Black Sea Transmission Network

Black Sea Transmission Network
Location
Country Georgia
Turkey
General direction north–south
From Gardabani
Zestafoni
Passes through Akhaltsikhe
To Borçka
Ownership information
Operator Energotrans
Construction information
Contractors Siemens
Construction started 2010
Expected 2013
Technical information
Type overhead line
Type of current AC/HVDC/AC
Total length 283 km (176 mi)
Power rating 700 MW
AC Voltage 500/400 kV
DC Voltage 96 kV
Number of circuits 1

The Black Sea Transmission Network is a project for electric power transmission from Georgia to Turkey.

Technical description

The project foresees a rehabilitation and expansion of the existing transmission system. An overhead transmission line with a total length of 247 kilometres (153 mi) will be built from the existing Gardabani and Zestafoni substations to the new Akhaltsikhe substation situated at 41°42′26″N 43°06′35″E / 41.70722°N 43.10972°E / 41.70722; 43.10972 (Akhaltsikhe HVDC back-to-back Static Inverter Plant). The line between Gardabani and Akhaltsikhe will be 187 kilometres (116 mi), of which 86 kilometres (53 mi) is a rehabilitation of the existing line and 101 kilometres (63 mi) will be a new line. The line between Zestafoni and Akhaltsikhe is 59 kilometres (37 mi) long, of which 35 kilometres (22 mi) is a rehabilitation of the existing line and 24 kilometres (15 mi) will be a new line. The 500 kV overhead line will be a single-circuit transmission line.[1]

At Akhaltsikhe substation two back-to-back high-voltage direct current stations, each with a capacity of 350 MW will be installed. A 400 kV AC overhead line will connect it with Borçka substation in Turkey. About 35 kilometres (22 mi) of it will run in the territory of Georgia.[1] The first HVDC back-to-back station would be operational in May 2012 and the second one in May 2013. This link will be built by Siemens.[2][3]

Financing

The project is financed by several European finance institutions. The European Investment Bank and the European Bank for Reconstruction and Development lend €80 million both while the German development bank KfW peovides €100 million in the form of a grant (€25 million) and a long-term loan (€75 million, €20 million Development Bank of Austria, w:de:Oesterreichische Entwicklungsbank (OeEB) risk participation).[4][5] The project is developed by the Georgian state-owned transmission system operator Energotrans.[2][3]

See also

References

  1. 1 2 "EIB - Black Sea Transmission Network Project (GE-Tbilisi)". Development Gateway, Inc. Retrieved 2010-08-25.
  2. 1 2 "Black Sea HVDC interconnection work awarded to Siemens". Power Engineering International. PennWell Corporation. 2010-08-24. Retrieved 2010-08-25.
  3. 1 2 van Loon, Jeremy (2010-08-24). "Siemens to Install High-Voltage Power Line, Connecting Georgia and Turkey". Bloomberg. Retrieved 2010-08-25.
  4. ↑ "Black Sea Power Transmission Project, Georgia". Global Transmission Report. 2010-05-01. Retrieved 2010-08-25.
  5. ↑ "Improving Power Infrastructure in Georgia" (Press release). KfW. 2010-04-14. Retrieved 2010-08-25.

http://www.energy.siemens.com/us/pool/hq/power-transmission/HVDC/HVDC-Classic/pm-pdf/EPT201008116e.pdf

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