[mythtv-users] Requesting some sample kill a watt meter numbers
ram at bca.com
Fri Jan 28 00:49:32 UTC 2011
Boy, I wish we paid $0.12 per KWH. Here in San Jose the marginal rate
is now about $0.41 per KWH. Last year at this time we were pushing $0.50.
On 01/27/2011 03:55 PM, Rob Smith wrote:
> On Thu, Jan 27, 2011 at 12:38 PM, Mark D. Montgomery II
> <techiem2 at techiem2.net> wrote:
>> As a little update/FYI for others:
>> I just moved the base OS over to an SSD disk today so the big disk could
>> actually go into standby.
>> Now the box idles at 118-120W with MythWeather running.
>> Again, not a huge difference (5-7W), but every little bit helps...
>> Mark II
> Let's calculate the ROI on this.
> Price per KWH. Average US rate is $0.12
> Savings, 7 watts for 24 hours a day, 7 days a week
> This gives us a savings of:
> $0.000840 per hour
> $0.020 per day
> $0.14 per week
> $0.56 per month
> $7.34 per year
> So if you spent $45 on a SSD (The cheapest I could find on newegg,
> http://www.newegg.com/Product/Product.aspx?Item=N82E16820139427 ) it
> will take you 6 years and one and a half months to break even.
> That doesn't include the increase in power usage when the old drive
> is spun up and the SSD is pulling power which I would think reverses
> the savings.
> In short, I don't think this ended up saving you a penny.
> mythtv-users mailing list
> mythtv-users at mythtv.org
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