[Greenbuilding] Energy Star Clothes Dryers Program Launch
Paul M. Eldridge
paul.eldridge at ns.sympatico.ca
Mon Jul 30 14:59:41 CDT 2012
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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