Mining Vehicle & Underground Equipment worked example

Commissioning Load with connected electrical load during commissioning of 30 kW: a worked example

This scenario runs the commissioning load calculation on the strong side: connected electrical load during commissioning of 30 kW, with every other input held at its documented default. Use it when commissioning load in mining vehicle and underground equipment is being quoted and energy is a real chunk of the mining vehicle and underground equipment cost stack.

The inputs for this scenario

  • Connected electrical load during commissioning: 30 kW (raised for this scenario; the documented default is 12)
  • Commissioning run time: 8 hr (unchanged)
  • Blended electricity rate: 0.12 $ / kWh (unchanged)
  • Machines commissioned during the run: 1,000 units (unchanged)

Working through the calculation

  • Applying the documented formula (Total commissioning load energy cost = commissioning load connected load × commissioning load runtime × blended electricity rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 240 kWh for commissioning load energy used, the number this scenario is built around.
  • At this operating point the engine returns 28.8 $ for total commissioning load energy cost.
  • At this operating point the engine returns 0.03 $ / piece for energy cost per kwh.
  • At this operating point the engine returns 3.6 $ / hr for hourly commissioning load energy cost.

How this compares with the baseline

  • Against the tool's baseline example, where connected electrical load during commissioning sits at 12 kW and the headline result is 96 kWh, this scenario comes in 150% above the baseline at 240 kWh.
  • Use it when costing a commissioning procedure, sizing electrical supply for a test bay, or comparing the energy burden of a long burn-in against a shorter sequence. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Commissioning load energy used: 240 kWh (headline result)
  • Total commissioning load energy cost: 28.8 $
  • Energy cost per kWh: 0.03 $ / piece
  • Hourly commissioning load energy cost: 3.6 $ / hr

Run it with your numbers

  • Every input above is editable in the live Commissioning Load calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.