[Greenbuilding] Energy Star Clothes Dryers Program Launch

[Clarke Olsen]

Time again to remember Jevon's Paradox: the more efficiently something is used, the more we will use.

Clarke Olsen
clarkeolsendesign.com
373 route 203
Spencertown, NY 12165 
USA
518-392-4640
colsen at taconic.net




On Jul 30, 2012, at 2:07 PM, Paul M. Eldridge wrote:

> Hi Reuben,
> 
> A few examples come to mind.  The tube wireless set that sat on my
> grandmother's kitchen table would have consumed roughly 50 watts,
> whereas the portable radio on my kitchen counter uses just 1-watt.
> 
> My induction hobs are likely twice as efficient in terms of their heat
> transfer as the coil-type heating elements that would have been used in
> electric cookers back in the '30s or '40s.
> 
> With regards to refrigeration, a 17-cubic foot GE GTH17BBC refrigerator
> has an EnerGuide rating of 300 kWh per annum.  In one of your papers,
> you tell us that the average refrigerator sold in 1941 (with an interior
> volume of 6.3 cubic feet), tested according to today's procedures, would
> consume 350 kWh/year.
> 
> The Philips LED lamps in my kitchen produce more light than the 60-watt
> incandescents used by my grandparents and consume just 9.7-watts.
> 
> Lastly, I don't know the operating efficiency of my grandparent's coal
> burning fireplaces, but I can only assume it was extremely low; my two
> ductless heat pumps have a seasonal operating efficiency of 270 per cent.
> 
> Cheers,
> Paul
> 
>> /  Reuben Deumling <9watts at gmail.com  > writes:
> />/
> />/   The fact is that in the 1930s and 40s many of our (US) household
> />>/  appliances were very efficient: water heaters, refrigerators, kitchen
> />>/  stoves, toilets, etc.
> />>/
> />/
> />/  A lot of appliances are more efficient today.
> />
>> 
>> O.K. I'll bite.
>> Name one or two or three.
> 
> Sent from my BlackBerry® PlayBook™
> www.blackberry.com
> 
> 
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