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Data Center Power Chain Loss Calculator

Estimate end-to-end electrical losses across a sequence of user-entered conversion and distribution efficiencies.

Inputs

System inputs

Range: 0.1–1,000,000 kW

Enter real power delivered at the IT load in kW. Do not enter upstream facility input power here.

Range: 10–100 %

Enter UPS efficiency as a percent, such as 96 for 96%. Use the value at the load and operating mode being modeled.

Range: 10–100 %

Enter PDU efficiency as a percent, not a decimal. Keep the operating point consistent with the UPS and distribution values.

Range: 10–100 %

Enter the remaining distribution-stage efficiency as a percent. Do not also include losses already represented by the UPS or PDU inputs.

Result

Combined chain efficiency (decimal)
0.9314
Required upstream input power (kW)
107.37
Estimated chain loss (kW)
7.37
Chain loss relative to upstream input (%)
6.861

Formula

Calculation logic

Formula definitions and substituted values.

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