Smart Home & Consumer IoT Hardware worked example

Final Functional Test Load with fft station connected load of 30 kW: a worked example in smart home & consumer iot hardware

What does the result look like when fft station connected load reaches 30 kW? The full calculation is worked below with real intermediate numbers. Use it when final functional test load in smart home and consumer iot hardware is being quoted and energy is a real chunk of the smart home and consumer iot hardware cost stack.

The inputs for this scenario

  • FFT station connected load: 30 kW (raised for this scenario; the documented default is 12)
  • FFT station runtime this shift: 8 hr (unchanged)
  • Blended electricity rate: 0.12 $ / kWh (unchanged)
  • Devices tested during runtime: 1,000 units (unchanged)

Working through the calculation

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

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 150% above the baseline at 240 kWh.
  • A figure at this level is achievable when fft station connected load is genuinely sustained, not just peaked for a shift. 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: 240 kWh (headline result)
  • Total final functional test load energy cost: 28.8 $
  • Energy cost per kWh: 0.03 $ / piece
  • Hourly final functional test load energy cost: 3.6 $ / hr

Run it with your numbers

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

Last reviewed 2026-05-12.