Spondoolies-Tech vs Bitmain for a larger operation?

[CptTripps]

anyway for the best $/Gh/Power consumtion, and since you already have 6 racks, you coul go for the SP35

The PPTH on those is actually pretty high. I already ran the math on the SP35. It's $405 per TH.

this guys have chosen S5:

https://www.youtube.com/watch?v=zLWC_FI3B1g

That's the friend I mentioned in post #1.  

[Xian01]

Me = Mac guy: I have the 6-color apple logo tattooed on my left arm...

[meta] FWIW, Professionally, I've been an exclusive Mac guy since about 2004. Still a hardcore gamer today, so I have a beefy PC rig for play/VR stuff, and the latest Mac Pro and MBP 15's for work.

I appreciate stuff that "just works" which is why I switched from Windows to Mac back then to begin with - had too many problems with PC's crashing doing heavy audio work, switching back and forth between programs... but that's another story...

It's for that same reason that I'm beginning to appreciate SPTech products, and am sad to hear they are leaving the "home-miner" market, but c'est la vie...

[philipma1957]

anyway for the best $/Gh/Power consumtion, and since you already have 6 racks, you coul go for the SP35

but that will be certainly very hard to sell off in 4-6 months.


op mentions low power cost so if he uses :

1600 for the sp20   .61-.65 per watt

 1275 for the s-5    .51 -.55  per watt

he has the 'safe' high numbers to predict earnings.

[CptTripps]

but that will be certainly very hard to sell off in 4-6 months.

That's certainly a serious consideration. Looking at what the older hardware is bringing is part of the equation for me. To do this, I researched what the S3 originally sold for and what they're going for now to get a ballpark. Not a perfect science, but it's a consideration.

Like I said earlier, I ordered 5 of each and will rung them for a week or so to get a sense of which we like better from a management standpoint. There is still a lot to look into before I go ordering 150-300 of these things.

The information you all are providing is helping quite a bit. I really appreciate it!

[philipma1957]

but that will be certainly very hard to sell off in 4-6 months.

That's certainly a serious consideration. Looking at what the older hardware is bringing is part of the equation for me. To do this, I researched what the S3 originally sold for and what they're going for now to get a ballpark. Not a perfect science, but it's a consideration.

Like I said earlier, I ordered 5 of each and will rung them for a week or so to get a sense of which we like better from a management standpoint. There is still a lot to look into before I go ordering 150-300 of these things.

The information you all are providing is helping quite a bit. I really appreciate it!

 I do not have the resource of low power cost to consider it for my setup.

 I actually do like both a lot.

 If I lived alone and power was cheaper in my area I would most likely run a lot of both.

By a lot  my home could run 30 at the max, but I would not mind having 50 sp20's and 20 s-5's  in a nearby warehouse.

 The issue is cost of setup + power is too high in NJ, USA .

   I can't get power less the 9 cents even with commercial rates.  It is sad that if I go to this hosting area in CHINA

https://bitcointalk.org/index.php?topic=934581.0   and get 30 s-5's  from him to be hosted by him I can't match it anywhere near my home.

[CptTripps]

$.09 is about 2X what I'm paying in OH. I feel for you guys.

[philipma1957]

$.09 is about 2X what I'm paying in OH. I feel for you guys.

yeah at $0.045  a kwatt

 I would buy some gear.

[dogie]

$.09 is about 2X what I'm paying in OH. I feel for you guys.

yeah at $0.045  a kwatt

 I would buy some gear.

I'd sell bottled hot water at that price Running the numbers if you could insulate them excellently, its not far off break even to ship pallets of hot water to the UK. So fucked up.

[tntdgcr]

lot of SP20s .... what's large?

[btcshiner]

$.09 is about 2X what I'm paying in OH. I feel for you guys.

yeah at $0.045  a kwatt

 I would buy some gear.

I'd sell bottled hot water at that price Running the numbers if you could insulate them excellently, its not far off break even to ship pallets of hot water to the UK. So fucked up.

Is there a large market in the UK for "hot bottled water"?  In the US we sell room temp or chilled bottled water.

[sidehack]

He's probably looking at the efficiency of an electric water heater vs the cost of shipping that much mass across five time zones/Atlantic ocean. Wherein it'd cost pretty much the same to heat water at $0.45 in Ohio, palletize it and send it the several thousand miles to a British man in need of a shower (or tea?), as it would for said British man to heat the water locally using the same equipment at a much higher power cost.

Which... that's an interesting way of looking at power cost distributions.

[CptTripps]

lot of SP20s .... what's large?

Oh, I don't know...thinking about 120 of them or so?


Looking at the Hashcoins Uranus is interesting...gotta run the numbers on that one too.

[sidehack]

I'd buy it if it were shaped like a donut.

[kendog77]

In my opinion, right now is a terrible time to invest in a lot of new mining hardware. Current generation mining hardware (.5-.6 W/GH) has been available since October, and next generation hardware with twice the efficiency is right around the corner and should be available within the next month or two.

If you buy now, your .5-.6 W/GH farm will be quickly obsolete. Also, given the current price of BTC, best case you're looking at at least 9-12 months to get your money back depending on your overhead costs. If your overhead costs (rent, electricity, utilities, labor, ...) exceed 10 cents / kwh, you have no business running a mining farm.

If you believe in BTC, and since the price is currently low, you could buy some BTC directly and hold it as a hedge against rising prices and use it to buy more efficient gear once it is available.

If the BTC price spikes, your hardware purchase just got less expensive. Hardware manufacturers will charge as much as the market will bear, so a spike in the price of BTC will make all mining hardware more expensive.

If the BTC price tanks further, it makes zero economic sense to invest in mining hardware and you dodged a bullet.

[mavericklm]

I'll wait a bit and buy a used farm and/or mini farms. With the price atm, some will give up and sell low just to get out from mining!

[the joint]

@OP, I chuckled a bit at your enthusiasm, buying five of each to "compare the two." 

Is there any reason you didn't just get two SP20 Nano Farms?

[dogie]

He's probably looking at the efficiency of an electric water heater vs the cost of shipping that much mass across five time zones/Atlantic ocean. Wherein it'd cost pretty much the same to heat water at $0.45 in Ohio, palletize it and send it the several thousand miles to a British man in need of a shower (or tea?), as it would for said British man to heat the water locally using the same equipment at a much higher power cost.

Which... that's an interesting way of looking at power cost distributions.

Yeah that's what I was getting at [but $0.045]. There's probably a lighter/denser way to palletise 'heat' [super heated steam?] but even with water its not far away. Which is so, so, so stupid. For reference most residential power in the UK is about $0.22. If you could find somewhere in the US with high power costs, you'd only have to fill containers with insullated baffling and train it across the country.

[philipma1957]

He's probably looking at the efficiency of an electric water heater vs the cost of shipping that much mass across five time zones/Atlantic ocean. Wherein it'd cost pretty much the same to heat water at $0.45 in Ohio, palletize it and send it the several thousand miles to a British man in need of a shower (or tea?), as it would for said British man to heat the water locally using the same equipment at a much higher power cost.

Which... that's an interesting way of looking at power cost distributions.

Yeah that's what I was getting at [but $0.045]. There's probably a lighter/denser way to palletise 'heat' [super heated steam?] but even with water its not far away. Which is so, so, so stupid. For reference most residential power in the UK is about $0.22. If you could find somewhere in the US with high power costs, you'd only have to fill containers with insullated baffling and train it across the country.

southern California is over 30 cents

Heck My power is 16 cents in the summer. I am in New Jersey   less then 900 miles from op.

[CptTripps]

If your overhead costs (rent, electricity, utilities, labor, ...) exceed 10 cents / kwh, you have no business running a mining farm.

Rent is already covered...and we have plenty of space available for this. I've got plenty of people...utilities are way less than average and this kind of power load is already budgeted.

If you believe in BTC, and since the price is currently low, you could buy some BTC directly and hold it as a hedge against rising prices and use it to buy more efficient gear once it is available.

That's precisely what I did last week. I bought at $217 with the plan to use that for the farm we're looking at building. If we don't buy a thing, I can sell the BTC and make $. If we end up buying gear, we're buying at a better price.

@OP, I chuckled a bit at your enthusiasm, buying five of each to "compare the two."  

Is there any reason you didn't just get two SP20 Nano Farms?

Yeah, I tend to "go big" quickly. I actually ended up buying 1 nano farm. I had it in my head to buy 5...but we bought 3 because the TH/s of the 3-node SP20 was roughly the same as the 5 S5s. So I'll be comparing 3 SP20s to 5 S5s.

I see the thread got moved...hope I didn't do something wrong.

Thanks for the opinions and help guys. It really does help and keep things in perspective for me.

[philipma1957]

It was placed in spec  thread due to guessing which machine is better.

As least that is my guess.