Electrical consumptions when appliances are turnes off?

Question

This question is regarding the appliances certified by ENERGY STAR. Even if they are turned off but they are plugged to the electrical source, do they still continue to use up electricity, if they do is it same compared to when they are turned on and under full use?

Answer 1

"Electrical 101" :-) sorry but I've worked in the transportation industry so lone. When the switch is turned of the ground is broken (opened) and if electricity senses no ground (Complete Circuit) it doesn't go there, over simplified but that's how it works. TVs, Radios and some other appliances have warm-up (stand-by) modes that use a minimal amount of power so when you turn them on they start faster. On some TVs you will see a "Main Power" switch, if you switch this off there will be no power use at all.

Answer 2

Twenty years ago, in most cases, when an appliance was turned off, it drew no power whatsoever. Instant-on TVs with vacuum tubes were drawing power all the time.
Once they started to have electronics, many things draw a little bit when they are off. Anything with a remote needs to run the receiver to tell when you want it to turn on. If there is any kind of a light, it is drawing some power. It is now possible to store data without power, but, not everything does. After a power failure, anything that needs setting draws power. for example, I have to set the time on my Coffey maker. The TV has to search for its channels again. The digital cable box loses its program guide for a while.

Answer 3

No. It is very much less. They usually have some electronics that is related to keeping the equipment ready for a fast turn-on.

For example a stove might have a 10 watt clock as part of its temperature control system so the oven can turn itself on at a specific time. When the oven does come on it could use thousands of watts.

A very common example could be a TV which is "instant on" and has circuitry that stays activated (using a dozen watts or so) to make sure that the TV will respond to the remote control and turn the whole system (hundreds of watts) on when requested.

Answer 4

To get a "good" and correct answer I suggest going to the source:

http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductCategory&pcw_code=HEF

The point made is that
1) some products waste power when they are off. For example a VCR may still display the time when when it is otherwise off. It may also allow a program to run to wake it up and start recording at a pre-programmed time. Homes are full of devices that do these things. Good design can reduce the standby power.
2) some products can be found in models that use less power to do the same job
http://www.energystar.gov/index.cfm?c=refrig.pr_refrigerators

Answer 5

some home equipment don't get became off thoroughly by way of the on/off change. TVs exceedingly. in the olden days you had sound yet no image for the 1st 20 or 30 seconds after the television became became on, it took that long for the image tube to heat up. we now have "on the spot on" TVs that save a small modern-day flowing in the image tube to maintain it heat. My laptop's flat panel video reveal has a sprint yellow gentle on continuously that's plugged in, even while that's off. all varieties of laptop controlled home equipment use some skill while off to maintain the laptop reminiscence from clearing. however the quantity of skill is fairly small. to truly keep electrical energy, get a extra useful refrigerator or air conditioner, or set the thermostat greater in summer season to apply the A/C much less, or maybe do devoid of/C altogether (no longer me inspite of the undeniable fact that, I stay in Texas, besides the undeniable fact that persons lived right here in the previous A/C became invented, we are such wimps). and don't use electric warmers in any respect. warmers, refrigerators and A/Cs use 1000's of cases extra skill than an "off" television ever ought to.

Answer 6

Use a little bite anergy