Nam Chien 3 Hydropower Plant is the third hydropower plant on Chien Stream of Chieng San commune, Muong La district, Son La province. It is located right next to Nam Chien 2 discharge tunnel. Therefore, Nam Chien 3 takes advantage of the water flow through Nam Chien 2 and the water level diferences from downstream of Nam Chien 2 to Pa Chien hydropower plant. Additionally, Nam Chien 3 Hydropower Plant also has a Chiron dam to tranfer water into Nam Chien 2 discharge tunnel in order to take full advantage of Nam Chien 2's downstream.
