Sơn La Dam

 dam, hydroelectric power station/plant

1. Project to build Son La hydro-electric power by the Electricity Corporation of Vietnam is the investor, including:
- Works clue: the main dam, spillway at Pa Vinh II, concrete gravity structures;
- Structures: Intake; pressure water pipelines; following hydroelectric dam with 6 units; substation, power distribution stations outdoors;

- Transmission lines 220-500 kV connection factory with the national electricity system;

- The management and operation; houses of officials and employees operate the plant;

2. Project re sedentary (according to management areas) by the provincial People's Committees of Son La People's Committee of Lai Chau province, the provincial People's Committee of Dien Bien is an investor.

3. Project construction traffic to avoid flooding by the Ministry of Transport as the investor.

* The construction site: the main work of Ong At a commune, Muong La district, Son La province. Reservoirs under some communes, districts and the province of Son La, Lai Chau and Dien Bien.

* Investment objectives Son La Hydropower Project:

- Provides power source for economic development - social, serving the industrialization and modernization of the country.

- Contribute to flood during the wet and dry season water supply for the Delta.

- To contribute to promoting economic development - social Northwest.

* The main parameters:
+ Catchment area: 43,760 km2.

+ Entire reservoir capacity: 9.26 billion m3.

+ Capacity for downstream flood control: 7.0 billion m3 (including Hoa Binh)

+ Helpful Capacity: 5.97 billion m3.

+ Normal water level (MNDBT): 215 m.

Water + Strength: 218.45 m (corresponding to the flood frequency 0.01%).

+ Check the water level: 231.43 m (corresponding to the PMF flood).

NLM + Installed capacity: 2,400 MW.

+ Capacity ensure NDB: 614 MW (of which up to 107MW of Peace).

+ Electrical average annual amount E0: 9.429 billion kWh.

+ Class of building: Provide special.

* The major work items and the solution structure:

+ Key works including the main dam, spillway at Pa Vinh II, concrete gravity structures.

+ Structures include: Intake, pressure water pipelines, hydroelectric power the dam with 6-8 units; substation, power distribution stations outdoors.

+ Control system, security, communications, defense, fire ... Vietnam standards and reference standards applied abroad.

+ Electrical connection to the national electricity system with lines 220-500 kV

+ The management and operation.

+ House officials and personnel management, plant operation.

* Total investment: USD 36,933,000 million (excluding interest during construction, the third quarter of 2002 prices, exchange rate 1USD = 15,450 VND)
* The plan for capital Son La Hydropower Project mobilization and debt: according to Document No. 5170/TTr/BCN-BTC November 14, 2003 of the Ministry of Industry - Finance.