Compare a combined laundry and water routine
A household tries a shorter electric wash program that also draws less water. Compare sample average electrical draw of 500 W for one hour with 400 W for 45 minutes across ten loads.
Open CalculatorInputs and calculation
| Tool input | Value |
|---|---|
| Currency | USD |
| Power unit | W |
| Power | 500 |
| Hours per day | 1 |
| Days or equivalent sessions | 10 |
| Duty cycle (%) | 100 |
| Energy price (USD per input kWh) | 0.25 |
| Alternative power (W) | 400 |
| Alternative hours per day | 0.75 |
| Alternative duty cycle (%) | 100 |
Baseline: 500 ÷ 1,000 × 1 × 10 × 100% = 5 kWh. Alternative: 400 ÷ 1,000 × 0.75 × 10 × 100% = 3 kWh. Multiply both by 0.25; the baseline minus the alternative is USD 0.50.
Modeled difference · USD 0.50
What the comparison shows
Enter ten days for ten one-cycle sessions. At 60 versus 45 L per load, water drops from 600 to 450 L. At USD 3/m³, the water difference is 0.45, giving a combined illustrative difference of 0.95.
Assumptions and limits
The Simulator handles electricity only. Water values are illustrative cycle measurements and belong in the Household Water Usage Calculator. Check that the programs meet the same laundry needs.