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Vietnam, Yali - vn/12


  Total of 16 km of tunnels being driven with two headraces 3.7 km x 8 m-diameter and four pressure tunnels 500 m-long and 4.5 m-diameter. Powerhouse is 30 m high, 120 m long and 40 m wide and will accommodate four 175 MW turbines. June 1996.