Black Sea Transmission Network
Encyclopedia
The Black Sea Transmission Network is a project for electric power transmission
from Georgia
to Turkey
.
with a total length of 247 kilometres (153.5 mi) will be built from the existing Gardabani
and Zestafoni substations to the new Akhaltsikhe
substation. The line between Gardabani and Akhaltsikhe will be 187 kilometres (116.2 mi), of which 86 kilometres (53.4 mi) is a rehabilitation of the existing line and 101 kilometres (62.8 mi) will be a new line. The line between Zestafoni and Akhaltsikhe is 59 kilometres (36.7 mi) long, of which 35 kilometres (21.7 mi) is a rehabilitation of the existing line and 24 kilometres (14.9 mi) will be a new line. The 500 kV overhead line will be a single-circuit transmission line.
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 (21.7 mi) of it will run in the territory of Georgia. 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
.
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). The project is developed by the Georgian state-owned transmission system operator Energotrans.
Electric power transmission
Electric-power transmission is the bulk transfer of electrical energy, from generating power plants to Electrical substations located near demand centers...
from Georgia
Georgia (country)
Georgia is a sovereign state in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the southwest by Turkey, to the south by Armenia, and to the southeast by Azerbaijan. The capital of...
to Turkey
Turkey
Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...
.
Technical description
The project foresees a rehabilitation and expansion of the existing transmission system. An overhead transmission lineOverhead lines
Overhead lines or overhead wires are used to transmit electrical energy to trams, trolleybuses or trains at a distance from the energy supply point...
with a total length of 247 kilometres (153.5 mi) will be built from the existing Gardabani
Gardabani
Gardabani is a town in the Georgian region of Kvemo Kartli, and the centre of the Garbabani district, located 39 km south of Georgia's capital Tbilisi.As of 2002, its population was 19,900 people. The town is roughly 70% Azeri-populated...
and Zestafoni substations to the new Akhaltsikhe
Akhaltsikhe
Akhaltsikhe is a small city in Georgia's southwestern region of Samtskhe-Javakheti. It is situated on the both banks of a small river Potskhovi, which separates the city to the old city in the north and new in the south. The name of the city translates from Georgian as "new fortress".- History...
substation. The line between Gardabani and Akhaltsikhe will be 187 kilometres (116.2 mi), of which 86 kilometres (53.4 mi) is a rehabilitation of the existing line and 101 kilometres (62.8 mi) will be a new line. The line between Zestafoni and Akhaltsikhe is 59 kilometres (36.7 mi) long, of which 35 kilometres (21.7 mi) is a rehabilitation of the existing line and 24 kilometres (14.9 mi) will be a new line. The 500 kV overhead line will be a single-circuit transmission line.
At Akhaltsikhe
Akhaltsikhe
Akhaltsikhe is a small city in Georgia's southwestern region of Samtskhe-Javakheti. It is situated on the both banks of a small river Potskhovi, which separates the city to the old city in the north and new in the south. The name of the city translates from Georgian as "new fortress".- History...
substation two back-to-back
Back-to-back connection
-Telecommunications:In telecommunications, a back-to-back connection is a direct connection between either:# the output of a transmitting device and the input of an associated receiving device...
high-voltage direct current
High-voltage direct current
A high-voltage, direct current electric power transmission system uses direct current for the bulk transmission of electrical power, in contrast with the more common alternating current systems. For long-distance transmission, HVDC systems may be less expensive and suffer lower electrical losses...
stations, each with a capacity of 350 MW will be installed. A 400 kV AC overhead line will connect it with Borçka
Borçka
Borçka is a town and district of Artvin Province in the Black Sea region of Turkey, on the border with Georgia.Borçka is reached by a winding road up from the Black Sea coast, alongside the Çoruh River. There is an ancient stone bridge across the river just west of the town.Borçka Lake is a popular...
substation in Turkey. About 35 kilometres (21.7 mi) of it will run in the territory of Georgia. 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
Siemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...
.
Financing
The project is financed by several European finance institutions. The European Investment BankEuropean Investment Bank
The European Investment Bank is the European Union's long-term lending institution established in 1958 under the Treaty of Rome. A policy-driven bank, the EIB supports the EU’s priority objectives, especially European integration and the development of economically weak regions...
and the European Bank for Reconstruction and Development
European Bank for Reconstruction and Development
Founded in 1991, the European Bank for Reconstruction and Development uses the tools of investment to help build market economies and democracies in 30 countries from central Europe to central Asia. Its mission was to support the formerly communist countries in the process of establishing their...
lend €80 million both while the German development bank KfW
KFW
KFW may refer to:*Keith Fullerton Whitman , an American musician*KfW or Kreditanstalt für Wiederaufbau, a German public-sector financial institution...
peovides €100 million in the form of a grant (€25 million) and a long-term loan (€75 million). The project is developed by the Georgian state-owned transmission system operator Energotrans.