Topic guide
Browse technical references on uninterruptible power supplies, batteries and redundant power arrangements. Explore capacity, efficiency, runtime and maintenance considerations alongside each publication’s assumptions and scope.
169–175 / 175
Vertiv 2025
Seed an AI-hall wizard template with: compute rack 73 kW, support rack 14 kW, liquid fraction 0.78, power 4N/3, cooling N+1, mechanical UPS 2N.
Vertiv 2024
Provide a "2N AI hall" preset to compare with the 4N/3 preset: 2N makes installed UPS 200% of load against 133% for 4N/3; show the capex and efficiency deltas.
Vertiv 2025
Make the capacity block a first-class object: block = UPS group + PDUs + CDUs + chillers sized for N pods, so no power is stranded.
Vertiv 2025
Implement mechanical UPS sizing explicitly: mechUpsKw = sum of CDU pump kW + CRAH fan kW for every unit that must ride through; default about 20 kW per 1.35 MW CDU (roughly 1.5% of liquid load) and about 17 kW per CRAH.
Vertiv 2025
In the campus planner define the 2,496 kW pod as a repeatable block; when the user picks N blocks, multiply UPS, CDU and chiller counts by the block count.
Vertiv 2024
In the layout engine add 200 mm to rack depth for liquid-cooled AI racks; manifolds and hoses do not fit standard depth.
Open Compute Project Foundation 2026
Fix the ESS architecture (DC or AC coupled, distributed or centralised, backup-only or grid-interactive), write the applicable NFPA 70, NFPA 855 and IEC 62933 parts into the design basis, and consult the authority having jurisdiction (AHJ) early.
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