), supposed commissioning about 2008.  The construction of the 400kV line Krasikov-Horni Zivotice is planned by the year 2010 and 2 nd circuit of 400kV line Prosenice-Nosovice about year 2011.

11. SLOVAK TRANSMISSION SYSTEM DEVELOPMENT UP TO 2015 Installed generating capacity 8.3 GW

12. SLOVAK TRANSMISSION SYSTEM DEVELOPMENT UP TO 2015 Line or Equipment nameVoltage LevelCommissioning DateMain Characteristics (single or double circuit line, length, AC lines or DC lines,…) Lemesany (SK) – Moldava (SK)400kV2011Double circuit line R.Sobota or Moldava (SK) – Sajovanka (HU)400kVAfter 2011Double circuit line Varin (SK) – Byczyna (PL)400kV2015Double circuit line 2x400.110kV transformers on substation Krizovany (SK) 400/110kV2006 and 2008transformers 400/110kV transformer in substation Lemesany (SK) 400/110kV2007transformer Sucany-Medzibrod-Lipt. Mara (SK) line400kV2011Line Lemesany – V. Kapusany400kVAfter 2010New AC line Gabcikovo – Velky Dur400kV2011New AC tin line V. Kapusany (SK) – UA Border400kVAfter 2010New AC line

13. ROMANIAN TRANSMISSION SYSTEM DEVELOPMENT UP TO 2010 Installed generating capacity 18.3 GW

14. ROMANIAN TRANSMISSION SYSTEM DEVELOPMENT UP TO 2010 Line or Equipment nameVoltage LevelCommissioning DateMain Characteristics (single or double circuit line, length, AC lines or DC lines,…) OHL Gitinas-Bacua upgrading of line operation from 220kV to 400kV 400kV200755km, single circuit, AC line Bacau-Roman upgrading of line operation from 220kV to 400kV 400kV200759km, single circuit, AC line Roman-Suceava upgrading of the line operation from 220kV to 400kV 400kV200799km, single circuit, Ac line OHL Portile de Fier II – Cetate220kV200730km, doublr circuit, AC line OHL Oradea-Nadab400kV200785km, single circuit, AC line OHL Nadab (RO) – Bekescsaba (HU)400kV200730km, double corcuit, AC line OHL Nadab-Arad400kV200730km, single circuit, AC line OHL Suceava (RO) – Balti (MO)400kV2009150km, single circuit, AC line OHL Suceava – Gadalin400kV2010260km, single circuit, AC line OHL Portile de Fier I – Resita400kV2010117km, single circuit, AC line OHL Resita-Timisoara (actually operatinh al 220kV, double circuit) 400kV201073km, single circuit, AC line OHL Timisoara-Arad (actually operating al 220kV, double circuit) 400kV201054km, single circuit, AC line

15. TRANSMISSION SYSTEMS OF LITHUANIA, LATVIA AND ESTONIA Installed generating capacity 11 GW

16. CONCLUSIONS CEE Region combines countries being a new members of EU and countries being just before accession in 2007. Most of these countries were connected to UCTE synchronous area many years before their formal accession that in general confirms relatively high technical level of their electrical power sectors and in particular their transmission networks. Transmission infrastructure of many countries of the CEE Region, expecially 400 kV network, is inadeqately developt and requires significant investments, within a period of coming 10 – 15 years, for internal technical improvement of the systems and theirs interconnection to neighboring UCTE and UPS/IPS countries, Countries like PL, H, SK and RO located at the border of the UCTE synchronous area are already or will be connected to UPS/IPS countries by radial, island areas or by back to back stations. Since significant increase in generating capacity is not assumed in the next 10 years, the security of electric energy supply within the CEE Region is directly related to development of power transmission infrastructure.