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Data Center Design and Operations

Colocation

Colocation is a model where customers deploy IT equipment in a third-party data center rather than owning the entire facility. The provider supplies space, power, cooling, security, connectivity, and operating services under commercial agreements.

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Powered land

Powered land is land whose value is driven by credible access to large-scale electric service. The phrase should be used carefully because entitlement, utility commitments, study status, cost allocation, timing, and physical interconnection can make "powered" claims vary widely.

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RDHx

Rear Door Heat Exchanger is a heat exchanger mounted on the exhaust side of a rack to remove heat before it enters the room. It can help densify air-cooled or hybrid deployments without fully converting to direct liquid cooling.

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Lithium-ion battery

Lithium-ion battery is a high-energy-density battery chemistry commonly used in modern UPS and BESS systems. It can reduce footprint and maintenance compared with older chemistries, but it requires careful thermal, fire, and controls design.

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