SunZia DC Transmission Project

Client

Pattern Logo

Start Date

October 2022

End Date

Ongoing

Scope

EPC of 890km of +/-525kV High Voltage Direct Current (HVDC) transmission line between Central New Mexico and South-Central Arizona.

Highlights

  • SunZia Wind and Transmission comprise the largest renewable energy infrastructure project in U.S. History.
  • 2,169 total structures.
  • 19 Unique Tubular monopole designs along with 8 lattice steel structures.

Challenges

  • Unique environmental conditions which presented logistical and safety challenges
  • Dynamic and complex project with many stakeholders.
  • Coordinating between many working groups in engineering, procurement and construction due to project scope/size.

Services Utilized

  • Engineering Project Management
  • Construction Support
  • Field Engineering
  • Survey and Survey Management
  • Regen building design

Location

Central New Mexico to South-Central Arizona