Trung Son Hydropower (TSHP) is a medium-scale hydropower project, constructed on the main stream of the Ma River in Northwest of Vietnam. The project locates in Trung Son commune, Quan Hoa district, Thanh Hoa province. The power plant contains 4 turbines with a total installed capacity of 260 MW and annual output of 1,018.61 million kWh which will be a significant addition to the national grid.

This is a multi-purpose project providing benefits of both power generation and flood control while contributing to Vietnam’s Climate Change Program through avoidance of CO2 emission.

ThuydienTrungSon-5519TSHP was thoroughly designed with a project preparation process that followed international good practices in investigation, technical design, analysis of alternatives, monitoring, studies and calculations to meet stringent environmental, social and dam safety requirements. Therefore, the project minimizes social and environmental impacts from all project-related construction and operation activities. Especially, the life of project affected people will be considerably improved after completion of the project. TSHP is a typical example of how a hydropower project can support the country’s development in a social and environmental sustainable and economic manner.

The project is financed by the World Bank and implemented by the Project Owner – Trung Son Hydropower Company Limited (TSHPCo), a subsidiary company under Power Generation Corporation 2 (GENCO2) of Vietnam Electricity (EVN).


Technical parameters of project

  • Catchment area (Flv): 14,660 km2
  • Reservoir capacity: 348,5 triệu m3
  • Reservoir surface area at full supply level: 13,13 km2
  • Full supply level: 160m
  • Minimum operating level: 150m
  • Flood control storage: 150 million m3
  • Regular flood control storage: 112 million m3
  • Installed capacity: 260MW
  • Mean annual electricity: 1.018,61 million kWh

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Project schedule

  • Commencement of main civil works: November 2012
  • River diversion: Quarter 4, 2013
  • Impoundment: October 2016
  • Power Generation by unit No. 1: Quarter 4, 2016
  • Power Generation by unit No. 4: Quarter 2, 2017