Monitors and power draw

[david at thekramers.net (David Kramer)]

On Thu, 15 Nov 2001, Rob Ransbottom wrote:

> On Wed, 14 Nov 2001, Jerry Feldman wrote:
>
> > Thanks,
> > That was somewhat what I was looking for. I'm surprised that businesses in
> > this economy don't look at the savings in electricity. (Actually, it comes
> > down to capital budgets vs. a savings in the facilities area).
> > "Michael Dinsmore" wrote:
> > > Flat panel monitors use significantly less power than their CRT rivals.
> > > Typically, a 17 inch CRT monitor consumes 80~100 Watts, while a 15 inch flat
> > > panel (similar display area!) consumes only 30~40 Watts. In a large office
> > > with many screens, using flat panels will make a significant saving in
> > > electricity costs.
>
> 100 watts * 8 hrs * 250 days * O.16 $/kwh = 32.00$/year
>
> 15" fp monitor = $400.00
> 17" crt monitor = $160.00
>
> Granting the fp monitor zero power usage this yields
> a break even point about seven years away.
>
> Given this there is no financial need to explore the cost of heating,
> cooling or space except in unusual circumstances.

I agree with your math, except that a very high percentage of people I
know leave their monitors on all night.  While it's not drawing the full
power while sleeping, it may be a factor.

----
DDDD   David Kramer                           http://thekramers.net
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DKK D  "I know, I know. It's a russian thing. When we're about to
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DDDD   our stupidity for future reference"      -Ivanova, Babylon 5