UV Curing worked example

UV LED Energy Cost with array wall-plug power of 2.25 kW: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop array wall-plug power to 2.25 kW, then walk the calculation through step by step. Cost out a UV LED cure system per shift and per part using array wall-plug power, runtime, utility rate, and units cured.

The inputs for this scenario

  • Array wall-plug power: 2.25 kW (the input this scenario stresses; the baseline uses 4.5)
  • Runtime per shift: 7.5 hr (held at the documented default)
  • Blended electricity rate: 0.14 $ / kWh (held at the documented default)
  • Parts cured per shift: 2,400 parts (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Energy used (kWh) = wall-plug power × runtime.
  • Shift energy cost works out to 2.36 $ / shift at these inputs, and this is the headline figure for the scenario.
  • Energy used per shift works out to 16.88 kWh at these inputs.
  • Energy cost per part works out to 0 $ / part at these inputs.
  • Hourly energy cost works out to 0.32 $ / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where array wall-plug power sits at 4.5 kW and the headline result is 4.73 $ / shift, this scenario comes in 50% below the baseline at 2.36 $ / shift.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to array wall-plug power, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It counts only the array's wall-plug draw — chillers, blowers, conveyors, and controls add real load that this figure excludes, so true line energy is higher.

Results at a glance

  • Shift energy cost: 2.36 $ / shift (headline result)
  • Energy used per shift: 16.88 kWh
  • Energy cost per part: 0 $ / part
  • Hourly energy cost: 0.32 $ / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live UV LED Energy Cost calculator, set array wall-plug power to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.