[LINK] How many Newspapers does it take to build Ayers Rock?

Marghanita da Cruz marghanita at ramin.com.au
Thu May 14 12:34:52 AEST 2009

David Lochrin wrote:
> On Wednesday 13 May 2009 13:44, Glen Turner wrote:
>> Electricity-wise you're saving what [with an X-terminal] over a 
>> typical  corporate client PC?  Certainly the loss of a hard disk. 
>> Maybe the move from a Pentium to a Atom class of CPU.  But 
>> exactly those savings would be made by using a Atom-class 
>> desktop with flash disk.
> I was writing specifically about electrical power requirements.  But there's no reason why an X-terminal can't use a fanless low-end Intel processor with no hard drive and embedded Linux if that's a better cost option.
> I don't have time to comprehensively research the energy savings, but here's one comparison I just happen to know about.  My HP d530 "small form factor" desktop requires 185 watts according to the Technical Reference, whereas the NCD 900-series thin client requires only 26 watts (both figures do not include the monitor).  These days a diskless Linux-based thin client would probably be a better way to go.
> And you'd have to factor in the energy saved with lower (much lower!) support requirements.

An interesting test is the electricity consumption of the powerpack without a 
computer connected. I got a bit of a surprise:
> The flip side of reducing e-waste is that there have been improvements in energy efficiency. In the case of the Versa 2200c - the power adapter alone, without connecting it to the notebook drew 7Watts of power. In comparison the power adapter for the 1997 NEC Versa 4230, without an indicator light, and a 2004 Targa, without with an indicator light in the adapter, disconnected from the laptop, drew less than 1 Watt (didn't register on the power meter which has a 1Watt threshold).

The no-brainer about smaller equipment can be demonstrated in refridgerators, 
washing machines, dishwasher...Note, in my view, this is a shortcoming of the 
energy efficiency rating system and obviously affect energy costs.

> Brand	Model	Volume	Electricity Use	CO2(7)
> LIEBHERR 	KP4260 	405 litres 	200 kWh/year 	192,000 g/year
> GRAM 	M56 GRAM KS220 	205 litres 	217 kWh/year 	208,320 g/year
> GRAM 	M60 GRAM KS290 	286 litres 	243 kWh/year 	233,280 g/year
> GRAM 	M60 GRAM KS360 	354 litres 	257 kWh/year 	246,720
> MIELE 	K8952SD 	413 litres 	272 kWh/year 	261,120 g/year
> FISHER & PAYKEL 	E373 	373 litres 	296 kWh/year 	284,160 g/year
> WESTINGHOUSE 	Side by Side RS645 	643 litres 	830 kWh/year


Marghanita da Cruz
Phone: (+61)0414 869202

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