Ertan dam
| Ertan dam | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 |
|||||||||
|
|||||||||
|
|||||||||
| Coordinates | 26 ° 49 '17 " N , 101 ° 46' 52" E | ||||||||
| Data on the structure | |||||||||
| Construction time: | 1991-1999 | ||||||||
| Height above foundation level : | 240 or 245 m | ||||||||
| Building volume: | 410,000 m³ (?) | ||||||||
| Crown length: | 775 or 780 m | ||||||||
| Power plant output: | 3300 MW | ||||||||
| Data on the reservoir | |||||||||
| Water surface | 101 km² | ||||||||
| Storage space | 5,800 million m³ | ||||||||
| Total storage space : | 6,170 million m³ (?) | ||||||||
| Design flood : | 9600 m³ / s | ||||||||
The Ertan Dam is located on the Yalong , the longest tributary of the upper Yangtze River , in the circles Miyi and Yanbian the prefecture-level city of Panzhihua in southwestern China province of Sichuan .
The dam has a concrete arch dam as a barrier structure. With its height of 240 or 245 m (there are various statements) it is roughly on the 15th place of the highest dams on earth.
It was built to generate electricity from hydropower . The Ertan hydropower plant has an output of 3300 MW and is housed in an underground cavern . The cavern is the largest in Asia with its dimensions of length 280 m, width 25.5 m, height 65 m.
The electrical power is generated with six generators of 550 MW each. In the first year of operation, the power plant generated 3.9 billion kWh .
The construction work was awarded to a German-Chinese joint venture under the leadership of Philipp Holzmann . Also involved: Hochtief , Changjiang Gezhouba Engineering Bureau from China and Geoconsult from Austria for geotechnical advice. The total construction cost was $ 3.4 billion.
Four more hydropower plants with a total output of 9,050 MW are to be built on the Yalong, including the Lianghekou Dam , Jinping I and Jinping II.
The data in the table are partly uncertain or are given differently in different sources.
literature
- Claude Danielou: Le barrage d'Ertan en Chine, in: Travaux, December 1996.
- Dieter Stroh, Hans-Wilhelm Dorgarten: The Katse dam in Lesotho and the Ertan project in China, in: Wasserwirtschaft 85 (1995).
See also
- List of hydropower plants in China
- List of dams in China
- List of the largest dams on earth
- List of the largest reservoirs on earth
- List of the largest hydroelectric plants in the world
Web links
- Ertan dam. In: Structurae
- ERTAN HYDROPOWER PLANT, YALONG RIVER, CHINA
- with photos (PDF file; 649 kB)
- Ertan Dam (Lot A) China
