Data Centers
Walker Electric: Advanced Electrical Contracting for Data Centers and High-Performance Computing
Walker Electric is a trusted partner for data center electrical contracting, delivering mission-critical power solutions for high-performance computing, secure data centers, and supercomputing facilities. With expertise in large-scale power distribution, UPS backup systems, custom switchgear, and energy plant upgrades, Walker Electric supports the demanding requirements of data centers at the forefront of technology. Their work includes complex facility upgrades, engineered power systems, and secure installations for government, research, and enterprise clients—ensuring maximum reliability, uptime, and compliance for today’s most advanced computing environments.
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01.
OLCF-4 Summit
Facility upgrades for a new supercomputer for the Oak Ridge Leadership Computing Facility (OLCF). Included a new 3-megawatt central energy plant with main-tie-main switchboard capable of supporting a 20-megawatt, medium temperature system. 20-megawatts of power was provided for new computer cabinets with UPS Backup provided to critical cabs.
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02.
3N Data Center
Installation of 2000 kilowatts of new power infrastructure and 300 kilowatts of UPS backup at ORNL to support a secure computing facility. Work was performed in an active, secure building and required compliance with security regulations for equipment installation.
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03.
NOAA C6
Installation of a new 5000-amps switchboard and associated branch circuits to support a new computer system for NOAA at ORNL. Due to facility constraints, switchboards and power distribution equipment were required to be in closer proximity. This required an engineered solution using custom fused switch panelboards to protect computer cabinets. In addition, in-line inductors were utilized to limit harmonics from VFD’s within in-row cooling equipment.
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04.
OLCF-5 Frontier
Facility upgrades for a new supercomputer for the Oak Ridge Leadership Computing Facility (OLCF). Included a new 8-megawatt central plant capable of supporting up to a 70-megawatt machine with medium temperature water. Approximately 24-megawatts of existing switchboard capacity were reused with a further 28 megawatts of new capacity added to support the new computer cabinets. As of June 2024, Frontier is the fastest machine in the world, and one of the only two Exascale machines.
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