Around 80-90% of the energy used by a washing machine is used to heat water. A washing machine will use 400 to 1300 watts, with modern Energy Star rated models using about 500 watts.
See the energy consumption of a washing machine using 2000 Watts for 1 hour a day @ £0.19 per kWh.
Cost Per Hour: £0.3800
Cost Per Day: £0.3800
Cost Per Month: £11.56
Cost Per Year: £138.72
kWh Per Day: 2.00
Tip:It is highly recommended to wash clothes on the lowest temperature possible.