Power Fundamentals
Kilovolt-ampere is apparent power, which combines real and reactive power. Equipment such as transformers and UPS systems is often rated in kVA, so users need power factor to translate a kVA rating into usable kW.
A feeder is a circuit that delivers power from a substation or distribution source toward loads. For a data center site, feeder voltage, route, capacity, contingency capability, and upgrade requirements help determine whether service is practical.
Read definition →Fault tolerant means the facility can continue operating through an individual equipment failure or distribution-path interruption. It is associated with Tier IV, but real fault tolerance depends on detailed topology, controls, and isolation.
Read definition →Megawatt-hour equals one MW used for one hour. MWh matters for energy cost, emissions, battery duration, and renewable matching, while MW matters for peak capacity and grid impact.
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