Brazil Swept Up by New Energy Source

With its abundant dams and rivers that carry more fresh water than any other country, Brazil — big and bountiful — essentially runs on hydropower. But it turns out that the country can also count on a good strong breeze.

Wind is emerging as a prize for energy planners here who see the howling gusts that arrive from the east as a way to offset the fresh limits imposed on hydropower.

A string of wind-turbine parks is being erected in Brazil’s windiest stretches, in what planners see as the beginning of an extraordinary transformation. No one expects that wind will outpace dams as the main source of electricity here. But the goals remain audacious for a country that projects an annual increase in electricity consumption of up to 5 percent in coming years.