Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 369. (Read 1260290 times)

Well, I ordered myself an SP20.  I've never had an issue with ROI in the past so happy to cough up some coin for an efficient miner.

.... So you're saying you're moving the fluid from rack to roof, cooling it to ambient and back to rack for less than 3KW per rack?

This is correct, we use an oil based dielectric coolant, which is much more cost effective than a two phase cooling approach. Two phase cooling fluids typically cost about $200 per gallon, while oil based liquid coolants are orders of magnitude cheaper. We can handle rack densities of over 100 KW per rack, with a cooling overhead energy use of about 3%. We can achieve this in any climate on the globe. If you can find me flat level ground, Available Power, communications and a roof, I can build you one of the most efficient, cost effective data centers on the planet.  Please see below a link to a youtube video of what our cooling units typically look like in action.

https://www.youtube.com/watch?v=6IX9U2zaI_I



I would be happy to answer any questions.

Cheers,
Brandon

For anyone that doesn´t know:

As far as I can tell, grcooling is a form of immersion cooling, utilizing a "standard" 1-phase cooling liquid.

Send them an e-mail at sales@

Cause experienced miners usually have a small hoard of bitcoin they made from mining and if they have paid for all their hardware already they'll essentially be purchasing gear for free.

I already cashed out the money I spent on bitcoin hardware. Everything I have left (minus small costs) is basically "free" money in my eyes. More or less an opinion really.

Newbie bitcoiner's most likely won't have bitcoins. I hope I explained that correctly.

Huh ? Why would an experienced miner overpay when a newbie wouldn't ?

Nothing is really priced anymore for the bitcoin starter, only the guy who already has hashing power and wants to add some more to what he has.

Answer the question.

Does the Antiminer S3's ROI after you include the purchase of the PSU's?

Where are your numbers on efficiency Th/s to Th/s?

5.5 Th/s (SP31) how many Ant S3s is that?
6.0 Th/s (SP35) how many Ant S3s is that?

Ok... so let us see your comparisons. No need to post lines and lines of text just the numbers thanks.

I want to see how Antiminer's ROI.

If you want to compare them with the SP20's then 1.7 TH/s ± 10% @ $1,190.00 + PSU. 1100 W With a 0.9 Efficiency PSU.

I just want to see how the S3's are ROI at current BTC prices. Seems like you are trying to sell S3s as ROI.

Looks like everything including hashing from the cloud is non ROI currently. Show me where you can find ROI please.

SP20: 1.7 TH/s, 2.5 BTC, ships late Oct, shipping cost not included.
S3: 1.8 TH/s (4x450), 2.3 BTC, ships late Sep, world-wide shipping cost included.

The S3 will mine nearly 1 BTC before the SP20 even ships. That puts the net price like this:

SP20: 2.5 BTC+shipping
S3: 1.3 BTC

The SP20 is twice as expensive!

argh i had it all figured with your above link...dumped my last post...anyway

...with my 15c/kwh and what it took off my $125 gas bill in the winter....it came out to a 35% cut off my equiv costs on the electric bill ...so
it would mean I could run a miner in the winter and get 35% off elec costs to run it

again from what I figured from the savings in gas to heat house (saved 9 days in heat) and converted to elec savings equiv to get the elec cost
of the miner down (not paying those $$$ to the gas company)

..in the heat (it is in the basement so not exactly where I can use it..but hey
denial ..I'll take what I can get)...so the price w/the heat credit to run a 1000 watt say sp20


https://tradeblock.com/mining/

using the above

at say $0.7/gh in cost lets say the spondoolies sp20 is $1190  (w/o power supply) kwh for me is 15c/kwh and the elec costs (minus the HEAT applied)

runs the numbers

remember 35% less on watts in above calculator at 15c/kwh to get the supposed savings on HEAT

20% ave growth till around the middle of NOV when you probably would get the beastie....and I get a $367 usd loss (at current exchange rate of around $475)

if I just go by how much BTC I could make off the unit w/o expenses for 6 months looking at 2.59 btc so..if BTC went back to 500 usd in 6 months I'd MAYBE
break even...take the equip cost off and the elec no way

and this is with my HEAT THE BASEMENT $$$ savings

sigh

If I BUY BTC now at 475 usd and the unit costs me my guess above of $1190 usd....that would be 2.5btc w/o the equip loss above and elec of $367 or .77btc
2.59btc -0.77btc with equip elec costs above again with my HEAT savings on winter home heat that is 1.82 btc vs again the 2.5btc I could just buy now

math is cruel

anyway I probably mucked up the above and all of the above is me being obviously very very bored...but at EVEN  a 1000 usd price...you would still be down
around $308 usd loss on such a sp20 unit

anyway ugly ugly ....anyway those with better math fix/trash the above or whatever...but with my 'very blatant' guesses the ballpark figures as it were...
all to make a very nice cozy basement heated up (likely only the basement..mot like I can move the air..boiler heat) so the real savings above are also suspect..

but then again if I do get the miner I can strike back at the evil centralization of BFL/KNC and others ...strike my puny blow for decentralization!

yeah er sheesh

Searing

If you decide on spending so much, I really don´t see the point why noise would be an issue.

Your home cannot support ~75kW of constant power draw, never mind the heat.

Removing that will take atleast one 7500cfm industrial fan (which is probably louder than the miners, just saying).

Works for me.

hm, actually decide to look into Spondoolies and their site is down... 

SP Tech has come through for me again  :

I got my coupon and discount

What is the DB of the SP20?

Our estimation is less than 60db