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Electricity Consumption of Standby Devices and Impact of Daily Power Disconnection

Juhas19 47869 42
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How much power do standby devices consume, is it worth disconnecting them daily, and can I safely switch them off with a power strip without waiting before turning them back on?

Yes—turning standby devices off can save some electricity, especially if you have many of them, and using a switched power strip or a timer strip is a practical solution [#6922672][#7273233] Modern devices are often limited to about 1 W in standby, while older equipment can draw around 5–10 W each, and some set-top boxes or PC power supplies can consume much more, so the total can add up noticeably over a year [#6926679][#6923064][#9443589] One user measured a home setup with TVs, receivers, chargers, and a computer at about 40 W idle, and another reported savings of up to PLN 100 per year after measuring with a wattmeter [#6926980][#6923064] Disconnecting and reconnecting them daily should not harm the equipment, and there is no need to wait after plugging them back in before using them [#6922645][#6922672] The main downside is that some devices may need their clock or settings reset after power loss [#6922645][#6922680]
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #31 8891136
    MiL999
    Level 26  
    The laptop has a power supply that is always on. Same with the charger.
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  • #32 8895079
    komandor64
    Level 25  
    And I don't turn off ;) . Someone once told me that turning off the TV every time, for example, quickly hurts him, so I stick to this rule. And I don't count how much I save and how much I don't - at least for now I can afford such "prodigality" ;) . And I do not believe in the increased consumption of CO2 in this way either - x times more CO2 and other gases poisonous to our atmosphere were released during this year's volcanic eruption in Iceland and are still being released, e.g. during forest fires, etc. I doubt we'd have anything to do with it.
  • #33 8896123
    elowel
    Level 1  
    Gentlemen, the voice of "lajkonik" :)
    depending on the installation (concentration of devices) we have at home or in the company, the task of disconnecting the receivers is easy or very easy and I consider it illogical to negate the sense of the above. Even if we only save PLN 100 a year - it's worth taking this cost out of the chimney!
    ...and I'm not talking about these stories of "media ecologists", but about simply poisoning the environment by minerals and "minings" - for several decades of development of nuclear energy, no country/company, in other words NO ONE in real life, has safely disposed of radioactive waste .
    As for the stories about devices demolished by disconnecting from the mains - I remind you that electrical devices have switches as standard ... why? The only equipment that failed me in recent years was a 20-year-old TV set from the Eastern Bloc, and I turn off and on most of the rtv equipment every day. I recommend the devices of the Polish manufacturer on L.
  • #34 8896476
    sebjaw
    Level 11  
    Hello.

    Saved money speaks to me.

    ...and sockets with an Offline switch.

    (they are on A... ...auctions)

    Regards
    S.J
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  • #35 8897700
    LuckyDj
    Level 33  
    The ease of use appeals to me (one switch for the computer, equalizer, amplifier, set-top box and TV) The greenhouse effect, etc. are (unfortunately, or fortunately) in second place ...
  • #36 8898245
    arekb81
    Level 30  
    I turn it off every evening and turn it on when I get home from work. I use a "strip" with a switch. And I only turn off the appliances that are in my room, because I don't like it when some transformer hums or the converter squeaks at night.
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  • #38 8933146
    MiL999
    Level 26  
    I have read and cannot agree with one that the Commodore 64 is a "computer" :) This is a computer with a capital K :)

    And seriously, you're right. The standby of the TV or the watch in the microwave is ok, because it does not consume much, as much as it needs. My blood pours over the TV set-top box. I have an ADB product from Multimedia and it draws 20W continuously, regardless of whether it is on or off. As far as I know it's the same in N. And where is the logic here? Because of such quacks who do such things, I am sometimes in favor of regulating it by law, because because of their laziness and the desire to save on costs, we have to pay for it.
  • #39 8934711
    michcio
    Electrician specialist
    These decoders probably have their HDD turned on all the time, hence the power consumption (and noise!). Couldn't the drive turn on only when needed? Although it's probably because of VOD.
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  • #40 8935741
    sebjaw
    Level 11  
    Hello
    You can read about the savings at www.offline.net.pl in the "About the Product" tab.

    Let's turn off unnecessary devices and "stand by"!

    Regards
  • #41 9434576
    tomybb
    Level 26  
    And I would like to ask about the impact of disconnecting devices from the network on their lifespan - is it better to keep it connected all the time or completely turned off and turned on 3-4 times a week? Disconnecting from the mains is more harmful to devices that have a power supply on the converter, and how about those that have an ordinary transformer - switching on can also have an adverse effect on them?
  • #42 9435888
    lukashb
    Level 39  
    Gentlemen. With decoders, it is so that during STBY only the display is blank and EURO/HDMI/COMPONENT is disconnected. The rest of the electronics must work all the time to be able to update automatically after the supposed sleep. It is and will be, unfortunately, all the time. VOD, by the way, they are on the server and there is only the purchased movie on the disk, here the movies still do not rip to the disk. You just order - through the HFC network you get a movie and watch it for the time you ordered. Uploading such a video over the network is very fast. But the fact is that these set-top boxes are not a successful design (both for one supplier and for the other). Regards
  • #43 9443589
    MiL999
    Level 26  
    That's right, these decoders are sloppy. There are many set-top boxes on the market for PLN 300 - 400, which in standby consume about 1W of energy. You can? You can. And these are decoders that can record to an external drive, which they turn on themselves if necessary.
    And those from Multimedia or N? They are on all the time because it is easier and cheaper, and the customer will pay for electricity anyway. Typical approach.

Topic summary

✨ The discussion revolves around the electricity consumption of devices in standby mode and the implications of daily disconnection from power sources. Users share insights on the potential savings from disconnecting devices like TVs, microwaves, and set-top boxes, with some estimating annual savings of up to PLN 100. While some argue that the savings are minimal and may require device resets, others advocate for using power strips with switches to facilitate easy disconnection. Concerns about the impact of frequent disconnection on device longevity are raised, with opinions varying on whether it harms devices with different power supply types. The conversation also touches on the ecological benefits of reducing standby power consumption and the importance of collective savings at a larger scale.
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FAQ

TL;DR: Switching off standby can cut 30–100 kWh a year (~€5-25) in a typical home; “one case of beer a year or off” [Elektroda, trzy8, post #6923015] You can power devices right after reconnection—no wait time needed [Elektroda, elektor18, post #6922645]

Why it matters: Standby power is paid-for energy that delivers no benefit and slowly shortens component life.

Quick Facts

• EU Ecodesign limit: ≤0.5 W standby for most products (Reg. 1275/2008). • Measured PC + monitor: 0.092 kWh/day = 33.6 kWh/yr [Elektroda, MARCIN.SLASK, post #6923206] • Legacy set-top box draws 20 W 24/7 → 175 kWh/yr [Elektroda, MiL999, post #8933146] • Typical power strip with switch costs €5–10 and handles 10 A (FunCo example) [Elektroda, sebjaw, post #7270440] • Old ATX PSU in standby reached 60 W and failed explosively [Elektroda, zezuama, post #6930611]

How much does standby really cost per year?

Add every watt left on 24 h. 10 W ≈ 88 kWh/yr. At €0.25 /kWh that’s €22. A home with 30–40 W phantom load pays €60–€90 yearly [Elektroda, Romulus7874, post #6926980]

Does repeatedly unplugging harm modern TVs or audio gear?

No evidence shows damage. Failures mostly occur during normal power-on surges, not at mains disconnect [Elektroda, trzy8, post #6923015] Solid-state supplies handle hundreds of cycles designed in IEC testing [IEC 62301].

Why do some new set-top boxes still chew 18–20 W when ‘off’?

They keep CPUs, tuners and HDDs alive for software updates and VOD caching [Elektroda, lukashb, post #9435888] This bypasses the 0.5 W rule because decoders class as networked standby until 2017 amendments.

How can I cut standby without crawling behind furniture?

  1. Plug cluster into a switched power strip.
  2. Mount strip where reachable.
  3. Flip one rocker at night. Smart Wi-Fi plugs (TP-Link Tapo, Shelly) add schedules and kWh logging.

Will a time-switch socket pay for itself?

A €10 timer that kills 15 W nightly saves ~55 kWh/yr ≈ €14, paying back inside one year [calc., EU price avg.].

Can chargers draw power with no phone attached?

Yes. Typical wall-wart idles at 0.1–0.3 W; older models up to 1 W [NRDC, 2019]. Two phone chargers measured 0.003 kWh/day (1.1 kWh/yr) [Elektroda, MARCIN.SLASK, post #6923206]

Will my electromechanical meter even register low loads?

Old inductive meters start spinning around 20 W [Elektroda, michcio, post #6924689] Digital smart meters count from 1 W, so hiding small loads no longer works.

Is dual-tariff (day/night) worth considering instead?

Only if >35 % of use shifts to off-peak. Day rate rises to about €0.12 higher, night halves [Elektroda, Piteros Electricos, post #8697871] For standby cuts, focus on elimination, not timing.

Does unplugging really lower CO₂ emissions?

Each kWh avoided saves ~0.7 kg CO₂ in coal-heavy grids [IEA, 2023]. A city of 1 M households cutting 20 W each would prevent 122,000 t CO₂ annually—equal to 55,000 cars off the road.

What about device lifespan—better always on or off?

Thermal stress when powered 24/7 ages electrolytic capacitors faster. Cycling 3–4 times weekly is gentler than permanent heat exposure [Texas Instruments App Note, 2020].
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