Pattern Energy has selected Quanta Services and Hitachi Energy for construction and high-voltage direct current (HVDC) equipment supply for its $8bn, multi-gigawatt SunZia transmission and wind project, the largest renewables development in the western hemisphere.

Quanta will construct the proposed 550-mile (885-km), 525kV line that will deliver up to 3GW of clean power from a massive future 3.5GW wind farm in central New Mexico across desert terrain west to Arizona for grid connections to adjacent states including California.