Basic knowledge of energy efficiency labeling of household appliances-energy efficiency grade
Energy efficiency grade: it is a grading method to express the energy efficiency difference of household appliances. According to the relevant provisions of national standards, energy efficiency is divided into five grades in China's energy efficiency labeling at present.
◆ 1 grade: the energy saving of the product has reached the international advanced level, with the lowest energy consumption;
◆ Level 2: The product is more energy-saving;
Grade 3: the product energy efficiency is the average level of China market;
◆ Grade 4: The product energy efficiency is lower than the market average;
◆ Level 5: refers to the market access index of products, and products below this level are not allowed to be produced and sold.
Identification reference value
In addition to the specified energy efficiency grades, the reference values on the energy efficiency labels of different household appliances will be different.
fridge
For refrigerator products, in addition to the conventional classification, there is also a 24-hour power consumption on the energy efficiency label that is worthy of reference. By the given value, we can get a general idea of the power consumption of this refrigerator in one day.
washing machine
In the energy efficiency label of washing machine products, it is worth mentioning the power consumption, water consumption and washing ratio of a working cycle. If the conventional energy efficiency classification can meet your purchasing needs, then other parameters are also worthy of reference and easy to understand.
air conditioning equipment
For air-conditioning products, the products currently on the market are generally divided into three energy efficiency grades, and the energy efficiency ratio, input power, refrigeration capacity and other data will be given on the energy efficiency label. Energy Efficiency Ratio (EER) is the value obtained by the ratio of rated cooling capacity to rated power consumption, and can also be understood as the value of the ratio of cooling capacity to input power. Often the higher the energy efficiency ratio, the more energy-saving the air conditioner.
Rice cooker
In addition to the conventional classification, the energy efficiency label on the rice cooker will also indicate the thermal efficiency value, standby power, insulation energy consumption power, inner pot material and so on. The higher the thermal efficiency, the more energy-saving the rice cooker.
microwave oven
For microwave ovens, there will also be energy efficiency value data on the energy efficiency label. The higher the efficiency value, the more energy-saving the microwave oven.
liquid crystal TV
Now the popularity of flat-panel TV is already very high. The energy efficiency index of LCD TV and passive standby power will be marked on the energy efficiency label of flat-panel TV. The lower the energy efficiency index, the more energy-saving the TV.
electric water heater
Electric water heaters are definitely big consumers of electricity. The energy efficiency label of electric water heater will have 24-hour inherent energy consumption coefficient and hot water output rate. The 24-hour inherent energy consumption coefficient refers to the ratio of the energy actually needed to maintain the water temperature at the set temperature to the energy defined by the standard without using the water heater. The lower the ratio, the better the insulation effect of the water heater. The higher the hot water yield, the better. Generally greater than or equal to 70%.
Generally speaking, the information on the energy efficiency label still has certain reference value, but most people don't know the specific meaning of these data. If you really care about the energy consumption of household appliances, I suggest you know the representative significance of the label value in advance before buying.