Millions of people have a smart TV, a computer or other electrical devices at home, but many of these are not used in the correct way due to the bad habit of leaving them plugged in for several hours when they are not in use. This action generates a “phantom consumption” which causes a significant increase in electricity bill. In this sense, you should know which are the devices that you should not leave connected for a long time.
Many of the appliances in use today are used with remote controls. Sound equipment, televisions and air conditioners can be turned on remotely and have an energy consumption called stand-by. That is, like microwaves, telephones and computers, they consume energy in silent mode.
According to experts, consumption stand-by can represent up to 10% of the energy consumption in homes, depending on the number of appliances you have and those that are left connected for several hours.
What is “phantom consumption” of electricity and how to avoid it?
Even if they are off or on stand-by, many of the electrical devices you have at home continue to consume energy because they continue to be connected to the mains and, therefore, waste electricity. This causes a “phantom consumption” that can considerably increase the electricity bill of our house.
The easiest solution is to get in the habit of unplugging all the electrical devices that we are not using. However, we must also know how much energy the equipment we have at home consumes, according to information provided by the Ministry of Energy and Mines.
- TVs: running commons consume 186 volts. Standby uses 3.06 volts. Off, although still plugged in, it draws 2.88 volts. LCDs draw 28 volts on, 1.38 when on standby, and 1.13 off and plugged in.
- Desktop: when it is turned on and in use it consumes 74 volts, while in standby it has an average consumption of 2.8 volts. However, the power consumption of computers can rise highly if the equipment is turned on with the screen off, reaching up to 73.9 volts.
- Notebook computer: fully charged, turned on and running requires about 30 volts. Running and charging, 44 watts. Powered off and plugged in, it draws 8.9 volts. The charger only plugged in does the same with 4.42 volts. However, in standby or sleep mode, the consumption could rise up to 15 volts.
- Stereo: off it can consume 8.4 volts, but it also has variations such as lights, stations or clocks that can increase electricity consumption to 14.4 volts.
- cell phone charger: when charging, the smartphone consumes between 2 and 3 watts, but when left plugged in without charging it receives 0.26 volts.
- Printing machine: this apparatus in standby mode it has an average consumption of 5 volts per hour.
- Modem or router: one of DSL working reaches 5.37 volts. Off and on it is 1.37 volts. The cable modem uses 6.25 volts when it is running, as well as 3.84 while it is turned off and plugged in.
- Scanner: in use it consumes 9.6 volts. If it is still plugged in when not in use, it continues to draw 2.48 volts.
- Microwave: It is the electrical appliance that consumes the most energy. turned on and in operation it reaches 1433 volts. If it’s not unplugged, it’s 3.08 volts. However, if you left the door open and it’s still plugged in, it draws 25.79 volts.
- Electric kitchen: turned on they usually consume 340 volts, but turned off and plugged in it reports 4.21 volts.
What happens if you leave your laptop always plugged in?
The advancement of technology has allowed laptop batteries to last longer, so he says it’s “absolutely safe and perfectly normal” to leave your laptop plugged in for long periods of time.
Although keeping the laptop always plugged in does not cause damage to the equipment, this action inevitably causes ‘phantom consumption’ of electrical energy. According to official information from the Ministry of Energy and Mines, the laptop in operation and charging consumes 44 watts. Standby, 15 volts. Powered off and plugged in, it draws 8.9 volts. The charger only plugged in does the same with 4.42 volts.
Why shouldn’t you leave your phone charger plugged in?
According to the official website of the Ministry of Energy and Mines, when the charger is plugged in with the phone, the power consumption is between 2 and 3 watts. Meanwhile, when it is left connected without charging it is 0.26 volts.
Although the number of watts will not have a considerable impact on the electricity bill of our house, it is best to avoid ‘phantom consumption’ of electricity and get used to disconnecting the mobile charger when we are not using it.
Currently any new charger smartphones it is designed so that, even when plugged in and without a connected device, it does not accumulate any or almost no energy. In addition, they have safety technology that prevents the adapter from overheating and shorting.
However, the situation changes when we do not use a original charger. If we leave it for a long time, the poor quality of the cable or adapter is a potential fire hazard.