State Grid Corp. of China's Brazilian unit has begun full-line construction on a
Northeast ultra-high-voltage (UHV) ±800 kV DC transmission project, the largest
transmission concession in Brazil. Independently financed, built and to be
operated by State Grid's Brazil holding, the project comprises a 1,468 km ±800
kV HVDC line, converter stations at both ends and supporting facilities with a
rated capacity of 5 GW; it is planned to be fully operational in 2029 under a
30-year concession. The link — State Grid's third overseas UHV project after two
earlier Brazilian schemes — aims to create a long-distance, high-capacity export
channel for northeast wind and solar, ease local curtailment, strengthen supply
security for the capital region and support national energy reallocation and
decarbonization efforts.
