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  •  NG Dam and PowerhouseTransform THXP Dec 2011 0842

    Reservoir Full Supply Level 455 metres above sea level
    Max Effective Storage Volume       2,262 million cubic metres
    Roller Compacted Concrete Dam 65 m high (upstream face); 480 m long
    Dam Discharge Capacity 10,700 m3 (five radial gates)
    Net Head 47 m
    Turbines 2 x 30-MW Francis Units: 60 MW for domestic use


     TH Dam and PowerhouseInlet valve

    Reservoir Full Supply Level 400 metres above sea level
    Reservoir Operating Volume   29 million m3
    Net Head 230 m
    Concrete Gravity Free-Overflow Weir         27 m high; 330 m long (weir and gates combined)
    Two Concrete-Lined Headrace Tunnels Length: 5,289 m and 5,496 m
    Turbines two 120-MW Francis Units (original project - turbines upgraded)
    one 220-MW Francis Unit (expansion project)

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