Re: The Gilmartin Waterwheel

On Wed, 18 Jul 2007 11:21:40 +0100, the renowned Eeyore
<rabbitsfriendsandrelations@xxxxxxxxxxx> wrote:



Spehro Pefhany wrote:

the renowned Eeyore wrote:
Spehro Pefhany wrote:

Speaking of the numbers not working:

http://www.bangkokpost.com/gadget/gadget.php?id=131

"A 19-inch flat screen monitor used three hours a day will cost around
15 euros (20 dollars) less per day than a similarly sized cathode ray
tube monitor, assuming a price of 18 cents per kilowatt hour"

15 Euro cents less a day maybe ? Sounds more like it.


Nah, it's more than likely meant to be euros/dollars per *year*.

It would have to save ~300W to be cents per day, and that's not
credible. 100W might be reasonable if you assume a ~150W 21" monitor
would have similar viewing area to a ~50W 19" TFT.

Well, I looked at some figures a while back. My Sony 21" CRT consumes 130W. The
replacement LCD I looked at used 44W. So that's an 86W saving.

How many hours use a day ? For work I suppose that would be 8 hours and if it's
left on over lunch say 9 hours, saving 774Wh. At 18 cents / kWh that's 13.9
cents.

Close enough for rock and roll !

Graham

The article, in the portion I quoted above, states it was based on 3
hours/day.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
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