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Data Center Design and Operations

Mechanical load

Mechanical load is the power used by cooling and air or liquid-handling systems. It is a major contributor to the gap between IT load and total facility load, especially in hot climates or air-cooled high-density facilities.

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Resilience

Resilience is the ability of a facility or system to prepare for, withstand, recover from, and adapt to disruptions. For powered land, resilience spans grid, fuel, water, network, climate, supply chain, operations, and community infrastructure.

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Approach temperature

Approach temperature is the difference between leaving fluid temperature and the relevant ambient or cooling medium temperature. It helps describe cooling tower, heat exchanger, and chiller performance but needs equipment-specific context.

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Gross lease

Gross lease is a lease structure where rent includes most operating expenses, subject to negotiated details. It can make budgeting simpler for tenants but shifts expense risk to the landlord unless there are caps, stops, or exclusions.

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