After seeing their own electricity bills, some small partners said that they couldn't believe it: They worked in the unit during the day! After going home, they slept very early. No appliances were used. How did they spend so much electricity?
Is it wrong?
Take a look at the news, not you are bothered:
On July 31, 2017, C City citizen Lao Tan told the power supply company: 'My family is the old couple, each time the electricity bill is more than 200, unreasonable!' After investigation, it turned out that the power in the cabinet was 2000 watts. The electric water heater that has been plugged into the socket is playing a ghost.
Through the verification, the original culprit was: The plug that was not unplugged!
In order to save trouble, many small partners use TV, washing machine, air conditioner and other appliances, and then press the shutdown button, the plug will not be unplugged.
However, these electrical appliances do not pull out, and for a long time, it really wastes a lot of electricity!
Why don't the plug be plugged, why is it charged?
Those high-power household appliances with remote control switches, such as air conditioners, water dispensers, vacuum cleaners, etc., are turned off after the main unit is still in standby state, and are still receiving signals.
In particular, after some TV sets are turned off, the picture tube is still in the preheating standby state. In the standby state, there is still 8.1 watts of power consumption.
How much electricity is wasted without plugging?
Previously, the power supply staff came to the home of Ms. Zhang, a citizen of Chaoyang District, a city, and took out an electrical parameter measuring instrument to measure some of the home appliances of Ms. Zhang's home.
Ms. Zhang’s home uses central air conditioning. When the air conditioner is not cooling, it is also plugged in at the standby state all the year round. The test found that the air conditioner in standby mode still consumes a lot of electricity. Ms. Zhang’s central air conditioner is used at boot. The power is 3000 watts, the power is 60 watts in standby mode, and the power consumption of air conditioning standby is 1.44 kWh per day. It consumes 43.2 kWh per month. The electricity bill is more than 20 yuan, and more than 500 kWh is used in one year.
Therefore, the metering and testing personnel suggest that the set-top box should be turned off without watching TV. Otherwise, standby will cost Baidu.
In addition to Ms. Zhang, a city's power supply staff also measured in the home of Mr. Fan in Hanyang District.
The air conditioner does not pull the plug, and the measured power is 12.3 watts, which is estimated to consume 8.8 kWh per month;
TV, the set-top box does not pull the plug, the measured power is 5.2 watts, and it consumes 3.7 degrees in one month;
The computer, the wireless router does not pull the plug, the measured power is 5.0 watts, and the power consumption is 3.6 degrees per month.
To calculate this, Mr. Fan's air conditioner, TV, set-top box, computer, wireless router, when not in use, do not pull the plug, it will consume 16.1 degrees in one month, 193 degrees in one year. According to the ladder price For the first gear, the annual electricity fee is 111 yuan. If it is included in the second and third gears, the cost is higher.
Although there may be errors in the measurement results of different brands of electrical appliances, it is not difficult to see from the data that most electrical appliances, as long as they do not pull the power supply, will consume power unknowingly.
What to do to save trouble and save electricity?
It is recommended that you try to select the power strip with switch, such as opening five holes, opening three holes, etc., so that the appliance can be turned off when it is stopped.
In addition to this, we have to remember the following points:
(1) Do not only turn off the remote control switch. Like TV, set-top box, fully automatic washing machine, etc., be sure to turn off the mechanical switch.
(2) There is no mechanical switch in the air conditioner. If the plug is plugged in, it will consume power. When not in use, it is best to unplug the power supply.
(3) Although the computer consumes less than half of the power consumption after being turned on, it still has 4.8 watts of energy consumption. Therefore, the best way to reduce the energy consumption of computers and monitors is to not turn off the plug in time.