Freezers use less electricity when they run than other appliances, such as your tumble dryer. However, your freezer runs all the time and uses more electricity than most appliances each month. How much power your freezer uses in a month is related to its wattage and how efficiently you use it.
Freezer wattage generally varies depending on the size of the freezer. For instance, a 0.5 cubic metre (20 cubic feet) standalone chest freezer uses 350 watts, while a 0.4 cubic metre (15 cubic feet) freezer typically uses 335 watts.
Fridge-freezer combinations are more common in homes than standalone chest freezers and they also have higher wattage. Side-by-side fridge-freezers, which are typically around 0.7 cubic metres (25 cubic feet) can use up to 780 watts.
Most people use their freezers for around 300 hours per month. This translates to 100.5 kWh (kilowatt hours) of use for a 0.4 cubic metres (15 cubic feet) freezer. As of 2014, electricity companies charge an average of 17.2p per kWh, so the monthly cost of running a freezer is around £17.30 per month.
Use less electricity
Older freezers can use more energy than a new, energy-efficient model uses, so you can use less electricity by replacing your old freezer with an eco-friendly model. You can also save energy by keeping your freezer full so there's less air for it to chill.