The Tri An hydropower reservoir has a total storage capacity of 2.76 billion cubic metres, with an effective capacity of 2.55 billion cubic meters. (Photo: Huy Hung/VNA)

A panoramic view of the eight spillway gates of Tri An Hydropower seen from downstream. (Photo: Huy Hung/VNA)

The spillway area of the Tri An hydropower reservoir viewed from upstream. (Photo: Huy Hung/VNA)

The Tri An hydropower reservoir covers an area of 324 square kilometers. (Photo: Huy Hung/VNA)

The Tri An Hydropower Plant is located on Dong Nai river, in Vinh Cuu district, Dong Nai province. (Photo: Huy Hung/VNA)

The turbine room No 2 at the Tri An Hydropower Plant. (Photo: Huy Hung/VNA)

Workers inspect the fire prevention and firefighting system in the plant compound. (Photo: Huy Hung/VNA)

The Tri An Hydropower plant has four turbines, with a total designed capacity of 400 MW. (Photo: Huy Hung/VNA)

The central control room of the Tri An Hydropower plant. (Photo: Huy Hung/VNA