Industrial Fans, Blowers & Air Movement Equipment worked example

Static Pressure Power with connected fan motor load of 46 kW: a worked example

This scenario runs the static pressure power calculation on the strong side: connected fan motor load of 46 kW, with every other input held at its documented default. Use it when evaluating the cost impact of static pressure, duct loss, filter loading, damper position, or motor selection.

The inputs for this scenario

  • Connected fan motor load: 46 kW (raised for this scenario; the documented default is 18.5)
  • Fan operating runtime: 8 hr (unchanged)
  • Blended electricity price: 0.13 $ / kWh (unchanged)
  • Fans or test units covered: 6 fans (unchanged)

Working through the calculation

  • Applying the documented formula (Fan energy cost = connected fan motor load × fan operating runtime × blended electricity price) to the inputs above produces each figure below.
  • At this operating point the engine returns 47.84 $ for fan energy cost, the number this scenario is built around.
  • At this operating point the engine returns 368 kWh for energy used.
  • At this operating point the engine returns 7.97 $ / piece for cost per piece.
  • At this operating point the engine returns 5.98 $ / hr for hourly cost.

How this compares with the baseline

  • Against the tool's baseline example, where connected fan motor load sits at 18.5 kW and the headline result is 19.24 $, this scenario comes in 149% above the baseline at 47.84 $.
  • Use it to estimate operating cost for a fan or fan bank, build an energy-savings business case, or quantify the cost penalty of rising static pressure. 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

  • Fan energy cost: 47.84 $ (headline result)
  • Energy used: 368 kWh
  • Cost per piece: 7.97 $ / piece
  • Hourly cost: 5.98 $ / hr

Run it with your numbers

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

Last reviewed 2026-05-12.