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Topic: Suppose you had 5 MW of energy at your disposal. (Read 1249 times)

full member
Activity: 203
Merit: 100
Puzzled how you get 3400 miners.  

Assuming an 80% average electrical load just for miners you have 4 Megawatts to play with.  This ignores power for fans, cooling etc.

This means your average power consumption per unit is 4000000/3400 = 1176 watts.  But miners such as the S9 draw more than this.

Just how do you get 3,400 miners? 
newbie
Activity: 5
Merit: 0
Interesting exercise.

5 MW would give you about 30-40 Petahash.  This assumes around 0.1 Joule/Gigahash, as for the Bitmain S9.

Capital cost would be about 5 to 10 million USD depending on building availability, miner hardware cost and what electrical infrastructure  (high voltage transformers etc) is needed.   See
https://bitcointalksearch.org/topic/--1512967

If you don't have the capital to purchase your own miners the other approach to earning money is to just build and wire the building, and then host hardware.  But this is labor intensive and requires a support infrastructure.  To keep costs down you would need to limit mining users, say to just those who will pay for at least 50 Killowatts.







Thanks for the great reply. The finance guy finished his work. were looking at approx 3400 miners with 5 MW, however; the cost of cooling needs to be determined. I am in touch with a couple of data center project management - including immersion cooling.
legendary
Activity: 1456
Merit: 1000
Notlist3d,

Im not completely sure I get your math. I did reinvest 50/50 in TH on S7 and S9 a couple of month ago with a powerprice of $ 0,055 and with a forecast saying very small diff increases for at least the next 6 month time. For now the investment calculation looks spot on.
So with a price of 0.10$ with an S7 price of 365,-$, the S7 looks like a pretty decent investment.

The key thing there is "a couple month ago" as this would be before having.  And there is HUGE difference on before and after having as far as mining gear goes.  A S7 pre having yes was good at 10 cent's, but post having it changed to where at 10 I would not buy a S7.  So I'm not sure where you find difference in math on running a s7.

Just look at running cost at current BTC value.   Running 4.73T even if you get " Power Consumption: 1293W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp)" I just don't see as profitable currently.  If BTC takes a huge jump up could that change yes.  But as of right now 10 cent's I think S9 is onlly thing that makes sense again currently.

And again to be clear we are talking about now (current), not a couple month's ago.
legendary
Activity: 938
Merit: 1000
Notlist3d,

Im not completely sure I get your math. I did reinvest 50/50 in TH on S7 and S9 a couple of month ago with a powerprice of $ 0,055 and with a forecast saying very small diff increases for at least the next 6 month time. For now the investment calculation looks spot on.
So with a price of 0.10$ with an S7 price of 365,-$, the S7 looks like a pretty decent investment.
legendary
Activity: 1456
Merit: 1000
S7 will yield some amount of profit provided the electricity cost does not exceed $0.10/Kwh. 5MW of electricity is not enough to give you returns on investment but since it's free, it will definitely put a dent on your electricity costs.

I think your math is wrong I would not touch S7's at .10 cent's per KWH.  At that price your only option is really S9's as far as BTC mining goes.  But op mentions ".0275" so he should be fine that is MUCH cheaper then the .10 cent.

Just make sure to add cooling, setup cost if wiring/pdu/psu's, etc.   There is a lot of initial cost's that you will have to invest your first time.  In the future you can upgrade at a lower cost and use old info structure but that first time is going to cost some money.  But yes if you have 5 MW at your rate mentioned you likely should be mining. Just double check and make sure that includes taxes/fees before buying S7's as you do need cheap electricity or they are not going to work.
Das
sr. member
Activity: 308
Merit: 250
S7 will yield some amount of profit provided the electricity cost does not exceed $0.10/Kwh. 5MW of electricity is not enough to give you returns on investment but since it's free, it will definitely put a dent on your electricity costs.
legendary
Activity: 1624
Merit: 1130
Bitcoin FTW!
Well, you'd need a lot of money to mine, but your location and power cost shouldn't be an issue since cooling is much cheaper in colder areas. You'd need lots of S9's or S7s (with electricity costs this cheap, S7s may be viable for mining), and you'd be able to use lots of them. Other than that, besides capital, you should be pretty well off. Electrical costs are usually not a problem as long as cooling is cheap, and in your case you'll be very competitive in the mining scene with the perfect enviroment.
full member
Activity: 203
Merit: 100
Interesting exercise.

5 MW would give you about 30-40 Petahash.  This assumes around 0.1 Joule/Gigahash, as for the Bitmain S9.

Capital cost would be about 5 to 10 million USD depending on building availability, miner hardware cost and what electrical infrastructure  (high voltage transformers etc) is needed.   See
https://bitcointalksearch.org/topic/--1512967

If you don't have the capital to purchase your own miners the other approach to earning money is to just build and wire the building, and then host hardware.  But this is labor intensive and requires a support infrastructure.  To keep costs down you would need to limit mining users, say to just those who will pay for at least 50 Killowatts.





newbie
Activity: 5
Merit: 0
.0275 per watt and production at approx 95%

building is in northern canada.

I'm working with a finance guy and need to begin working on sales forecast of btc, easier to target just one crypto-currency at this moment.
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'


What are the various ways, other than just mining for profit, does a operation such as this with these resources make money?

Working on a business plan and wondering what I may be missing.

Regards

well  at what price per kwatt?

and what state or what country?

plus what kind of building.

newbie
Activity: 5
Merit: 0


What are the various ways, other than just mining for profit, does a operation such as this with these resources make money?

Working on a business plan and wondering what I may be missing.

Regards
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