Cryogenic Storage & LNG Equipment worked example

Cryogenic Weld Inspection Energy Load with inspection equipment connected load of 6 kW: a worked example

This worked example runs the cryogenic weld inspection energy load numbers for a tougher week than the baseline: inspection equipment connected load of 6 kW instead of the typical 12 kW. Calculate the electricity cost tied to weld inspection equipment used for cryogenic vessels, piping, and LNG skids.

The inputs for this scenario

  • Inspection equipment connected load: 6 kW (the input this scenario stresses; the baseline uses 12)
  • Weld inspection runtime: 8 hr (held at the documented default)
  • Blended electricity rate: 0.12 $ / kWh (held at the documented default)
  • Welds or weld inches inspected: 1,000 welds or in (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Inspection energy used = inspection equipment connected load × weld inspection runtime.
  • Inspection energy used works out to 48 kWh at these inputs, and this is the headline figure for the scenario.
  • Weld inspection energy cost works out to 5.76 $ at these inputs.
  • Energy cost per weld inspected works out to 0.01 $ / piece at these inputs.
  • Hourly weld inspection energy cost works out to 0.72 $ / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where inspection equipment connected load sits at 12 kW and the headline result is 96 kWh, this scenario comes in 50% below the baseline at 48 kWh.
  • Use it when costing an NDE campaign, allocating utility overhead to a fabrication job, or comparing inspection methods by energy intensity. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Inspection energy used: 48 kWh (headline result)
  • Weld inspection energy cost: 5.76 $
  • Energy cost per weld inspected: 0.01 $ / piece
  • Hourly weld inspection energy cost: 0.72 $ / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Cryogenic Weld Inspection Energy Load calculator, set inspection equipment connected load to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.