Prineville, OR
1 Building(s)   150,000 sq ft.   New Construction   LEED Gold

Since its inception in 2004, Facebook has become the recognized leader in social networking. In just over ten years, Facebook has enabled over 1.3 billion active users to connect with the world through its website. In order to support this large volume of users, Facebook has constructed several data center facilities throughout the United States. Each data center is considered a “mission critical” facility, requiring redundant building systems, complex control algorithms for building cooling, and dedicated project teams for project delivery.


In late 2012, Facebook selected Prineville, Oregon as its next location for a mission critical data center facility. Facebook selected Syserco to implement the Energy Management & Control System (EMCS) solution for the Prineville data center facility. Syserco was selected by the Facebook project team because of its strong reputation for technical expertise with Alerton controls, dedicated project team staffing, customer service and proven history of delivering remote projects.


Facebook’s data center in Prineville (PRN-4) was engineered to meet stringent uptime requirements as well as aggressive Power Usage Effectiveness (PUE) energy efficiency measurement targets. In order to ensure uptime and energy efficiency, Syserco’s control solution included precise control of the facility’s complex Computer Room Air Handling (CRAH) units as well as integration with the building’s critical electrical infrastructure monitoring system (EPMS). The CRAH units were provided dedicated hard-wired control and the EPMS system was integrated into the Alerton system using MODBUS TCP.


In order to ensure that both systems operated according to user requirements and specification, Syserco supported the project team during Factory Acceptance Testing and Integrated System Testing. Once the systems were appropriately tested and commissioned, Syserco incorporated the PRN-4 data center facility into Facebook’s Global Alerton EMCS system.



    • 100% OSA Fan Wall System to reduce Energy usage

    • Evaporative Cooling

  • Server “waste heat” is used to heat the office space in colder months

    • (15) Computer Room Air Handling Units (CRAH)

    • (2) Office VAV Air Handling Units

    • Hot Aisle/Cold Aisle Monitoring (Temperature, Humidity, Pressure)

    • Water Conductivity Monitoring

    • Critical Electrical Infrastructure (EPMS) Monitoring, including:
    • UPS via Modbus RTU 
    • Generator via Modbus RTU
    • Distribution Switchboard via Modbus RTU
    • Power Distribution Units via Modbus TCP

    Integration to global EPMS (Electrical Power Monitoring System) via Modbus TCP

    • Power Usage Effective Monitoring and Energy Dashboard 

    • Factory Acceptance Testing for CRAH units and EPMS systems




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