Hitachi Energy has signed a multi-year service agreement with Pattern Energy to support the high-voltage direct current (HVDC) technology for the SunZia Transmission Project. This project links New Mexico’s 3,515 MW SunZia Wind farm to Arizona’s power grid, enabling the transmission of renewable energy across Western states.

The HVDC link, using Hitachi Energy’s HVDC Light® voltage source converter technology, will efficiently transfer up to 3,000 MW of wind power over 885 kilometers (550 miles). The system is expected to become the largest HVDC Light installation in the United States and among the longest HVDC connections worldwide, with operation slated for 2025.

Under the agreement, Hitachi Energy will provide a broad range of lifecycle services, including scheduled maintenance, cyber services, and on-site engineering, through its EnCompass™ service portfolio. This long-term support aims to ensure optimal efficiency and reliability of the transmission link.

Paul Haberlein, VP of Operational Excellence at Pattern Energy, highlighted the project's significance in accelerating renewable energy adoption in the Western U.S., emphasizing the choice of Hitachi Energy for its expertise in HVDC technology.

With over 70 years of HVDC experience and a global installed base, Hitachi Energy continues to play a key role in advancing sustainable energy infrastructure worldwide.