Smart Home & Consumer IoT Hardware worked example

Final Functional Test Load with fft station connected load of 6 kW: a worked example in smart home & consumer iot hardware

Here is what the math looks like when conditions slip. We hold every other input steady and drop fft station connected load to 6 kW, then walk the calculation through step by step. Estimate final functional test load for smart home and consumer IoT hardware using production-ready inputs so teams can budget energy cost, compare equipment settings, or include electricity in the quote.

The inputs for this scenario

  • FFT station connected load: 6 kW (the input this scenario stresses; the baseline uses 12)
  • FFT station runtime this shift: 8 hr (held at the documented default)
  • Blended electricity rate: 0.12 $ / kWh (held at the documented default)
  • Devices tested during runtime: 1,000 units (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total final functional test load energy cost = final functional test load connected load × final functional test load runtime × blended electricity rate.
  • Final functional test load energy used works out to 48 kWh at these inputs, and this is the headline figure for the scenario.
  • Total final functional test 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 final functional test 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 fft station connected load sits at 12 kW and the headline result is 96 kWh, this scenario comes in 50% below the baseline at 48 kWh.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to fft station connected load, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses one blended kW figure and a flat rate — real FFT stations cycle between idle, soak, and peak RF test states, so metered draw will vary within the run.

Results at a glance

  • Final functional test load energy used: 48 kWh (headline result)
  • Total final functional test load energy cost: 5.76 $
  • Energy cost per kWh: 0.01 $ / piece
  • Hourly final functional test load energy cost: 0.72 $ / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Final Functional Test Load calculator, set fft station connected load to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.