Row-Level Power Density

Row-level power density is the total electrical load of a row of racks divided by the row footprint, used to plan cooling and power distribution beyond a single rack average. Designers use it because AI halls mix racks of very different loads, so a per-rack average hides local hot spots. Air-cooled halls have traditionally been planned at roughly 5 to 10 kW per rack, while liquid-cooled AI racks are specified well above 40 kW, and the row is where busway, containment and coolant distribution are sized. Operators quote row figures alongside the hall capacity so tenants can see whether dense deployments can be grouped on one row or must be spread across several to stay within the supply limits.