Rail Signaling & Wayside Equipment worked example

Fail-Safe Validation Workload with validation rig connected load of 30 kW: a worked example

Push validation rig connected load up to 30 kW and the picture changes. This example computes every intermediate figure at that operating point. Use it when fail-safe validation workload in rail signaling and wayside equipment is up for an upgrade and you want a defensible savings story.

The inputs for this scenario

  • Validation rig connected load: 30 kW (raised for this scenario; the documented default is 12)
  • Validation runtime: 8 hr (unchanged)
  • Blended electricity rate: 0.12 $ / kWh (unchanged)
  • Signaling units validated during runtime: 1,000 units (unchanged)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where validation rig connected load sits at 12 kW and the headline result is 96 kWh, this scenario comes in 150% above the baseline at 240 kWh.
  • It computes total energy used and its cost for a fail-safe validation run from connected load, runtime, and electricity rate, then spreads the cost across the units validated. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Fail-safe validation workload energy used: 240 kWh (headline result)
  • Total fail-safe validation workload energy cost: 28.8 $
  • Energy cost per kWh: 0.03 $ / piece
  • Hourly fail-safe validation workload energy cost: 3.6 $ / hr

Run it with your numbers

  • Every input above is editable in the live Fail-Safe Validation Workload calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.