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Old 11-06-2010, 01:13 PM   #1
Tivoitis
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Join Date: Sep 2005
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Power Usage Specs

The WD20EURS 2TB drive is available at Buy.com for $115 now. It looks like it's the newest generation of AV-GP drives. Looking through the specs, it has the lowest power requirements currently:

WD20EURS: Read/Write @ 4.5W, Idle @ 4.0W
WD20EVDS: Read/Write @ 5.9W, Idle @ 4.9W
WD20EARS: Read/Write @ 6.0W, Idle @ 3.7W
WD20EADS: Read/Write @ 6.0W, Idle @ 3.7W

I added the Idle, but I think Read/Write is the most useful since the Tivo is constantly reading and writing, right? Anyone know how we might be able to translate the numbers into a calculation of the expected power savings over a month or a year? I found an old thread that suggests multiplying the wattage x .72 x your electricity rate, so at $0.18/kWh, I guess the EURS is worth about $0.20/month versus the EARS or EADS?

The Western Digital product page where I found the data is at:
www[dot]wdc[dot]com/en/products/productcatalog.asp?language=en

Click through to the particular model and switch to the "Specifications"
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Old 11-14-2010, 09:35 PM   #2
speed_phreak
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Thanks for the post. I came across this in investigating an upgrade strategy for my yet to be shipped premiere. You saved me some time spent on my own research!
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Old 11-15-2010, 08:52 PM   #3
pdhenry
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Quote:
Originally Posted by davidabraham View Post
thanks to your information that give better knowledge of power usage specs.

thanks
david
spam in 3, 2, 1...
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Old 12-05-2010, 10:59 AM   #4
jterwelp
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Quote:
Originally Posted by Tivoitis View Post
I found an old thread that suggests multiplying the wattage x .72 x your electricity rate, so at $0.18/kWh, I guess the EURS is worth about $0.20/month versus the EARS or EADS?
Is a savings of $0.20/month even worth talking about?
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