Comments on: The amount of energy saved by displaying this graph on your screen based on monitor type

By: get a life

get a life — Mon, 06 Jul 2009 19:27:15 +0000

LOL at this thread — who cares!?

By: Christian

Christian — Mon, 01 Jun 2009 03:59:13 +0000

Thank you! I’m really not sure what KW/h would measure; at that point, you’re measuring kJ/s^2, which is ABSOLUTELY USELESS!’

Thank you for your time.

By: Carl

Carl — Wed, 15 Apr 2009 14:27:27 +0000

THE UNITS ARE DAMN WRONG!

Kilowatts = Rate of Energy usage
Kilowatt-hours = Bulk quantity of energy or net energy used in a given event
Kilowatts per hour = nothing important to measure!

By: bleh

bleh — Sat, 30 Aug 2008 01:22:24 +0000

or you could just shut up about it and either a) laugh or b) not laugh.

By: Frollard

Frollard — Fri, 29 Aug 2008 14:38:13 +0000

Agreed, however, there could be an assumption that there is a fixed average amount of time that a lol takes to read.

Also, there is the consideration that it must be relative to something; if in relation to LCD, yes, CRT uses more power. In relation to printing the graph, or perhaps using an OLED screen it would be different.

By: cj

cj — Fri, 29 Aug 2008 11:43:06 +0000

You don’t pay your secretary enough!

By: purdlemeow

purdlemeow — Fri, 29 Aug 2008 10:55:45 +0000

Save electricity, kill trees…. oh well. At least you’ve made the first step along the path of Luddite evolution!

By: Joey Y

Joey Y — Fri, 29 Aug 2008 06:16:44 +0000

Shouldn’t it depend on how long you have the graph up? Since the author decided to rate it in kWh, instead of just kW, then there must be an assumption of how much time is involved.

If I have the graph displayed for 5 seconds, then I am using fewer kWh than if I have the graph displayed for 5 hours. But, if the measurement were only kW, the time viewed would not matter. One could make a direct statement about CRTs using less power when displaying black things than white things.

By: Bloobeard

Bloobeard — Fri, 29 Aug 2008 06:13:50 +0000

I usually just have my secretary print out all of the screens that I am looking at so that I can turn them off and read it from the paper. As well as saving electricity it makes email much more convenient because I can annotate straight on to the stuff that people send me and then get the secretary to send it back.

By: ethana2

ethana2 — Fri, 29 Aug 2008 06:02:08 +0000

This is why I believe operating systems should determine their theme settings by screen type. I use a dark theme on my CRT’s and a light theme on my LCD’s, so I can turn the backlight down. When I have an OLED screen, I’ll be using a dark theme on those as well.

After a while, it ads up. That graph just happens to have very little area and is displayed over a very short amount of time by very few people.

By: James

James — Fri, 29 Aug 2008 04:04:18 +0000

Just one if it’s the one they’re using to type up the “global warming is a myth” disinformation campaign.

By: Tom Trifik

Tom Trifik — Fri, 29 Aug 2008 02:58:03 +0000

OK, how many CRT monitors would I have to run at full brightness 24 hrs a day to melt the ice caps and finally finish off this “Global Warming” thing and have people get on with life instead of all this gloom and doom crap?

By: E. Tufte

E. Tufte — Fri, 29 Aug 2008 02:22:23 +0000

You might save more energy on a CRT with black on white, compared to the original amount of power, but, the starting power level is a lot lower on a typical LCD.

By: Jimmy Kariznov

Jimmy Kariznov — Fri, 29 Aug 2008 00:58:26 +0000

In that case, the y-axis should be labeled rate of power loss of monitor, not energy saved.

By: Bloobeard

Bloobeard — Thu, 28 Aug 2008 23:34:35 +0000

Phew!

By: Bloobeard

Bloobeard — Thu, 28 Aug 2008 23:33:36 +0000

*woot* two in a row

By: zBjoern

zBjoern — Thu, 28 Aug 2008 23:16:48 +0000

power [W] is already energy over time

but it is still correct, since this graph causes a crt-momitor to gradually decrease its power

By: Ben

Ben — Thu, 28 Aug 2008 21:05:49 +0000

Right, and you can view that image over a period of time.
I think the graph is correct.
You save X KilloWatts per Hour you leave it up.
Just by viewing it you don’t save X KilloWatt Hours just by viewing it.

By: Jimmy Kariznov

Jimmy Kariznov — Thu, 28 Aug 2008 20:36:52 +0000

This graph fails at using correct units. Energy should be measured in kW*h not kW/h. A kW is a measure of power (energy per time) so kW*h would be a unit of energy. On the other hand, kW/h is a measure or the rate of change of power over time.

By: SEN5241

SEN5241 — Thu, 28 Aug 2008 20:20:40 +0000

I don’t think there are enough zeros after the decimal point.

By: Rachel of Cyberia

Rachel of Cyberia — Thu, 28 Aug 2008 20:12:22 +0000

penultimate!

By: angrycat

angrycat — Thu, 28 Aug 2008 20:08:21 +0000

LAST!