The Three Gorges Dam, the country’s largest hydropower project, has generated more than 700 billion kilowatt-hours of electricity since it started operation a decade ago, news portal people.com.cn reported Sunday, citing data from China Three Gorges Corporation.As of 10 am Saturday, the total electricity output of the project amounted to 700.835 billion kilowatt-hours, equivalent to one-seventh of the country’s total power consumption last year, the report said.From 2003 to 2012, the Three Gorges Dam has generated over 629.1 billion kilowatt-hours of electricity. In 2012 alone, it set a record by generating 98.1 billion kilowatt-hours of electricity, equivalent to 14 percent of the country’s total hydroelectric power output last year, according to the report.Generating electricity is one of the Three Georges Dam’s three major functions, with the other two being flood control and navigation.
|Three Gorges dam: Fact Sheet|
Concrete pouring to form the world’s biggest dam, a giant that spans the Yangtze River near Yichang in central China, was completed on May 20, 2006. In 2008, the dam authority attempted to fill the reservoir but stopped due to fears that it would trigger landslides in the upstream area of the reservoir. In 2009, they attempted to fill the reservoir again but, due to a severe drought downstream of the dam in the middle Yangtze valley, the dam authority was ordered to release water. Finally, on October 26, 2010, the reservoir was filled to its “Normal Pool Level” of 175 metres above sea level.
|LocationThe Three Gorges Dam is located at Sandouping, near Yichang, Hubei province, just downstream of Xiling Gorge, the easternmost of the Three Gorges.It is situated in the middle section of the Yangtze (Changjiang), which is the longest river in Asia and third longest in the world, running 6,211 km from the Qinghai-Tibet plateau to the East China Sea near Shanghai.|
|Chinese||China Three Gorges Corporation (CTGPC).|
|Foreign||For information on financiers and companies supplying equipment and services to the project, see Who’s Behind China’s Three Gorges Dam.|
|Type||Concrete gravity dam.|
|Length||2,309 metres (2.3 km)|
|Coordinates||30° 49′ 48″ N., 111° 0′ 36″|
|Official cost||Recently revised from US$25 billion to US$22.5 billion (180 billion yuan).|
|1994||Premier Li Peng formally launches construction of the project at the dam site on Dec. 14.|
|1997||Yangtze dammed on Nov. 8.|
|2002||Left bank concrete pouring completed.|
|2004||Third and final construction phase (2004-09) begins.|
|2006||Concrete pouring on the right bank of the dam finished May 20.|
|2008||Revised completion date for the entire project.|
|2009||Original target for completion of the whole project.|
|2010||The reservoir was finally filled to 175 metres, or NPL (Normal Pool Level), on October 26, 2010.|
|Left (north) bank||
|Right (south) bank||
|Update from 2013: The Three Gorges Dam, the country’s largest hydropower project, has generated more than 700 billion kilowatt-hours of electricity since it started operation a decade ago. (Source: people.com.cn citing data from China Three Gorges Corporation). See this Global Times news update published on October 20, 2013.
According to the people.com.cn report, Global Times writes:
As of 10 am Saturday, October 19, 2013, the total electricity output of the project amounted to 700.835 billion kilowatt-hours, equivalent to one-seventh of the country’s total power consumption in 2012.
From 2003 to 2012, the Three Gorges Dam has generated over 629.1 billion kilowatt-hours of electricity. In 2012 alone, it set a record by generating 98.1 billion kilowatt-hours of electricity, equivalent to 14 percent of the country’s total hydroelectric power output last year, according to the report.
Generating electricity is one of the Three Georges Dam’s three major functions, with the other two being flood control and navigation.
|2005||49.1 billion kilowatt-hours|
|2009||84.7 billion kWh|
|2010||84.37 billion kWh|
|2011||100 billion kWh|
|Power distribution Three Gorges electricity will be distributed to state grid companies in different jurisdictions as follows:|
|Central China||52 per cent|
|Eastern China||32 per cent|
|Guangdong province||16 per cent|
|Average selling price||3.0 US cents per kWh|
|Plus transmission charge||0.8 US cents per kWh|
(impounded water behind the dam)
|About 65 metres above sea level.|
(after it has been raised to 175 metres above sea level)
|Width||1.1 km (average)|
|Area||1,084 sq km|
|Land submerged||632 sq km (in 20 counties located in Chongqing municipality and Hubei province)|
|Water volume||39 billion cubic metres|
|Three Gorges Dam and Earthquakes|
- The Jiuwanxi Fault – 17 km upstream of the dam.
- The Zigui-Badong fault – 80 km upstream of the dam, was responsible for a M3 earthquake on the Richter Scale shortly after the initial filling of the reservoir began in 2003.
- More than 3,377 earthquakes have been recorded in key monitoring areas in Badong between July 2003 – December 2007.
|July-August 2006||Reporting on a field trip to the Three Gorges reservoir, the USGS stated that at least 14 old landslides are considered likely to be reactivated by the filling of the reservoir. The following four landslides were observed along the reservoir:
Further readings and updates: