The energy efficiency class of office equipment is a marking that enables a person to evaluate the energy efficiency of devices due to full information about him.
Probably everyone saw the stickers that the manufacturer provides. They are usually located on the front of the device. This is the necessary marking. This information must be used if you want to choose a powerful and economical technique. It is for this that a class of energy efficiency has been created. But how to use the information on the labeling? Let's look at it.
Marking
This is a pretty simple task. You must choose the equipment on which the class A, A +, A ++ or A +++ markings are located. In order to calculate energy efficiency, it is necessary to summarize the operating mode and certain technical characteristics that correspond to this type of equipment.
For example, you can consider the energy consumption for a washing machine. How to do it? It is necessary to calculate the maximum load and energy consumption, which corresponds to the hour of work. If we consider the oven, then the consumption of electricity will depend on power and volume.
To effectively save electricity, you need to deal with technical specifications. For example, air conditioners need to consider 3 parameters:
- channels that are located in the split system;
- the presence or absence of water cooling;
- the presence of heating.
Classes of energy efficiency for household and office equipment in Russia - 7, and in the USA and Europe - 10. These indicators need to be paid attention to when choosing any equipment. All energy efficiency classes are shown on the label.
What do the different types of markings correspond to?
- The letter A, A +, A ++ or A +++ indicates that the energy consumption is 45% less than that of a conventional device. This marking is placed on high-quality and energy-efficient equipment that can last about 15 years.
- The letters B and C indicate a less efficient technique that consumes 25% (for B) and 5% (for C) less electricity than a standard technique.
- The letters D and E correspond to average energy efficiency. Electricity costs will correspond to standard appliances (for D). Equipment labeled E consumes 10% more than conventional equipment.
- The last class is uneconomical equipment. Devices marked F and G will consume 25% more than standard counterparts.
Tables and their meaning
Today, the main direction in energy conservation is the production of equipment that is created using new technologies. These devices try to make them consume as little electricity as possible. All modern household and office equipment is created taking into account this parameter. Therefore, it is worth paying attention to the energy efficiency class of office and household appliances, choosing equipment.
As we already found out earlier, this information is made out in the form of a sticker on which there is a bright table with all the values. Usually glue it on the front side of the device.
If you choose the right technique, then you can choose economical equipment without any problems. Remember that the classification is the same for any appliance, but consumption rates may vary slightly. Therefore, when buying, it is worth considering a table of energy efficiency classes of equipment.
Marking in the EU countries
Energy efficiency classes were originally created in the European Union. Based on their information, some countries began to independently develop their estimates for technology. But this did not become an obstacle to the spread of the European system. Now on the vast majority of various devices you can see the European markings. It was introduced on the basis of studies by the EU Commission on Transport and Energy. Russia also adopted the developments that were made in the EU countries.
Such a step in effective energy consumption has many positive factors:
- people can save, as this will reduce utility costs;
- the state will be able to save resources and budget;
- this way you can save the environment;
- energy companies will reduce production costs;
- the most important thing is that you can reduce the use of natural resources.
Energy efficient household appliances
Class A energy-saving equipment is fairly common on the market. This contributed to the fact that some foreign companies introduced new designations for their equipment, namely: A +, A ++ and A +++.
Cooling technology
Today, on any high-quality cooling equipment, you can see that manufacturers are depicting an energy efficiency index on the label. What does it depend on? It is calculated from the percentage of energy consumed per year and energy consumption for a conventional device of the same type.
At the same time, in order to calculate the average electricity consumption, it is necessary to take into account the volume of the chambers, as well as additional characteristics: defrosting and temperature conditions. Also on the marking you can see the volume of the working compartments.
The following parameters should be shown on the refrigerator label:
- Trademark and manufacturer.
- To identify the technique, a special code must be displayed.
- The energy consumption of this model for a certain period.
- The manufacturer must indicate the volume of compartments in which the operating temperature is more than 6 degrees.
- Storage volume in places where the operating temperature is less than 6 degrees. These compartments should be marked with asterisks.
- Of course, the energy efficiency class must be indicated.
- Noise level of equipment at work.
Washing machines
On washing machines you can see different types of markings. What does each of them correspond to?
Until 2010, energy efficiency was based on washing in the "Cotton 60 degrees" mode. This must be taken into account when the drum is fully loaded. Manufacturers had to fix how much energy is spent for 1 hour of work when washing one kilogram of laundry. It was also necessary to consider that the initial temperature is 15 degrees.
Later, a directive appeared, according to which it was customary to take into account annual electricity consumption. It is necessary to monitor the consumption of electricity in operation mode and in standby mode. Energy efficiency should be calculated based on 220 washes per year. Of course, they should be performed at different types of load, that is, 42% - washing at full load and 60 degrees, 29% - incomplete loading, half of which occurs at 60 degrees, 29% - incomplete loading, but washing at 40 degrees. Equipment that meets Class A consumes less than 340 kW per year.
The markings for the washing machine usually indicate:
- As in the previous case, the trademark and manufacturer are indicated, a code in the form of numbers and letters to identify the model of the respective manufacturer, energy efficiency class.
- Water consumption based on research for the year.
- Energy consumption based on the same period.
- Energy efficiency of drying clothes.
- Maximum drum loading (this parameter is indicated in kilograms).
- The noise level of this equipment in the "Cotton 60 degrees" mode.
laundry dryer
To calculate the energy efficiency class for a dryer, it is necessary to consider drying clothes during a full load of equipment. When evaluating energy consumption, the parameter is taken into account - the number of kW * h per 1 kilogram of linen.
The marking shows information about the brand and manufacturer, an alphanumeric code to identify the model, the class of energy efficiency.
The dryer is characterized by the following parameters:
- energy consumption for a certain period;
- mode of this equipment;
- device loading;
- drying time, this characteristic is taken into account at full load;
- noise level.
Dishwashers
Until 2010, in dishwashers, in order to estimate energy consumption, it was necessary to take into account the energy expended and the operating mode. Now the definition of energy efficiency class involves the calculation of 275 washing cycles, also began to take into account the standby mode. Efficient dishwashers consume 462 kilowatts per year.
Characteristic parameters that correspond to this type of technology:
- calculation of water consumption for 1 year of work;
- power usage;
- noise level;
- also takes into account the number of sets of dishes that are needed for a standard work cycle.
Lighting
To determine which class of energy efficiency of household appliances a lamp belongs to, it is necessary to take into account the energy consumed. Next, you need to compare it with old incandescent lamps.
Energy efficiency classes of lamps:
- The letter A includes LEDs and fluorescent types, as well as some fluorescent lamps with closed bulbs.
- Class B includes certain fluorescent tubes with closed flasks and halogen infrared lamps.
- If the letter C is shown on the marking, then this is a halogen lamp with xenon.
- Classes D, E, F include various halogen types.
- The latter are incandescent lamps. They correspond to the marking from E to G.
Office household special equipment. Energy efficiency class
Unfortunately, today there are no tables of energy classes that are suitable for each office appliance. This can be explained by the fact that this type of technology is very diverse. In this wide assortment there is a rather large variation in the technical parameters and direction of a particular device.
How to determine the energy efficiency class of office appliances? To reduce power consumption, you need to choose modern models of office equipment. Each new generation consumes less electricity, but surpasses older models in technical specifications. For example, monitors with a radiation tube need to be exchanged for modern LED screens, which consume much less electricity.
The energy efficiency class of a computer is difficult to determine, since it depends on many details. It should be remembered that gaming laptops will consume much more power than budget models. But this does not mean that new and expensive components will not be effective and reliable.
The energy efficiency class of a computer is more determined by the power supply. That is why a certification program was developed for them. Now it is recommended to buy power supplies on which the marking is indicated - 80 PLUS. Remember, the higher this value, the more economical and reliable this part is.
Conclusion
If you want to choose devices that will consume little electricity, you need to familiarize yourself with the energy efficiency classes of office equipment. Of course, if the necessary types do not have the appropriate marking, then it is better to choose a new technique. It is usually quite effective, powerful and consumes little energy. For example, if you want to choose a printer, then you need to look at the table of energy efficiency classes of the printer. Thus, you can choose a quality model.