When swollen by the rainy season, the river will cascade through the turbines, turning out up to 11, 200 megawatts adding 10% to Brazil's existing generating capacity.
The primary school counts 430 students and 17 teachers, grapples with classic problems of rural schools in many parts of the world from overcrowding and lack of clean water to difficulty in growing much-needed shade trees and river overflows in the rainy season.