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Electricity bill increased because of forgetting to remove the charger? The surprising truth

High electricity bills are not only due to increased usage, but also due to “standby power” from devices that are left plugged in. Unplugging when not in use can save you a lot of money.

Báo Khoa học và Đời sốngBáo Khoa học và Đời sống03/10/2025

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According to Energy.gov, many people are surprised to discover that household appliances still consume electricity even when they are turned off.
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According to the US Department of Energy, standby electricity can account for 5%-10% of a household's total electricity consumption.
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Common culprits include phone chargers, desktop computers, media players, or smart home appliances.
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One study found that even an old radio can consume 4 watts continuously even when not turned on.
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On average, each household loses up to 165 USD/year just by leaving electrical devices plugged in continuously.
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Unplugging immediately after use can save 100 times more electricity over the life of the device.
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If you find it annoying, users can choose a switch socket, timer or smart socket to automatically turn off the power.
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Additionally, replacing incandescent bulbs with LEDs or using smart thermometers can also save money in the long run.
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Source: https://khoahocdoisong.vn/hoa-don-dien-tang-vi-quen-rut-cu-sac-su-that-bat-ngo-post2149057623.html


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