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Author Topic: am i going to go over 30kilowat mining?  (Read 948 times)
zedminer (OP)
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August 20, 2011, 09:03:50 PM
 #1

'Residential Service
This rate schedule applies to all residential electric service used for domestic purposes on the premises of any individual private residence, apartment, or dwelling and measured by a single meter at approximately 110 or 240 volts, 60 cycles. The common areas of residential developments will be considered residential service if the owners of the common area are exclusive users and if the total connected load for the common area does not exceed 30 kW.

Rates   Per Meter Per Month
Customer Charge   $9.80
Energy Charge, per kWh   $0.0681'


this is a quote from my city's website on energy costs.   What kind of set up would i have to have to go over 30kilowat if there are any math people on to help?
rokh
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August 20, 2011, 09:06:44 PM
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You really need to find out how many kW you have to play with, other people are going to be using the grid too. To get you started, a 2x6990 rig should be around 1kW.
zedminer (OP)
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August 20, 2011, 09:27:59 PM
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You really need to find out how many kW you have to play with, other people are going to be using the grid too. To get you started, a 2x6990 rig should be around 1kW.

1kw a month?           their are 12 units in my complex (building b) and dozens of buildings  i dont know how many would be on the same grid.
zedminer (OP)
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August 20, 2011, 09:29:03 PM
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'Residential Service
This rate schedule applies to all residential electric service used for domestic purposes on the premises of any individual private residence, apartment, or dwelling and measured by a single meter at approximately 110 or 240 volts, 60 cycles. The common areas of residential developments will be considered residential service if the owners of the common area are exclusive users and if the total connected load for the common area does not exceed 30 kW.

Rates   Per Meter Per Month
Customer Charge   $9.80
Energy Charge, per kWh   $0.0681'


this is a quote from my city's website on energy costs.   What kind of set up would i have to have to go over 30kilowat if there are any math people on to help?


also if i go over this limit; which is the residential limit i would have to pay a whole lot more as i would be in a different pay schedule.
rokh
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August 20, 2011, 09:31:19 PM
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You really need to find out how many kW you have to play with, other people are going to be using the grid too. To get you started, a 2x6990 rig should be around 1kW.

1kw a month?           their are 12 units in my complex (building b) and dozens of buildings  i dont know how many would be on the same grid.
No, 1kW/hour. But, if that quote is directly from your landlord's website, and since a kilowatt is a constant rate, and if it only says 30kW rather than 30kW/month, you should be fine with one or two 2x6990 rigs.
Bobcat
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August 20, 2011, 11:29:02 PM
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'Residential Service
This rate schedule applies to all residential electric service used for domestic purposes on the premises of any individual private residence, apartment, or dwelling and measured by a single meter at approximately 110 or 240 volts, 60 cycles. The common areas of residential developments will be considered residential service if the owners of the common area are exclusive users and if the total connected load for the common area does not exceed 30 kW.

Rates   Per Meter Per Month
Customer Charge   $9.80
Energy Charge, per kWh   $0.0681'


this is a quote from my city's website on energy costs.   What kind of set up would i have to have to go over 30kilowat if there are any math people on to help?


I lived in Southern California, without the mining system , my whole house average use approx 300-350Kwatts/month that end up ~10 kwatts a day
Since I am running 4x6970 with over clock it went straight up to 1144kwatts that average 34-36 kwatts/day, now remember, there are certain tier zone that you reach will pay extra cent per kwatts, so becareful. Just for the mining system itself, it cost me 200 dollars/month, but at the current BTC price, you have to calculate at what price is the break even if not rest your rig and wait till the btc go up then mine again

Last month my friend running 12 cards and his bill ~900 dollars, but he profit 1300 dollars for that month when the price still up in the 14+ per coin
hmongotaku
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August 21, 2011, 12:40:40 AM
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'Residential Service
This rate schedule applies to all residential electric service used for domestic purposes on the premises of any individual private residence, apartment, or dwelling and measured by a single meter at approximately 110 or 240 volts, 60 cycles. The common areas of residential developments will be considered residential service if the owners of the common area are exclusive users and if the total connected load for the common area does not exceed 30 kW.

Rates   Per Meter Per Month
Customer Charge   $9.80
Energy Charge, per kWh   $0.0681'


this is a quote from my city's website on energy costs.   What kind of set up would i have to have to go over 30kilowat if there are any math people on to help?


you';re doing it all wrong. take 1 computer setup.. say a quad crossfire... and it has a 850 watt psu.. It churns out a nice 1 kilowatt. So using it 1 hour will net u 1kwh.... use it all day and it's 24kwh. Use it for a 30 day month that's 720 kwh. at your price it'll cost u 43.20 uSD i think. For me it's .11 per kwh so it's 79.20 usd. I am assuming u are in USA.

at 30kwh:

30 x 24 [hours a day] x 30 [day average in a month] x [your rate] .0681 =  1296.00 dollars.. nice 30 setups?

Desolator
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August 21, 2011, 07:48:42 AM
 #8

I think they're actually referring to kilowatts, not kilowatts over time.  We have a pretty average sized house with maybe above average gadgetry and it's like 700-800KWh per month (before mining) so everyone would go over 30KWh.

The current from more than 30kw would damage residential grade equipment, which is why they say that.  I heard 3 Nissan Leafs charging at once would overload a residential transformer and that'd be around the same I think.

But don't worry, even REALLY pushing it, that would be 14 individual household circuits, which would be basically every circuit in your entire house and you couldn't use any of your appliances or lights either in that calculation Tongue
Kermee
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August 21, 2011, 08:45:09 AM
Last edit: August 21, 2011, 08:55:43 AM by Kermee
 #9

Found it:

http://www.sgcity.org/utilities/sgrates.php

BTW- Your rates are damn cheap ever after the Customer charge.

their are 12 units in my complex (building b) and dozens of buildings  i dont know how many would be on the same grid.

I think you're making this more complicated than it is.

-- Basically, they're saying if you're drawing more than 30kW on your service, you're no longer classified as residential meaning you're either pulling more than 250A @ 120V, or more than 125A @ 240V, or a combination of both.

-- If you receive an electric bill directly from the PUD which varies in amount between billing periods and shows your kWh consumed and bill rate, then you have your own electric meter from your MDU versus a single meter (shared across all units in which your 'rent' would include a fixed rate for electric).

-- Since there are 12 units in your complex, I'll bet 10 BTC that there's 1200A service which is then fed into 12 smaller 100A load centers per MDU with it's own meter.  That's a 'typical' setup from a PUD for MDU's.

So in other words, if you do the math, you'll technically *NEVER* be able to pull a load over 30kW.

TL;DR version:

What kind of set up would i have to have to go over 30kilowat if there are any math people on to help?

NONE before you'd overload your load center/service feed before you'd be able to pull a load over 30kW.

But as an example, my 4x5830 rigs use about 640W.  I'd have to run 47 rigs, or 188x5830 GPU's (For 60.16 GH/s) to hit a 30kW draw.

Cheers,
Kermee

P.S. More fun math...

60.16 GH/s @ Difficulty factor 1805701 gives you 33.5108862792 BTC per day/1.3962869283 BTC per hour.
33.5108862792 BTC @ BTC/USD of $11.37 is $381 per day or $15.88 an hour.
Your electricity costs (before Customer charge) for 30kW is $2.043 USD/hour or $49.032/day.
Assuming your rigs are paid off, that's $13.84/hour of profit which equates to $332 day or $9,960 month assuming near-0 variance.
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