Power usage whilst on standby?

Booner! · 22 Jan 2007 at 14:30

I heard that TV's use the same amount of energy and power whilst on standby, but the difference is that it prevents screen burn.

What about LCD monitors. For instance would it save money to turn off 40+ monitors alltogether over night at work? or would it make no difference leaving them on standby?

Gommsta · 22 Jan 2007 at 14:49

Watched a program with David Attenborough the other night.

Apparently in the average home 10% of the power usage is by items on standby! That's a hell of a lot.

So with 40 odd monitors i'd definitely turn them off.

TheVoice · 22 Jan 2007 at 15:38

An LCD monitor on standby will use about3 or 4W. A CRT might use double that.

Don't think the thing about TVs is true. Or at least, not anymore (even with CRTs).

Jonny ///M · 22 Jan 2007 at 15:46

Just checked and my 2007 is 2A and my old 17" crt is 1.5A. Arent TFTs meant to be more efficient?

Booner! · 22 Jan 2007 at 15:56

TheVoice said:
An LCD monitor on standby will use about3 or 4W. A CRT might use double that.

Don't think the thing about TVs is true. Or at least, not anymore (even with CRTs).

what power would it use in regular usage? i need a comparitive value and also how much it costs per hour to have it on standby!

Would be SO much help

Jonny ///M · 22 Jan 2007 at 16:01

Booner! said:
what power would it use in regular usage? i need a comparitive value and also how much it costs per hour to have it on standby!

Would be SO much help

I would also like that info but does anybody know where i can buy one of those plugs that you plug in then plug your appliance in and it tells you the wattage used?

fish99 · 22 Jan 2007 at 16:46

Jonny ///M said:
I would also like that info but does anybody know where i can buy one of those plugs that you plug in then plug your appliance in and it tells you the wattage used?

map lins do one for £14.99.

Jonny ///M · 22 Jan 2007 at 17:39

fish99 said:
map lins do one for £14.99.

Cheers mate will probably get one.

rezza · 22 Jan 2007 at 18:30

Jonny ///M said:
Just checked and my 2007 is 2A and my old 17" crt is 1.5A. Arent TFTs meant to be more efficient?

Guess theres a difference between screens? 17 inch Vs 20.

alle · 22 Jan 2007 at 19:19

Booner! said:
I heard that TV's use the same amount of energy and power whilst on standby, but the difference is that it prevents screen burn.

What about LCD monitors. For instance would it save money to turn off 40+ monitors alltogether over night at work? or would it make no difference leaving them on standby?

...Read somewhere that leaving a monitor on standby for 8 hours used the power equivalent to a printer printing 500 pages.

fish99 · 22 Jan 2007 at 19:37

rezza said:
Guess theres a difference between screens? 17 inch Vs 20.

I agree. It's only fair to compare equal size screens. For instance a typical 19" CRT uses anything from 85-140 W, whereas a 19" LCD (which is an inch bigger than the CRT btw) will typically use 35-50 W. The LCD will also be brighter.

Jonny ///M · 22 Jan 2007 at 22:12

fish99 said:
I agree. It's only fair to compare equal size screens. For instance a typical 19" CRT uses anything from 85-140 W, whereas a 19" LCD (which is an inch bigger than the CRT btw) will typically use 35-50 W. The LCD will also be brighter.

Yeh that seems to be the only thing i can think of.

**** the electricity bill this things beautiful

Booner! · 24 Jan 2007 at 09:06

So i have found that a LG LCD (what we use at work) has a normal 35watt consumption and a 1watt consumption on standby.

This has proved the theory of buring up power whilst idle wrong for now.

Can anyone tell me how i can work out an hourly cost for that 1 watt monitor? like the equation? Is it 1watt per hour? and how much would a watt of power cost me?

(would be so grateful of this!)