The viable maximum wind energy penetration in the Brazilian Northeast (NE) is 65%.
Wind energy penetration is expected to reach 55% in Brazil's NE subsystem by 2020.
Wind power could replace all fossil fuel generators in the NE subsystem by 2020.
This could reduce the LCOE by 46% and CO2eq emissions by 34 million tonnes per year.
NE wind power has strong seasonal complementarity with Brazil's hydroelectricity.