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Grex > Oldcoop > #64: Cyberspace Communications finances for December 2003 | |
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| Author |
Message |
| 13 new of 62 responses total. |
jep
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response 50 of 62:
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Jan 9 05:22 UTC 2004 |
How much would it cost to purchase the equipment needed for Grex to
accurately gauge it's power usage?
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scott
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response 51 of 62:
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Jan 9 12:55 UTC 2004 |
These days the downtown library has a couple power meters which can be checked
out for a few days, I think for free.
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keesan
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response 52 of 62:
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Jan 9 15:07 UTC 2004 |
What is our meter not doing correctly? I think we have it because Detroit
Edison was getting rid of it for some reason. I can ask Jim. Or maybe it
came from the Reuse Center.
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gull
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response 53 of 62:
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Jan 9 18:22 UTC 2004 |
What you want is an AC wattmeter, not an ammeter. The current the
computer is drawing doesn't tell you how much power it's using unless
you know the power factor. I think wattmeters are fairly expensive,
normally -- at least $200. It'd be nice if someone had one Grex could
borrow.
What the power company uses on your house is a watt-hour meter. It
measures power used over time, which if you cancel out the units works
out to a measurement of total energy used.
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jp2
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response 54 of 62:
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Jan 9 18:27 UTC 2004 |
This response has been erased.
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willcome
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response 55 of 62:
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Jan 9 19:39 UTC 2004 |
AHAHA< YEAH< DEWY DECIMAL SYSTEM
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gelinas
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response 56 of 62:
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Jan 10 01:17 UTC 2004 |
There were no power meters at the library today. They don't have "hold"
system, so it's just a matter of being there when some are available.
I stopped by Madison Electric to see about getting a power-meter. The going
price is $500.00 for a permanently mounted meter. He did a back-of-the
envelope calculation to show that the maximum cost for a single 15-amp
outlet is in the neighborhood of $30.00, at two cents per KWh, which he said
was about the highest DTE charged. Did you slip the decimal point, Mark?
(A bit later, I'll find my residential bill, to see what rate I'm paying.)
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gull
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response 57 of 62:
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Jan 10 02:19 UTC 2004 |
(15A*120V*24hours*30days)/1000=1296 kWh
1296kWh*$0.02=$26 plus tax. Makes sense to me.
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gull
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response 58 of 62:
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Jan 10 02:22 UTC 2004 |
Well, the math does. I don't know where he got the idea that DTE
charges a max of 2 cents per kWh, though. I'm paying just over $0.08
per kWh in my apartment.
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aruba
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response 59 of 62:
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Jan 10 03:22 UTC 2004 |
Yeah, the rate for our building is $.097451312 per kWh, if you include the
credit and 6% sales tax. Dunno where he got $.02.
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willcome
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response 60 of 62:
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Jan 10 08:36 UTC 2004 |
Haha! My power's at four Canadian cents per kilowatt hour!
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jp2
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response 61 of 62:
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Jan 10 15:49 UTC 2004 |
This response has been erased.
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jesuit
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response 62 of 62:
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May 17 02:14 UTC 2006 |
TROGG IS DAVID BLAINE
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