A.
How much electricity do they use when plugged in but not in use?

B.
Do the generate any heat when plugged in but not being used?

Thanks in advance for those choosing to offer information.

A quick search says 1-3 watts of consumption on standby mode and while I couldn't find anything on heat generation there will be some with anything plugged in. Probably extremely minor though.

quote:

A.
How much electricity do they use when plugged in but not in use?

My guess would be negligible. I know of no way to determine how much electricity a particular device uses.

quote:

B.
Do the generate any heat when plugged in but not being used?

My 2009-vintage Vizio, when operating, gets barely warm on the top vents, no heat anywhere else. When turned off, the only visible indication is a yellow coloring (instead of white when in operation) on the "VIZIO", so obviously a circuit is operating. I can only take a guess here and say that, again, generated heat would range from undetectable to negligible. It is not "instant-on". When turned on from cold it takes ~10 seconds to start showing a picture.

It does take some energy to spy and listen to you all the time. So there is that.

Not enough to matter and no.

Almost no heat when on, unlike my old 65” plasma that worked as a heater in winter.

I have a plasma 50" (that you can feel the heat coming from when walking by) and a 65" Hisense LED/LCD.

The plasma was pulling 380-410 watts while watching a particular Youtube video from Vice Grip Garage. The same video on the 65" Hisense was pulling (unexpectedly) 280 watts.

Both sets show ZERO watts when powered down. They do both show .09 amps while powered off though. I do know the Hisense tv is not fully "off" as it has a "standby" mode which a lot of TV's utilize. This was measured with a "Kill-A-Watt" meter.

I can't feel heat or warmth on either one while powered off.

quote:

Originally posted by egregore:

quote:

A.
How much electricity do they use when plugged in but not in use?

My guess would be negligible. I know of no way to determine how much electricity a particular device uses.

quote:

B.
Do the generate any heat when plugged in but not being used?

My 2009-vintage Vizio, when operating, gets barely warm on the top vents, no heat anywhere else. When turned off, the only visible indication is a yellow coloring (instead of white when in operation) on the "VIZIO", so obviously a circuit is operating. I can only take a guess here and say that, again, generated heat would range from undetectable to negligible. It is not "instant-on". When turned on from cold it takes ~10 seconds to start showing a picture.

You’ll need to know price of the local Kilowatt per hour. From there…

Volts X Amps = Watts per hour
Watts per hour X 24 = Watts per day
Watts per day / 1,000 = Kilowatt hours per day
Kilowatt hours used per day X price of Kilowatt per hour = cost of electricity

Consider you may use a streaming device with a tv, my Roku stick gets disturbingly warm.

These devices are pretty cheap and make it easy to determine the energy use of pretty much any device that plugs into a standard US wall socket. P4400 Kill-A-Watt

quote:

Originally posted by Ripley:
...Roku stick gets disturbingly warm.

Boy, do they ever.
Our old ROKU sticks got so warm that ROKU offered a 4 inch HDMI extension to help keep the temp at least nominally cooler.

When I replaced them I chose the kind that have a much longer HDMI cable and can be placed in a cooler spot.

My 2 week old TCL has not been turned on today and I can feel no warm spots to the touch. I had an early model plasma that could double as a space heater.

I can not feel heat from two TV's ,
Anywhere near any of the vents on the back,

I will check in to a kill a watt,

Online calculator here:

https://www.slashplan.com/65-i...-cost-and-kwh-usage/

Short answer about $20 per year to run a 65in flat screen TV with 4 hours of daily use.

YMMV

quote:

Originally posted by Ripley:
Consider you may use a streaming device with a tv, my Roku stick gets disturbingly warm.

I had a roku stick and it was apparently a known issue. The fix was the company sent me a longer cord for the roku to get it to a more ventilated space.

The heated Roku kept crapping out.

^^^^
Yep, specifying this is the stick that can be a problem. We have one on a slightly used kitchen tv and I keep it unplugged when not needed. It heats up even when the tv is off.

quote:

Originally posted by DonDraper:
I have a plasma 50" (that you can feel the heat coming from when walking by)

A little known upside to owning a plasma TV:

you can warm up a plate of cookies while watching your movie.

quote:

Originally posted by bendable:
A.
How much electricity do they use when plugged in but not in use?

B.
Do the generate any heat when plugged in but not being used?

Thanks in advance for those choosing to offer information.

FYI, to answer question "B": 1 watt = 3.41 btu's
for ref. a human seated at rest would generate somewhere around 200 btus/hr. ( excluding the laten heat generated - for comparison to a TV )
or
tv = a night light heat output and a human is a 60 watt incandescent

Electronic appliance are required to have an energy usage tag on them. If you are looking to buy a new one it will be listed.

Looking at a 65” Samsung, for example, the average yearly usage is estimated to be $44, but the range is $27 to $110 per year.

If cost is a concern try to find one that is ENERGY STAR rated.

C.
Am wondering if they should be in plugged when not being used for weeks on end ?

Sure, the one in my garage is off almost all summer without issue, if the concern is power consumption when off or longevity of the unit, then get a smart plug from Amazon

You can program the smart plug to go off during the hours you don't use the TV, and you can turn it off manually using the Alexa app, or, the app of whatever brand you choose if you don't want Alexa to see it..

Enbrighten, ETC have their own app

Link