The Trung Sơn Dam (''Dự Án Nhà máy Thủy điện Trung Sơn'') is a
hydroelectric
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other Renewable energ ...
power station on the
Ma River
Ma, MA, or mA may refer to:
Academia
* Master of Arts, a degree award
* Marin Academy, a high school in San Rafael, California
* Menlo-Atherton High School, a public high school in Atherton, California
* Minnehaha Academy, a private high sch ...
in northwestern
Vietnam
Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...
. Located in the Trung Sơn commune,
Quan Hóa District,
Thanh Hóa Province, it is approximately southwest of
Hòa Bình city, and northwest of Thanh Hóa city. The dam created a reservoir which covers a large area of the
Mường Lát and Quan Hóa Districts in the Thanh Hoa province as well as part of the
Mộc Châu
Mộc Châu ə̰ʔwk˨˩:ʨəw˧˧is a ward of Sơn La province in the Northern Midlands and Mountains region of Vietnam.
History Middle Ages
Its name Mộc-châu in Kinh language is originated from ''Mueang Mol'' (Mường Mỗi, means "barbar ...
in
Sơn La Province
Sơn La is a province nestled in the Northwestern region of Vietnam.
In 2018, Sơn La ranked 31st among Vietnam's administrative units in terms of population, 40th in Gross Regional Domestic Product (GRDP), 49th in GRDP per capita, and 63rd in GR ...
. It is approximately from the Vietnam–
Laos
Laos, officially the Lao People's Democratic Republic (LPDR), is the only landlocked country in Southeast Asia. It is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and ...
border. The 260 MW associated power plant became fully operational in September 2017.
The Project
The Trung Sơn
hydropower
Hydropower (from Ancient Greek -, "water"), also known as water power or water energy, is the use of falling or fast-running water to Electricity generation, produce electricity or to power machines. This is achieved by energy transformation, ...
project is owned by Trung Sơn Hydropower Company Limited (TSHPCo), the entity established by
Vietnam Electricity
Vietnam Electricity (EVN; ) is the national and the sole public power company in Vietnam. It was established by the government of Vietnam as a state-owned company in 1994, and has operated officially as a one-member limited liability company s ...
(EVN) in Decision No. 106/QD-ENV dated March 17, 2011. TSHPCo is responsible for the management, construction and operation of the Trung Sơn hydropower project.
The project provides both power generation and flood control. The powerhouse is designed to contain four generating units with a total capacity of 260 MW and an annual output of 1,018.61 GWh,, a significant addition to the national grid. The flood control storage of will help prevent floods downstream.
The project cost a total of VND 7,775,146 million (equivalent to US $410.68 million).
[At the exchange rate of VND 18,932/ USD as published by the State Bank of Vietnam on December 31, 2010] This includes US $330 million from a World Bank loan, which was signed by the Socialist Republic of Vietnam and the World Bank on June 28, 2011. Additionally, the project was given slightly over US $80 million from the counterpart fund of (EVN).
The project has created social, environmental and community relation programs to mitigate anticipated and unanticipated issues with populations either directly or indirectly impacted, the Resettlement, Livelihoods and Ethnic Minorities Development Program (RLDP). These populations consist of approximately 10,600 people (2,327 households), of which 7,012 (1,516 households) will be directly impacted in the main project area, resulting in a total of 533 households having to be resettled. The RLDP includes a Resettlement Plan (RP), a Community Livelihoods Improvement Plan (CLIP) and an Ethnic Minorities Development Plan (EMDP).
In addition, management has prepared a Supplementary Environmental and Social Impact Assessment (SESIA) with Environmental Management Plan (EMP) for the project. This plan includes principles, approaches, procedures and methods to be used to control and minimize environmental impacts of all project-related construction and operation activities. Compared with fossil-fuel based energy plants of the same size, the dam produces far less greenhouse gas emissions (GHGs). TSHPCo maintains a website a
www.trungsonhp.vnwhere public information is routinely updated.
Main parameters
* Catchment basin area:
* Reservoir volume:
* Reservoir area when at full capacity:
* Full capacity water level:
* Minimum operating water level:
* Maximum flood control storage:
* Regular flood control storage:
* Installed electrical capacity : 260 MW
* Annual electrical output: 1,018.61 GWh
* Dam crest length:
* Dam width at the top:
* Dam height:
* A power plant containing four 65 MW
Francis turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency.
The pro ...
s (total installed capacity of 260 MW), each designed for a maximum water head of
* A 65-kilometer, 220-kV transmission line connecting to the national grid
* A 20.4-km access road
Components
The project is composed of four components:
* Dam and Ancillary Construction: (i) Dam and ancillary works; (ii) Access road and bridges; (ii) Temporary transmission line to supply power for construction; and (iv) Project management
* Permanent power transmission line: 220 kV double-circuit line to connect to the national grid in the Tan Lac district
* Social and environment impact mitigation concerns: (i) Resettlement; (ii) Livelihoods and ethnic minorities development; (iii) Public health support; and (iv) Environmental management
* Capacity development and scale-up: Support to bring hydropower projects up to international standards
Allocation of World Bank US$ 330 million loan
Key milestones
* Commencement of main civil works: November 2012
* River diversion: Quarter 4, 2013
* Impoundment: October 2016
* Operation of Unit No. 1: Quarter 4, 2016
* Operation of Unit No. 4: Quarter 2, 2017
References
TrungSon Project brief from Worldbank Việt Nam - Dự Án Nhà máy Thủy điện Trung Sơn
External links
Trung Sơn HPWorldbank
{{DEFAULTSORT:Trung Son Dam
Buildings and structures in Thanh Hóa province
Hydroelectric power companies
Hydroelectric power stations in Vietnam
Dams in Vietnam