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Early this decade, a drought in Brazil that cut water to the country’s hydroelectric dams prompted severe energy shortages. The crisis, which ravaged the country’s economy and led to electricity rationing, underscored Brazil’s pressing need to diversify away from water power.

One result of that introspection will climax on Dec. 14, when the Brazilian government conducts its first wind-only energy auction. The bidding is expected to lead to the construction of two gigawatts of wind production with an investment of about $6 billion over the next two years.