Port, Crane & Terminal Equipment worked example

Hoist Motor Load with hoist motor connected load of 30 kW: a worked example

This scenario runs the hoist motor load calculation on the strong side: hoist motor connected load of 30 kW, with every other input held at its documented default. Use it when hoist motor load in port, crane and terminal equipment is up for an upgrade and you want a defensible savings story.

The inputs for this scenario

  • Hoist motor connected load: 30 kW (raised for this scenario; the documented default is 12)
  • Hoist duty runtime per shift: 8 hr (unchanged)
  • Blended electricity rate: 0.12 $ / kWh (unchanged)
  • Containers or lifts handled during runtime: 1,000 units (unchanged)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where hoist motor connected load 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 auditing crane drive energy, comparing electric vs diesel handling, or building a per-container energy cost line for terminal cost models. 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

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

Run it with your numbers

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

Last reviewed 2026-05-12.