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| Gezhouba Dam |
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The experimental dam of the TGP- Gezhouba Project is located at the
lower end of the Three Gorges in the suburb of Yichang City, 38 km
downstream of the TGP.
The construction of the Gezhouba Project started on December 30,
1970 and ended on December 10,1988. The Dam is 2606.5 meters high,
with a total storage capacity of 1.58 billion m3 and a maximum flood
discharging capability of 110,000 m3/s. The two hydro-electric plants
have 21 generating units with a total installed capacity of 2.715
million kw and annual output of 15.7 billion kwh, which is transmitted
to Shanghai, Henan, Hunan,Wuhan,etc. The annual one-way shipping
capacity of the navigation facilities is 50 million tons and its
total investment was 4.848 billion yuan($0.557 billion) .Gezhouba
Hydropower Plant generated a total of 140 billion kwh of electricity
between 1981,when the first generating unit went into operation,
and May, 1991, creating a total output value of 12 billion yuan($1.38
billion).
Gezhouba Project is a cascade which regulates the tailwater flow
from the TGP and improves the navigation conditions between the
two dams. After completion of the TGP,the annual guaranteed output
of electricity from Gezhouba Hydro-power Plant will increase by
about 430,000 kw. Therefore the two projects are considered as twins
through thick and thin. |
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