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Castrelo

History of Castrelo

Castrelo plant consists of a run-of-the-river plant built in 1956 with a diversion dam built in brickwork, from where the water is taken.

A diversion channel, with various branches set in the hillside and in tunnels, leads the water to the load chamber.

Power plant facilities

  • It is 13 m high and a crest length of 76 m
  • The maximum normal capacity of the reservoir is 0.1 hm3
  • The plant's penstock is made of steel, with a diameter of 2.1 m and a length of 450 m
  • Three vertical axis Francis type turbines allow a highly efficiently operation with a wide range of flow volumes. One of these holds a nominal flow of 3.18 m3/s, a nominal power of 6.030 kW and 600rpm speed. The other two both were designed for a nominal flow of 6.41 m3/s, power of 12.280kW and rotation speed of 750rpm.

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