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Sisters of Mercy Data Center

Location: Washington, MO
Completed: 2009
Client: Sisters of Mercy Health System
Size: 42,500 SF

Guarantee Electrical and a St. Louis-based construction team completed a 42,500-square-foot Tier III data center in Washington, Mo. for the Sisters of Mercy Health System (Mercy).  The facility presents best-in-class space supported by 2N infrastructure with true redundancy for all critical infrastructure, such as electrical and data. The amount of power being brought to the building is sufficient to light a town of 14,000 people.

The Mercy Health System invested in the $60 million data center to advance its goal for electronic filing of all patient medical records – diagnostics, therapies, outcomes. Guarantee’s electrical design was scalable, decreasing the need for upfront investment. Initially, the center has a capacity of four 1.0MW 416/240V N+1 modular uninterruptible power supply (UPS) systems, each expandable to 1.6MW in 200KW segments as the load grows. In addition, each UPS is linked to a 416/240V unit sub that serves the data center by way of remote power panels located in data center racking. This eliminates additional transformation typically required in data centers served by conventional 480V to 120/208V power distribution units.

Guarantee focused on maximizing energy efficiency without compromising functionality. A web-based building management system controls interior and exterior lighting designed to ASHRAE 90.1 2004 standards. All mechanical motors are high efficiency with variable speed drives. 

The center carries a finish specification of 368 watts per square foot of raised floor area. It has a 35KV customer substation with dual 7 MVA 12.47KV secondary transformers that are expandable to 14 MVA, with transmission and delivery rates at transmission-grade level to enable the support of next-generation, high-density systems. 

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