Industrial Cleaning, Washing & Parts Cleanliness worked example
Washer Energy Cost at 72% energy cost scope included: a worked example
This worked example runs the washer energy cost numbers for a tougher week than the baseline: 72% energy cost scope included instead of the typical 100%. Estimate washer energy cost from machine energy hours, energy cost rate, scope, and fixed heat-up or demand adders.
The inputs for this scenario
- Washer energy operating hours: 160 machine hr (held at the documented default)
- Energy cost per machine hour: 18 $ / machine hr (held at the documented default)
- Energy cost scope included: 72 % (the input this scenario stresses; the baseline uses 100)
- Fixed heat-up and demand cost: 380 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Variable washer energy cost = washer energy operating hours × energy cost per machine hour × energy cost scope included.
- Total washer energy cost works out to 2,454 $ at these inputs, and this is the headline figure for the scenario.
- Energy cost per machine hour works out to 15.34 $ / machine hr at these inputs.
- Variable washer energy cost works out to 2,074 $ at these inputs.
- Fixed heat-up and demand cost works out to 380 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where energy cost scope included sits at 100% and the headline result is 3,260 $, this scenario comes in 24.74% below the baseline at 2,454 $.
- Use it when costing aqueous cleaning energy, evaluating tank covers or insulation, or comparing keeping a washer hot against cycling it off between shifts. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.
Results at a glance
- Total washer energy cost: 2,454 $ (headline result)
- Energy cost per machine hour: 15.34 $ / machine hr
- Variable washer energy cost: 2,074 $
- Fixed heat-up and demand cost: 380 $
Run it with your numbers
- To rerun this with your own numbers, open the live Washer Energy Cost calculator, set energy cost scope included to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.