What are the devices that consume the most energy?

Refrigerator, dishwasher or internet box, our everyday appliances sometimes consume more than we think. A look back at its energetic impact and the means to limit it.

«RTE asks the French to defer their electricity consumption to this weekend instead of Monday with regard to the use of household appliances“. The call from the manager of the national electricity network, linked to the strong cold wave currently affecting the country, it can also push us to review our consumption of everyday devices. Refrigerator, dryer, electric oven, which appliances consume the most energy? And what are the best ways to moderate your consumption? The Figaro Make the point.

the fridge freezer

With an average annual consumption of almost 400 kWh per year according to ADEME (French Agency for the Environment and Energy Management), the combination of these two conservation it is certainly the most energy intensive. Although essential, there are ways to better limit the consumption of these two devices.

From a practical point of view, it is preferable to adopt the appropriate temperature settings: between 4 and 5 degrees for the refrigerator, -18 degrees for the freezer. It is also necessary to carry out regular maintenance on your appliance, in particular the rear grille and the gaskets.

According to ADEME, “accumulated dust and dirt can be the source of 30% of the electricity consumed by the device“. Finally, make sure to let the air circulate in the device and not to crowd food. It is also not recommended to leave the doors open for too long.

The dryer and the washing machine

The two devices consume an average of 200 and 100 kWh per year, respectively, according to ADEME. As with the fridge and freezer, there are simple habits to limit your energy impact.

The dryer represents about 15% of the power consumption annual home. To limit electricity consumption, do not overload the drum too much so that the hot air circulates well inside it and clean the filter periodically.

For him washing machinefavor low temperatures, a wash at 30 degrees consumes three times less energy than a wash at 90 degrees, a cold wash twice less than a wash at 40 degrees.

Do not hesitate to use the program “ecologicalwhich saves water and therefore energy. Finally, be sure to optimize the drum fill to include the maximum amount of laundry.

The dishwasher

ADEME’s first recommendation: “Consider changing your dishwasher if it’s old“. With an average annual consumption of about 180 kWh per year, a change of appliance can be welcome, recent models consume half as much water as those of ten years ago.

Bearing in mind that 80% of the energy consumed by a dishwasher It is used to heat water, the less water the device consumes, the less energy it consumes. As for the washing machine, prefer the mode “ecological” Where “50 degreesthat can reduce consumption by up to 45% compared to an intensive program.

More generally, it is preferable to remove crumbs from the crockery beforehand, clean the filter and gaskets regularly, and run the machine during off-peak hours if your rate option allows it.

plates and oven

With an annual consumption of approximately 120 kWh for the plates and 100 kWh for the oven, cooking food is expensive in terms of energy.

For baking sheets, there is a simple tip when you do boiled water : put a lid on the pot, the water will boil faster and you will consume about four times less energy.

For fans of convection ovens, take the opportunity to cook several dishes at the same time, you will save cooking time and therefore energy.

Computer and high-tech equipment.

According to ADEME, “the computer equipment of the French represents an increasingly important part of their electricity consumption“. Starting with the internet box that would consume between 150 and 300 kWh per year for each household. To the extent that 93% of the French had access to the Internet in 2021 (Insee), the energy impact is growing.

computer The landline consumes between 120 and 250 kWh per year, the portable between 30 and 100 kWh.

For television, the impact is also significant to the extent that its standby consumption of 20 hours is equivalent to four hours of viewing.

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