Clasen & Associates, LLC (C&A) provided construction and commissioning safety services for Pattern Energy on largest clean energy infrastructure project in United States history.  The project will provide $20.5 Billion USD of economic benefit, generate 3,500 MW of ±525 kV High-Voltage Direct Current (HVDC) power, and transmit sustainable energy 550 miles from New Mexico to Arizona and supply 1 Million American homes with clean power annually.  In 2025, C&A helped Pattern by creating owners project requirements (OPR) and a basis of design (BOD) for future projects, while performing construction and electrical services during energization and commissioning.