Laúca Dam

Lauca Dam
Location of Lauca Dam in Angola
Country Angola
Location Gomespan, Erbil Governorate
Coordinates 9°44′34.9″S 15°07′32.2″E / 9.743028°S 15.125611°E / -9.743028; 15.125611Coordinates: 9°44′34.9″S 15°07′32.2″E / 9.743028°S 15.125611°E / -9.743028; 15.125611
Purpose Power
Status Under construction
Construction began 2012
Opening date August 2017
Construction cost US$4.3 billion
Dam and spillways
Type of dam Gravity, roller-compacted concrete
Impounds Cuanza River
Height 132 m (433 ft)
Length 1,075 m (3,527 ft)
Dam volume 2,750,000 m3 (3,600,000 cu yd)
Spillway capacity 10,020 m3/s (354,000 cu ft/s)
Reservoir
Total capacity 5,482,000,000 m3 (4,444,000 acre⋅ft)
Surface area 188 km2 (73 sq mi)
Commission date 2017-2018 (est.)
Type Conventional
Hydraulic head Main plant: 200 m (660 ft)
Ancillary: 128 m (420 ft)
Turbines Main plant: 6 x 334 MW Francis-type
Ancillary: 1 x 65.5 MW Francis-type
Installed capacity Main plant: 2,004 MW
Ancillary: 65.5MW
Total: 2069.5 MW
Annual generation 8,640 GWh (est.)

The Lauca Dam is a gravity dam currently being constructed on the Cuanza River in Angola. It is situated on the borders of Cuanza Norte, Cuanza Sul and Malanje Provinces. Construction began in 2012. The first generator of the 2,069.5 MW power station was commissioned on August 4th 2017, when the power plant was officially inaugurated by President José Eduardo dos Santos.[1] The dam and power station will cost US$4.3 billion, funded in part by the Government of Brazil. When complete, it will be the largest power station in the country.[2]

The 132 m (433 ft) tall roller-compacted concrete dam will withhold a reservoir of 5,482,000,000 m3 (4,444,000 acre⋅ft). The reservoir will supply two hydroelectric power stations, a main and an ancillary. The main will contain six 334 MW Francis turbine-generators and the ancillary a single 65.5 MW Francis unit. The ancillary power station will operate most often, to maintain a minimum 60 m3/s (2,100 cu ft/s) ecological flow of the river.[3]

References

  1. ↑ "PR inaugura barragem de Laúca". portaldeangola. 4 August 2017. Retrieved 6 August 2017.
  2. ↑ "Lauca dam, in Angola, starts producing energy in 2017". Macau Hub. 30 October 2015. Retrieved 20 June 2016.
  3. ↑ "LAÚCA HYDROPOWER DEVELOPMENT" (PDF). COBA. Retrieved 20 June 2016.
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