The question of how much electricity your kitchen unit “eats” is becoming increasingly relevant as utility tariffs rise. Many owners of old appliances do not even suspect that their freezer can be the main energy hog in the house, surpassing even the washing machine or TV in terms of costs. Modern models marked A++ and higher can reduce these costs significantly, but the real figure often depends on operating conditions.
Understanding the mechanisms of energy consumption allows you not only to save your budget, but also to extend the service life of the compressor. In this article, we will look at what consumption depends on, how to correctly calculate the costs for your model and whether it is worth replacing an old refrigerator for the sake of saving. Information about energy efficiency classes will help you make the right choice when purchasing.
Factors influencing energy consumption
Energy consumption refrigerator - the value is not constant, but variable, depending on many parameters. First of all, this the volume of the refrigeration and freezer compartments: the larger the space needs to be cooled, the more work the compressor gets. The temperature regime of the environment is also critically important: in the summer, when it is hot in the kitchen, the unit is forced to work more intensely in order to maintain the set parameters inside.
The quality of door seals plays a huge role. If the rubber bands are worn out or the door does not fit tightly, warm air constantly flows inside, causing the equipment to turn on more often. In addition, the frequency of door openings and the amount of food loaded directly affect the compressor operating cycle. The presence of additional functions, such as an ice maker or a freshness zone, also increases overall consumption. The system compressor cycle.
Availability of additional functions such as No Frost, ice maker or freshness zone, also increases overall consumption. System No Frost requires the operation of fans and heaters for defrosting, which adds about 10-15% to the base consumption.
⚠️ Attention: Installing the refrigerator close to the wall or in a niche without gaps for ventilation leads to overheating of the condenser. This forces the motor to work to the limit, increasing energy consumption by up to 30%.
Energy efficiency classes: what the letters mean
To standardize electricity consumption, an energy efficiency scale has been introduced, designated in Latin letters from A to G. Previously, there were classes A+, A++ and A+++, but since March 2021 in the European Union and many other countries they have returned to a strict scale A-G, where A is the most economical. The old A+++ designations now roughly correspond to the new class C or D, which can confuse the buyer.
The difference in consumption between class G (the most energy-intensive) and class A (the most economical) is colossal. Modern inverter compressors, which are often found in the higher classes, work smoothly, without constant switching on and off, which provides the main savings.
When choosing equipment, pay attention to the sticker with a color scale. The figure shown there shows the annual consumption in kilowatt-hours under standard testing conditions. However, in real life, this figure may differ.