They tell us that the standby mode uses nearly 50% of the full "on" mode. What work is this energy doing, for instance, in a television?
2006-11-17 05:20:11 · 8 answers · asked by Delora Gloria 4 in Environment
because on standby the appliance uses energy to keep it in a state of readiness you can compare it to a military unit on red alert if an attack happens they are not taken by surprise but they are using up more energy by being on alert instead of resting
2006-11-17 05:30:59 · answer #1 · answered by barn owl 5 · 0⤊ 0⤋
Unfortunately, most appliances DO use excessive amounts of power in standby mode, which is due purely and simply to sloppy design in most cases. Take my VCR - I checked it with a plug-in power meter (which plugs into the wall socket, and then you plug the appliance into the power meter). The VCR used 35 watts while playing videos, and still 35watts in standby. Same for my laser printer.
While most appliances do waste lots of power in standby (which is why the European Union is considering bringing in legislation to force manufacturers to do a better job of designing their appliances in this respect), not all are so bad. 'A' rated appliances are the most energy efficient, 'B' less so, and so on.
Think about how many millions of TVs are left in standby in the UK every day. If everybody switched them all off when they weren't using them, you'd save the power output of a couple of power stations. This is how everybody doing their bit for the environment can add up to having a very impact on reducing energy waste. I've never understood why some people seem to think it's a good idea to waste money either, as leaving appliances on standby costs more as it uses more energy...
2006-11-18 23:59:51 · answer #2 · answered by lineartechnics 3 · 0⤊ 0⤋
50%? That sounds like propaganda. Don't believe everything you hear.
On the other hand, if you want to be ecologically responsible, and save money, you will just power down your tv, and computer monitor (those can use quite a lot of power in standby mode, if you have a 21" CRT as I do. It's about the equivalent of 100 Watt light bulb, on, and about 20 Watts on standby. I turn it off.)
Anything that is drawing power from the mains, is 'on', to some degree. That means, it is consuming energy, and emitting heat. If you are likely to turn it back on and off frequently, use the standby mode, because it takes more power to bring most appliances to full-power from cold, than it does to leave them on standby for a while.
Overnight, turn them off.
Which reminds me.... I put the oven on for my tea and forgot! Yikes!
2006-11-18 04:58:29 · answer #3 · answered by protectrikz 3 · 1⤊ 0⤋
It does not! Check the technical data for your domestic appliances and you will be surprised at how low the standby power consumption figures are. As an example, in my own home I get the following figures:- Freeview unit 5 W; VCR 8W; 28 inch (CRT) TV 10W; DVD unit 5 W; 14 inch CRT TV 5 W... and so on.
You can see that they all have very low power consumption when on standby. Even the sum of all the units on standby is less than one medium wattage filament light bulb.
Against the slight annual saving that you gain through switching off all electronic equipment must be set the distinct possiblity that constantly switching on and off (fully) will result in any piece of electronic equipment being severely damaged by so-called surge currents.
You would have a far better effect on over all power consumption if you switched off lights in rooms not being used, fitted low consumption bulbs in all light unts, and lowered your central heating thermostat by a degree or two.
2006-11-17 05:54:47 · answer #4 · answered by avian 5 · 0⤊ 0⤋
Any "Standby" power consumption that is that high is poorly designed. Most are only a few watts, sufficient to activate the electronic on switch. Others use a little more as they power a clock about one watt extra!
Still if everyone did turn off unused phone chargers etc then we could as a nation save a fair Kilowattage.
2006-11-18 09:05:14 · answer #5 · answered by Anonymous · 0⤊ 0⤋
That is nonsense. Standby mode uses very little power, nowhere near 50% of full on power.
2006-11-17 08:49:10 · answer #6 · answered by campbelp2002 7 · 0⤊ 0⤋
It particular does save power. a lot of home equipment and electronics use standby power so they could acquire the flow-forward to instruct on. Microwaves, televisions, computers, etc. pattern standby power quantities * 10.4W - Printer; HP Laser Jet 2200d * 8.2W - Router; Netgear DG834PN * 2.8W - exhibit screen; Dell 1907FPT, Elite team EZX15G * a million.6W - telephone Charger; Samsung telephone charger for D900 * 0.4W - iPod charger contraptions are available to instruct off those home equipment the two with the help of distant, or using a particular power bar. electric fees in my state are using decontrol next year and consumers are warned to anticipate will enhance of over 10%. Now i be conscious of what to do to save some million/2 of that enhance!
2016-12-29 04:07:37 · answer #7 · answered by ? 4 · 0⤊ 0⤋
televsions dont use a lot of energy at all. 50% of a small number is still a small number - beware of percentages of other people. only use your own percentages.
what sounds more 50% or 0.12 kW?
in more detail...
electrical power x unit cost = you bill (+ standing charge)
electrical power = volts x amps (the fuse rating in your tele - probably 1 amp - if its a new tele)
230 x 1 = 230 W = 0.23 kW.
0.23 kW in an hour = 0.23 x cost per unit (about 9p) this equates to about 2 p an hour in full mode... (all this depends on the make and age of you TV) standby 1 p per hour.
standby... still draws the current through the TV, but tere is very little work done in the actual circuits. (the circuits themselves require relative little voltage to overcome the resistance of the circuit borads... tvs never really use that much energy anyway - as the numbers back up).
however - work is still done through LED - not much, but theres a resistance. the problem comes in that we dont really understand just how little energy is require to produe light.
most of the waste energy ends up as heat...red LEDs tend to give out infraread light too - this is heat and this means its not really that efficient for a small device. but it is still alot more efficient than a bulb and will last a lot longer...
why make teh fuss about stand by then... 20million+ TVs at 1p an hour.. 8 hours a night = 20000000 x £0.08 = £1,600,000 per night in waste energy... per 24 hours...
how much coal does that mean?
how much CO2 does that mean?
how much global warming does that mean... and the consequent increase in super-storms and droughts... rising sea levels.
to you... the coast is minimal.. to the country its big for such a small ting.. for then environment its not so much a nail in its coffin.. more a tac...
but its adding up and its still nudging us in the wrong direction.
2006-11-17 05:43:06 · answer #8 · answered by anthony b 1 · 2⤊ 0⤋