Home: Electricity Consumption of Dishwashers

An energy efficient dishwasher has a two fold approach, not only is water saved but also electricity. On average, a grade A dishwasher will use 1.06 kWh per wash cycle.

The cycle used for testing is usually the 'economic' programme, even though this is suitable for most normal loads, it should not be used in every case.

Per year a grade A dishwasher (EU class) should consume 312 kWh of electricity per year. That is the projected figure for 2010. In 2008 the figure was 318 kWh per year.

Therefore, dishwashers have become 6 kWh of electricity more efficient over a two year period.

Below, electricity consumed (per wash) by grade,

Grade A - 1.06 kWh
Grade B - 1.25 kWh
Grade C - 1.45 kWh
Grade D - 1.65 kWh
Grade E - 1.85 kWh

One factor which is not highlighted by most manufacturers, and not noted by the energy labels, is the amount of electricity consumed when a dishwasher is on standby.