Kafue Gorge HPP was constructed on the Kafue River. HPP structures: the powerhouse, transformer station, headrace tunnel, tailrace tunnel and vertical shafts were executed in granite massif using underground excavation method.
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Employer |
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Zambia, ZESCO– Zambia Electricity Supply Corporation, Lusaka |
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Hydroelectric power plant |
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underground power house |
135.0 x 16.0 x 27.0 |
m |
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turbines |
6 |
pcs |
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rated power |
900 |
MW |
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substation |
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transformer station |
125.0 x 17.0 x 18.0 |
m |
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Headrace tunnel |
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length |
10,600 |
m |
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tunnel mouth |
117 |
m2 |
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access tunnels length |
850 |
m |
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Tailrace tunnel |
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length |
1,500 |
m |
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tunnel mouth |
117 |
m2 |
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vertical shafts (six shafts) |
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length |
6 x 430.0 |
m |
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penstock diameter |
3.30 and 2.75 |
m |
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access tunnel length |
700 |
m |
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Cables and lift shafts |
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length |
530 |
m |
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cross-section area |
29 |
m2 |
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Tunnel boring |
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excavation in hard rock |
1.85 x 106 |
m3 |
