How many kilowatts does a washing machine consume

In the modern world, there is more and more talk about saving energy and using energy saving appliances. This applies not only to light bulbs, but also to all other devices that we use daily.

Washing machines are no exception, because knowing how many kilowatts a washing machine consumes is very important, because this device is quite powerful and can seriously affect electricity consumption in general. And if you do laundry every day or several times a day, then it may be worth considering buying a more economical washing machine in a higher energy class. If you do not know what the energy consumption classes of washing machines are, then read below about it.

What are washing machine energy classes

Washing machine energy classes
In general, the power of any electrical appliance is measured in watts, and only by them can one accurately determine the power consumption of a particular appliance. But if you do not have the proper knowledge, then it is quite difficult for you to understand what these numbers mean and how to navigate them. Therefore, manufacturers have come up with a very convenient system for determining the energy savings of electrical appliances, calling it energy classes.

These classes are denoted by Latin letters (A, B, C, D, E, F, G) by increasing energy consumption. A is the most energy efficient class, G is a device with a huge consumption of electricity. It also happens that a “+” sign is added to the letters themselves, which indicates even more efficient energy consumption. To date, a washing machine with a class "A ++" is the most economical of all existing ones.If your finances allow, then it is best to purchase just such a model, it will be very economical.

Now you do not need to count the number of kW consumed by the washing machine, you just need to look at the letter of its energy efficiency to draw a conclusion about its electricity consumption.

Correspondence of energy consumption classes to real electricity consumption

For those who still want to understand in more detail the amount of electricity consumed by a washing machine, they can simply remember the correspondence of the energy consumption class to real kilowatts.

Below is a table in which you can see the name of the class and the corresponding electricity consumption in kilowatts per hour for one kg of laundry. That is, this means that if you put exactly one kilogram of laundry for washing and wash it in a washing machine with the corresponding energy consumption class for exactly 1 hour, then you will spend the amount of energy indicated in the table.
Data given in kWh/kg

Energy class Electricity consumption, kWh/kg
A++ < 0,15
A+ < 0,17
A 0,17…0,19
B 0,19…0,23
C 0,23…0,27
D 0,27…0,31
E 0,31…0,35
F 0,35…0,39
G > 0,39

Of course, you must understand that these calculations were carried out on special stands in ideal conditions and with a certain type of laundry. In your case, the type of laundry can vary significantly, as well as other parameters that affect the electricity consumption of the washing machine, so treat these indicators with an understanding of the situation.

The energy efficiency class of washer-dryers is calculated according to a different principle and differs from conventional washer-dryers.

What else affects electricity consumption

How many kilowatts a washing machine consumes in one wash is influenced by a lot of different factors. Let's take a look at them:

  • The first and most important thing that affects electricity consumption is the washing program and, in particular, the selected washing temperature. The higher the temperature, the more electricity is required to wash clothes.Also, the longer the wash, the more energy is needed for it.
  • The load of the washing machine is also of great importance. As you saw in the table above, the calculation of energy consumption is taken per kg, so the more laundry you load into the drum, the more energy you use.
  • The type of fabric and clothing also affects the power consumption of the unit. The fabric in the wet state may differ in weight, respectively, and require a different amount of electricity.
  • Service life of the device. How your washing machine is older, the more scale formed on the heating element, which complicates the heating of water and increases energy consumption.

As you can see, there are a lot of factors that affect the energy efficiency of washing, so the exact electricity consumption of your washing machine can only be calculated using serious measurements and calculations, which cannot be done without special tools and knowledge. But trust me, you don't need it. To understand if a washing machine is economical, you just need to look at its energy efficiency classthe higher it is, the better.

It should also be noted that much less electricity is consumed by machines of a separate type - inverter washing machines. These washing machines consume up to 20% less electricity than conventional washing machines.

And if you want to know more accurately the kWh consumption of a washing machine, then take the appliance passport and find its power consumption, and then simply multiply this power in kW by the number of washing hours. You will get the number of kWh spent on one wash.

For example, if your washing machine consumes 0.3 kW, and the time for a full wash cycle was 45 minutes, then:
Convert minutes to hours 45/60= 0.75h
We multiply the power by hours 0.3 kW * 0.75 h \u003d 0.225 kW • h
That is, for one wash, our counter wound 0.225 kWh, which is not so much for such pleasure as washing clothes in an automatic machine, and not with your hands in the old fashioned way.

Comments

Strange calculation. Not physical and illogical. “We multiply the power by the clock 0.3kW * 0.75h = 0.225kW / h” like multiplying, but the units of measurement were suddenly divided. Maybe it's time for someone to go back to school? As a result of such a multiplication, energy (work) in Joules (kWh) should be obtained!

What does it mean to take an hour of 0.3 kW? It all depends on the download. My machine takes (according to technical characteristics 0.130 kW / h per kilogram of laundry or something else. And what kind of machine is 0.3 kW / h. It probably only has a load of two kg.?

After its measurement, it turns out that the manufacturer, to put it mildly, underestimates
aet indicators.