Project Overview
Completed in 2025, the West Camp Wind Project is a 504 megawatt (MW) renewable energy facility located near Holbrook, Arizona. The project includes 112 Vestas V150 turbines, extensive civil infrastructure, and a self-performed power collection system. Despite challenging mountain terrain, significant rock excavation, and complex transmission integration requirements, the team delivered innovative solutions that improved sustainability, reduced fuel consumption during project construction utilizing a pilot BESS – a battery energy storage system which eliminated 5,000 gallons of diesel fuel use per month and supported reliable clean energy generation for approximately 151,000 homes annually.
Key Takeaways:
- Delivered a 504 MW wind energy project utilizing 112 Vestas V150 turbines.
- Constructed over 64 miles of roads and completed more than 602,000 cubic yards of grading.
- Installed 90 drainage crossings across a rugged, mountainous project site.
- Successfully interconnected with Arizona Public Service (APS).
- Self-performed major portions of power infrastructure, including transmission, collection systems, and collector substation construction.
- Overcame significant geological challenges associated with extensive rock excavation and trenching.
- Mitigated supply chain and equipment delays while maintaining schedule objectives.
- Completion Date
December 2025
- Delivery Method
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Engineer, Procure and Construct
- Additional Project Facts
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Customer: Confidential
Wind Capacity: 504 MW
Turbines: 112 Vestas V150 Wind Turbines
Project Area: Approximately 24 Square Miles
Homes Powered: Approximately 151,000 Homes Annually
Utility Interconnection: Arizona Public Service (APS)
Roads Constructed: 338,929 LF (64.2 miles)
Grading: 602,395 CY
Drainage Crossings: 90
Transmission Line: 29 Miles of 345kV Bundled 954 ACSR Conductor
Collector Substation: 34.5kV/345kV, 500MW
Delivering Renewable Energy in Remote Arizona
Located in a remote mountainous environment, the project required significant coordination across civil, wind, and power construction scopes while managing challenging site conditions, substantial rock excavation, and complex utility interconnection requirements. The scope of work also included building an O&M building, MET towers and Aircraft Detection Lighting System (ADLS).
Civil Infrastructure Built for Complex Terrain
Civil construction activities established the foundation necessary for turbine installation and long-term operations.
Civil Scope Highlights
- 338,929 linear feet (64.2 miles) of roadway construction
- 602,395 cubic yards of grading
- 90 drainage crossings
- Extensive drilling, blasting, and crushing operations
- Three water wells drilled to support project construction activities
The project team encountered significant rock formations throughout foundation excavation and grading operations. Blasting and crushing activities were required at turbine foundations and in multiple grading areas to prepare the site for construction.
To support construction operations in the remote location, the team also drilled three wells in an effort to provide a reliable water source for project activities.
Self-Performed Power Infrastructure
The West Camp team self-performed significant portions of the project's power infrastructure, increasing control over quality, schedule, and execution.
Transmission and Collection System Scope
- 29 miles of 345kV bundled 954 ACSR conductor
- Braced post insulator monopoles
- 34.5kV/345kV collector substation
- Approximately 6 miles of self-performed 345kV transmission line
- Approximately 35 miles of self-performed 34.5kV overhead collection system
- Approximately 354,000 trench feet of self-performed underground collection installation
- Self-performed 500MW collector substation with four main power transformers (MPTs)
The completed power infrastructure successfully interconnected the facility with Arizona Public Service (APS), enabling energy delivery to the regional grid.
