Laúca Hydroelectric Power Station
Power station in Angola
From Wikipedia, the free encyclopedia
The Laúca Hydroelectric Power Station is a 2,070 MW (2,775,916 hp) hydroelectric power plant in Angola. It is the largest power station in the country.[2]
| Lauca Dam | |
|---|---|
| |
Location of Lauca Dam in Angola | |
| Country | Angola |
| Location | Dombo-Ya-Pepe, Malanje Province[1] |
| Coordinates | 09°44′22″S 15°07′33″E |
| Purpose | Power |
| Status | Operational |
| Construction began | 2012 |
| Opening date | December 2020 |
| Construction cost | US$4.3 billion |
| Owners | Angola Ministry of Water and Energy |
| 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 mi2) |
| Power Station | |
| Commission date | 4 August 2017 |
| Type | Conventional |
| Hydraulic head | Main plant: 200 m (660 ft) Ancillary: 128 m (420 ft) |
| Turbines | Main plant: 6 x 338 MW Francis-type Ancillary: 1 x 42 MW Francis-type |
| Installed capacity | Main plant: 2,028 MW Ancillary: 42 MW Total: 2070 MW |
| Annual generation | 8,640 GWh |
Location
The power station sits across the Kwanza River at the border between Angola's Cuanza Norte Province and Malanje Province. The Laúca Power Station, is located approximately 47 kilometres (29 mi) downstream of the Capanda Hydroelectric Power Station.[3] This is approximately 280 kilometres (174 mi) by road, southeast of Luanda, the capital and largest city in the country.[4] The geographical coordinates of Laúca Hydroelectric Power Station are:09°44'22.0"S, 15°07'33.0"E (Latitude:-9.739444; Longitude:15.125833).[5]
Overview
Construction of the biggest hydroelectric power installation in Angola began in 2012.[3][6] The first 338 megawatts generator of the 2,070 megawatts power station was commissioned on 4 August 2017, when the power plant was officially inaugurated by President José Eduardo dos Santos, the president of Angola at that time.[7] In July 2019, the fifth turbine, out of six main generating units, was installed.[8] The last turbine (70 MW), came online in September 2023.[2]
The power generated is integrated into the national electricity grid and supplies energy to approximately 8,000,000 customers in Angola. The project has provided over 8,000 direct jobs during the construction phase.[9]
Technical specifications
The 132 m (433 ft) tall roller-compacted concrete dam will withhold a reservoir of 5,482,000,000 m3 (1.936×1011 ft3), with a surface area of 188 square kilometres (46,000 acres).[3]
The reservoir will supply two hydroelectric power stations, a main and an ancillary. The main will contain six 338 MW Francis turbine-generators and the ancillary a single 42 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.[10]
Later, the specifications were modified to six 334 megawatts generators for the main and one 70 megawatts generator for the ancillary.[1][2]
Funding
The dam and power station will cost US$4.3 billion. In the beginning the project received partial funding from the government of Brazil.[3] Following a corruption scandal involving the government of Brazil in 2016, that line of credit was terminated, leaving a funding gap.[7] The government of Angola turned to commercial lenders in order to raise the necessary funding to complete the project. The table below illustrates the sources of funding for the Laúca Hydroelectric Power Station.[7]
| Rank | Development Partner | Amount Funded | Purpose | Notes |
|---|---|---|---|---|
| 1 | Government of Brazil[3] | Dam | Loan | |
| 2 | Government of Angola[3] | Dam and Transmission | Investment | |
| 3 | Standard Chartered Bank[7] | €247.8 million | Transmission | Loan |
| 4 | Development Bank of Southern Africa[7] | $5 million | Dam | Loan |
| 5 | Standard Chartered Bank[7] | €220.5 million | Dam | Loan |
| 6 | Gemcorp Capital[7] | $150 million | Dam | Loan |
| Total | US$4,300 million | |||
