Although many people on the Internet feel that after switching the meter, the monthly electricity consumption is slightly higher than in the past, but because the electricity consumption is related to the season, no one can judge the reason. To this end, the reporter of Jiangsu Radio and Television News Center found the Jiangsu Electric Power Academy. After the household meter is delivered, it must accept dozens of tests here, including errors, pressures, etc., fully qualified to allow installation and use, it is impossible to run fast. table.
Liu Jian, Ph.D., of the Measurement Center of Jiangsu Electric Power Research Institute, told the reporter that the national standard has a 2% error rate for residents, while the State Grid Corporation's error rate is close to 0.6% .
This means that the second-generation smart meter will be more precise and sensitive. For example, in the past, it is difficult to count the total amount of water. After the water meter is improved, a drop of water will be charged. Similarly, as long as there is current, it will be counted in the electricity consumption by the new meter.
Therefore, the reporter asked the power testers to check together, which appliances are stealing our electricity.
Not much to say, first test the most commonly used TV set, we decided to test two states: one is the TV set under remote control, the other is to turn off the TV switch, but do not unplug the power cord.
The data shows that the TV consumes 0.65 watts in standby mode and 0.60 watts in the off state. After one month, the two consume 0.5 and 0.45 degrees respectively. Similarly, the power consumption of the washing machine and the hanging air conditioner plug is 0.4 watts and 1.2 watts, respectively, and the monthly power consumption is 0.29 degrees and 0.86 degrees. Then, isn't the plug-in air conditioner the most power-hungry appliance?
Everyone was shocked when the network set-top box was detected! In standby mode, the power consumption is 5.98 watts, and the working state is only one watt difference!
A small network set-top box, the power consumption in standby mode is ten times that of the TV set! If you only turn off the remote control and do not pull the power plug, the set-top box will eat 50 kWh of electricity in the next year, far exceeding all the large appliances! Not only that, but there are also some small appliances related to the network, which consume more electricity than traditional electric appliances.
Tests show that small appliances are more energy-intensive, notebook standby is 0.95 watts, wireless routers are 2.3 watts, and mobile phone chargers are close to zero. However, it is worth noting that if the phone is still connected to the charger when it is fully charged, the power consumption is as high as 2.14 watts, second only to the set-top box and router. In this way, it is very energy-saving to plug the phone into the charger. Finally, let's calculate the account, how much electricity does it cost in one month for these appliances to stand by?
| Monthly electricity consumption of electrical appliances | |
| 1 TV | 0.5 degrees |
| 1 set top box | 4.3 degrees |
| 1 laptop | 0.68 degrees |
| 1 router | 1.66 degrees |
| 1 charger for mobile phone | 1.54 degrees |
| 1 washing machine | 0.29 degrees |
| 2 hanging air conditioners | 0.86 degrees +0.86 degrees |
Calculated about 10.6 kWh a month, according to the current Jiangsu electricity price is equivalent to a month to spend, 4 5 cents, 54 yuan a year. Don't look at these, it's not too much, but it's not a small expense for many years. In this regard, the truth-seeking laboratory recommends:
1 When the appliance is not in use, try to unplug it;
2 high-power appliances can be reopened at a valley value after 9 pm;
3 buy low-energy appliances.
I used to think that it was definitely the power consumption of TV air conditioners. I didn't expect that the set-top box and mobile phone charger would consume more power when the socket was not in standby. It seems that I really have to pay attention in the future. Saving can save money, and energy saving is environmental protection.
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