[SGVHAK] Reminder: SGVHAK meeting this Saturday 8/24

[David Flynn]

Where do you get power for $0.07.KWhr?  I pay more than twice that, three to four times that much at work.

Dave Flynn
Oxford V.U.E., Inc.
office (626) 256-6557
cell (626) 893-6654
dflynn at oxfordvue.com



On Aug 23, 2013, at 2:12 PM, Scoops Adamczyk <scoops at caltech.edu> wrote:

> On Aug 23, 2013, at 12:56 PM, Matthew Campbell <dvdmatt at gmail.com> wrote:
> 
>> For the cost of a good high-quality fan ($7-14) I replace the usually poor one that ships with the computer if I have spent the time to open the case.  The savings in power and noise are bonus on top of the more efficient cooling you get with a better designed unit.
> 
> Is my math correct?
> If the old fan uses ~20 watts and the new uses (possibly) 1/2 the power (10 watts), and at $0.07 / kWh, ummm lets see...
> 10 watts * $7E-5 / hour = $0.0007 / hour savings. Or 10,000 hours of use to pay for the $7 fan.
> 
> .  Scoops