|06-16-10, 03:27 PM||#1|
Join Date: Dec 2008
Location: Santa Fe, NM
Thanked 12 Times in 11 Posts
Kill your (old) Fridge
Thanks to a $200 state appliance rebate program (and $30 utility rebate) I've upgraded our refrigerator to a 2010 Energy Star model. Thanks to my Kill-A-Watt, I've measured how much electricity we are no longer wasting.
I was able to recycle a 1990's vintage refrigerator we have in a rental property. We swapped a 2002 fridge to the rental and put the new Energy Star fridge in our home. Other than age, each of the three refrigerators was comparable with a top-mounted freezer, 16 to 18 cubic feet and no ice-maker. I tried to keep operating conditions similar for the comparison, although my test favored the oldest fridge as I never opened the door during the test.
Refrigerator Energy Use Comparison
1990 Fridge: 4.62 kW·h / 26.7166 hours = 0.1729 kW·h/hour = 4.15 kW·h/day
= 1514.83 kW·h/year
2002 Fridge: 1.54 kW·h / 40 hours = 0.0385 kW·h/hour = 0.924 kW·h/day
= 337.26 kW·h/year (77.7% less energy use than 1990 fridge)
2010 Energy Star(+) Fridge: 1.36 kW·h / 48 hours = 0.02833 kW·h/hour = 0.68 kW·h/day
= 248.2 kW·h/year (26.4% less energy use than 2002 fridge)
I've written a longer article here: Kill Your (old) Refrigerator | EcoDaddyo.com
- DIY Adventures in Applied Sustainability -
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Last edited by TimJFowler; 12-01-10 at 01:22 PM.. Reason: update link
|efficiency, energy star, refrigerator|