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ENGINEERING COMPUTATIONAL TOOL #518
HPE Cray EX254n 4x H100 Supercomputing Blade Data Center PUE & Annual Power Cost (California High Energy Commercial)
Calculate continuous megawatt power consumption, monthly and annual operating electricity bills, and required cooling tonnage for HPE Cray EX254n 4x H100 Supercomputing Blade at California High Energy Commercial ($0.22/kWh).
Hardware & Deployment Parameters
Nodes
Watts
$/kWh
Initializing Scientific Computational Engine...
Engineering Implementation Guidelines
1
Select cluster node count and confirm server rated power draw (4800W).
2
Choose data center cooling architecture (Liquid Cooling vs Air Cooling PUE).
3
Set regional commercial power tariff rate ($0.22/kWh) to calculate 24/7 operating power expenditure.
Frequently Asked Engineering Questions (FAQ)
How much electricity does an 8-node cluster of HPE Cray EX254n 4x H100 Supercomputing Blade consume annually?
An 8-node deployment draws 38.4 kW of IT power. At a PUE of 1.12, total facility load is 43.0 kW, consuming hundreds of megawatt-hours yearly.
What is the difference between direct-to-chip liquid cooling and air cooling PUE?
Direct-to-chip liquid cooling reduces cooling fan and chiller power, dropping PUE from ~1.35 to ~1.15 and cutting facility power consumption by up to 15-20%.
Why is PUE critical when calculating data center ROI?
Over a 3-5 year server lifecycle, electricity bills frequently exceed the initial hardware capital cost. Every 0.1 reduction in PUE saves tens of thousands of dollars per megawatt annually.