EV Charging Infrastructure Manufacturing worked example

Burn-In Test Load with average burn-in electrical load of 120 kW: a worked example

Suppose average burn-in electrical load falls to 120 kW. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate burn-in test energy cost for EV chargers or power modules from load, duration, energy rate, and units tested.

The inputs for this scenario

  • Average burn-in electrical load: 120 kW (the input this scenario stresses; the baseline uses 240)
  • Burn-in test duration: 8 hr (held at the documented default)
  • Blended electricity rate: 0.13 $ / kWh (held at the documented default)
  • Chargers or power modules tested: 12 units (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Burn-in energy cost = average burn-in load × burn-in duration × blended electricity rate.
  • Burn-in test energy cost works out to 125 $ at these inputs, and this is the headline figure for the scenario.
  • Burn-in test energy used works out to 960 kWh at these inputs.
  • Burn-in energy cost per unit works out to 10.4 $ / unit at these inputs.
  • Hourly burn-in energy cost works out to 15.6 $ / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where average burn-in electrical load sits at 240 kW and the headline result is 250 $, this scenario comes in 50% below the baseline at 125 $.
  • It computes the total electricity cost and kWh of a burn-in run at a given average load, duration, and rate, then divides by the units tested for a per-unit cost. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Burn-in test energy cost: 125 $ (headline result)
  • Burn-in test energy used: 960 kWh
  • Burn-in energy cost per unit: 10.4 $ / unit
  • Hourly burn-in energy cost: 15.6 $ / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Burn-In Test Load calculator, set average burn-in electrical load to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.