Previously, people did not care about how many watts a refrigerator consumes, since they did not think about saving. This is due to the fact that there was not a wide variety of devices. And electricity was relatively cheap. The family budget did not spend a lot of money on utilities. About 30 years ago, no one was interested in how many watts are spent, but now this question is considered one of the topical ones.
The modern human dwelling is simply stuffed with various devices, without which it is now difficult to imagine everyday ordinary life. All these devices consume quite a lot of electricity. Due to the large dimensions of the device, the first suspicion about what kind of household appliances takes so much money from the family budget falls on the refrigerator. Modern devices of this type perform many functions. Without them, the kitchen will not be itself. Everyone should know how many watts a classic simple refrigerator consumes. After all, this original indicator largely depends on the operating conditions of the equipment. How to do so to reduce the consumption of watts of refrigerator energy per day will be discussed below.
Statistics
According to statistics, households require 29% of the country's electricity volume. This figure is higher only in the industrial sector - 31%. The refrigerator is always running, so it is one of the largest consumers. German sociologists carried out work on calculating the use of energy by devices. It was found that if household appliances are regularly used at home - a washing machine, vacuum cleaner, iron, refrigerator, then this takes 30% of the resources. According to this criterion, the technique is in 1st place. Even for other needs, less money is spent than for the operation of devices.
Refrigerator quality
When buying new equipment, you need to pay attention to the recommendations. Feel the benefits over time. Cheap appliances usually require additional maintenance costs. In such equipment, in a short time, the seal on the doors wears out, and the energy consumption will be considerable. Even professionals cannot say how much electricity will go to operate such equipment. Therefore, there is no need to skimp on quality. By choosing a refrigerator with a suitable consumption, you can successfully save money, which is the value of the purchase. At the same time, this will not interfere with comfortable use.
Refrigerator energy efficiency
On modern refrigerators, an interesting labeling with an indication of the energy consumption class is mandatory. This thing - the labeling is actually very serious. There are only seven classes: A, B, C, D, E, F, G, however, refrigerators of classes D, E, F, G are not produced now - they are outdated and not at all economical.
Each class corresponds to a certain energy efficiency index.
What do these numbers mean? If we take a certain average value of the energy consumed by the refrigerator (calculated empirically), then the energy efficiency index indicates what proportion of this average value a particular refrigerator consumes.
For example, the energy class of the refrigerator A corresponds to the index 42–55. This means that a class A refrigerator consumes no more than 42–55% of the average value of the consumed energy. Usually, manufacturers place a sticker on the refrigerator, which indicates the actual energy consumption class. Better to focus on these numbers.
Power
The basic rule is this: the more powerful the device and the longer it works, the more electricity it consumes. On the sticker on the back of the device, you need to look for information about the power consumption of a particular refrigerator. The operating manual indicates a hypothetical consumption in our usual kWh. The manufacturer can indicate the range of power consumption, but can only indicate the maximum. It is not necessary to focus on the maximum: the actual operation of equipment usually does not require such sacrifices. The power of modern refrigerators ranges from 0.2 to 0.5 kW per hour. For comparison, the power of the washing machine is from 1.5 to 2.5 kW per hour.
Working hours
The refrigerator motor operates cyclically under normal conditions, i.e. turns on and off at regular intervals. The ratio of the part of the cycle, during which the electric motor works, to the total cycle time is called the working time coefficient, the more it is, the lower the temperature in the refrigerator and the greater the average hourly power consumption. A certain cyclicity in the operation of the refrigerator (working time coefficient) is provided by a thermostat - a device with which the temperature in the refrigerator cabinet is regulated. Products loaded into the refrigerator work as a cold accumulator; a loaded refrigerator, compared to an empty one, costs longer to be disconnected. The average working time ratio is 0.5, i.e. the refrigerator is turned off half the time, half it works.
The operating time of the refrigerator compressor is about 50%. Therefore, it works 0.5 * 24 = 12 hours per day. Naturally, this is approximate.
How to calculate the energy consumption of your refrigerator
Now that we know the operating time and power, we have an easy way to calculate the energy consumption of the refrigerator per day. The trick is to quickly calculate the energy consumption of the refrigerator per day, you need to multiply its power consumption (in kW) by its operating time. From the above, it is clear that the refrigerator works for about 12 hours a day, then its energy consumption per day will be an understandable figure obtained by this formula.
0.2 kW x 12 h = 2.4 kWh.
To calculate the cost of electricity, multiply the resulting number by the cost of 1 kWh at the rate of your region.
Advice
- Install the refrigerator away from radiators and heaters.
- Do not put hot food in the refrigerator. Cool it down to room temperature first.
