[Greenbuilding] Energy Star Clothes Dryers Program Launch

[Paul M. Eldridge]

Hi Clarke,

I suspect this is less of a concern at times of rapidly escalating energy costs and stagnant or even declining wages.

Cheers,
Paul

>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/

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