11
Calculation
The charges to be defined for the appliance are based on the operating costs of the
washing machine or tumble dryer connected.
The operating costs comprise the costs of the electricity and water consumed as well
as of any service agreement.
Example calculation for a washing machine with a 6 kg load
capacity
Basis: Main programme Coloureds 60 °C without a pre-wash
In the absence of any of the individual components of the calculation, we recommend
a charge of CHF 0.90 per hour for washing and CHF 1.20 per hour for drying.
The values indicated below are average values. These can (depending on
local electricity and water tariffs as well as service agreement costs) vary
widely.
Electricity costs
Electricity consumption
Electricity tariff
Electricity costs
1.4 kWh
×
CHF/kWh 0.25
=
CHF 0.35
Water costs (incl. waste water)
Water consumption
Water tariff
Water costs
70 litres = 0.07 m³
×
CHF/m³ 3.76
=
CHF 0.26
Cost of annual service agreement
Service agreement (WM + COS)
No. wash cycles
Cost of service agreement
CHF 232.00 + 83.00 = CHF 315.00
÷
600
=
CHF 0.53
Total operating costs per programme (duration 1hr16)
CHF 1.14
Operating costs
Per hour
Programme duration
CHF 1.14
×
60 mins.
÷
76 mins.
=
CHF/hr 0.90
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