The four-turbine hydropower plant has a capacity of 190 megawatts and will add an annual 752 million kWh to the national electricity output.
The plant was built by the Vietnam Urban and Industrial Zone Development Investment Corporation (IDICO) at a total cost of VND4.547 trillion (US$218.2 million).
The new power plant is expected to promote socio-economic development in the mountainous districts of Quang Nam province while the dam will be used to regulate water flow to the lower reaches of the Vu Gia - Thu Bon River.
Dak Mi 4 is part of the hydropower complex on the Dak Mi River with a total capacity of 264 megawatts and an annual output of 1,050 million kWh.
On the same day, the Nam Cat hydropower plant was inaugurated in the northern province of Bac Kan. The dual-turbine plant has a capacity of 3.2 megawatts and will provide an annual 13 million kWh for the national electricity grid.