When choosing a large appliance for our home such as the refrigerator and/or the freezer, many variables must be weighed to buy a model suitable for our type of use and which does not involve a large expense in the electricity bill. electricity every month. .
According to the Institute for Diversification and Energy Saving (IDAE), an average Spanish household consumes around 4,000 kWh of electricity per year, most of it due to the use of large household appliances with around 61.8 % of the total and the rest to other small appliances for daily use and to “phantom consumption” or equipment in standby mode, which represents up to 6% of the total.
Among typical home appliances, we can clearly differentiate between two classes of equipment based on their usage time and power consumption. First of all, we have those that we usually pay attention to, which are those that consume a lot of energy on an ad hoc basis (typically more than 1000 watts) requiring a lot of energy for short periods of time, such as the oven, the iron iron, ceramic hob or washing machine.
How much electricity does a refrigerator consume?
Secondly, there are devices that have low consumption (well below 1000 watts) but whose use time is several hours throughout the day, as is the case, for example, of refrigerators , freezers or television. Also, as with refrigerators, they can’t be turned off to save money, which forces us to have them on all day.
Its maximum consumption rarely exceeds 200 watts per hour, with total average values between 500 and 1,100 watts per day, although these depend a lot on the size of the refrigerator, its load and the environmental zone in which we live. .
The main thing with these devices is that they are on 24 hours a day, which represents up to 18.9% of the total cost of electricity for homes according to the IDAE or up to 31% according to studies by the ‘OCU.
This consumption depends largely on the energy efficiency of the device, a fact that we can discover by looking at the new efficiency labels that came into force in March 2021, where an estimate of the electricity consumption in kWh per year is also indicated.
Thus, the models which belonged until now to class A+++ are now assigned to class B, to make room for the improvement of the energy efficiency of new products. Class A, the most efficient, was first deserted. And not only does the letter on the label change, but the new regulations also change the calculation system, so there is no direct correspondence between the old and the new label.
Given the above average consumption and daily average electricity prices for PVPC tariffs, this can easily mean spending between 20 cents and 50 cents per day for every fridge or freezer we have (for example, we should multiply by two in side-by-side models or if we have a trunk, add its cost separately), which at the end of the month can translate into a considerable sum between 6 and 15 euros.
Tips for saving on refrigerator electricity consumption
Although the ideal way to save as much as possible is to buy a refrigerator that has the best possible energy efficiency, if our model still works well and we do not plan to buy a new one, there is still tips and tricks we can follow to reduce your electricity costs:
In the first place it is practical to choose a temperature maintained between 4 and 5 degrees, although sometimes if we want to store more delicate foods we can lower it slightly or, even better, place these foods in the lower part of the refrigerator, which is always the coldest place.
As for the freezer, it depends on the type of food we store, but in general having it at -16 or -18 degrees is more than enough, despite the fact that our model can reach -22 or -24 degrees this does not is not the case necessary to put it at such temperatures.
Think about what we want out and where it is before opening the door. Each time we open the door, warm air enters from the outside and we will need more energy expenditure to return to the level of cold we had before.
Do a good external interview. The refrigerator is basically a heat exchanger. It generates cold inside at the cost of heat emission to the outside by dissipators generally located at the back of the device.
Most modern models come with these plastic covered grilles and there isn’t much to clean, but older and lower range models usually have these conspicuous rear grilles, which tend to fill with dirt , which makes it difficult to emit the heat generated by the compressor.
Defrost from time to time without our model being No Frost. According to an OCU study, three millimeters of frost on the walls of the freezer increases electricity consumption by 30%.
Check that the interior light bulb is of the LED type. This technology, in addition to consuming less, generates little heat and therefore does not reduce the internal cold of the refrigerator each time it is turned on.
If you are going to be away from home for a long time, it should be left clean, empty, and unplugged to avoid unnecessary expense and hassle.
The organization of food inside is essential. It is recommended to have it as full as possible but without the packages being compressed, using the special compartments that each model offers us for foods that require specific temperatures.
Of course, try to avoid putting hot foods in the fridge or freezer. It is preferable that they are first cooled in the air or by means of a cold water bath rather than introducing them as soon as they are cooked, because we can spoil the foods that were already in the oven. interior and we will also increase electricity consumption.