Space Payload & Avionics Manufacturing worked example

Cleanroom Assembly Load with cleanroom assembly connected load of 6 kW: a worked example

This worked example runs the cleanroom assembly load numbers for a tougher week than the baseline: cleanroom assembly connected load of 6 kW instead of the typical 12 kW. Estimate cleanroom assembly load for space payload and avionics manufacturing using production-ready inputs so teams can budget energy cost, compare equipment settings, or include electricity in the quote.

The inputs for this scenario

  • Cleanroom Assembly Connected Load: 6 kW (the input this scenario stresses; the baseline uses 12)
  • Cleanroom Assembly Runtime: 8 hr (held at the documented default)
  • Blended Electricity Rate: 0.12 $ / kWh (held at the documented default)
  • Assemblies Built in Runtime: 1,000 units (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total cleanroom assembly load energy cost = cleanroom assembly load connected load × cleanroom assembly load runtime × blended electricity rate.
  • Cleanroom assembly load energy used works out to 48 kWh at these inputs, and this is the headline figure for the scenario.
  • Total cleanroom assembly load energy cost works out to 5.76 $ at these inputs.
  • Energy cost per kWh works out to 0.01 $ / piece at these inputs.
  • Hourly cleanroom assembly load energy cost works out to 0.72 $ / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where cleanroom assembly 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 cleanroom overhead into a build, sizing power and HVAC for a new cell, or evaluating whether a lightly loaded room is worth keeping energized. 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

  • Cleanroom assembly load energy used: 48 kWh (headline result)
  • Total cleanroom assembly load energy cost: 5.76 $
  • Energy cost per kWh: 0.01 $ / piece
  • Hourly cleanroom assembly load energy cost: 0.72 $ / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Cleanroom Assembly Load calculator, set cleanroom assembly connected load to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.