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Appliance energy cost
What an appliance costs to run per day, month and year, including standby draw.
133.81
Cost per year
2.44 kWh
Energy per day
0.37
Cost per day
11.15
Cost per month
892 kWh
Energy per year
How it's calculated
- Energy = (running W × hours + standby W × remaining hours) ÷ 1000.
- A rating plate shows the maximum draw. Thermostat-controlled appliances such as fridges and kettles cycle, so their average is lower; a wattmeter logging over a full day gives the true figure.
- Standby adds up: 5 W left on all year is about 44 kWh.