Topic: My first mining project / mini-farm (Read 2958 times)

The mining farm you created just for bitcoin mining is really awesome. If I have such opportunities, I will definitely create a firm to mine bitcoins like this. Now only I am trying to learn about mining.

The setup you have created for mining is really great. Anyone will love this mining setup of yours. You may think your mining setup is a small mining setup but it is not a small mining setup at all it is enough. There are many who want to do mining like this, they will definitely be inspired by you. Wish you all the best in your mining journey and hope you can manage your mining operations from here.

Well, my energy cost varies and I wouldn't want to put it here. I will say my farms are all on sites that generate electricity, and that is a big factor in the price per kWh that I pay.

As for consumption, at this farm I am running 36 x S21 and T21, which is about 130kW total with the fans. 3.1 MW per day, 94 MW over a 30-day period.

I don't sell Bitcoin unless I have to. I'm running around 200 rigs total, and I happened to get into mining at a very good time (shortly before the last halving, when coins were around $7000). Following the halving, over the course of several months, Bitcoin price exploded to 6x / 7x what it was when I got into it. I took out several large fiat loans to get into mining, but was able to pay them off in under a year (due to the explosion of Bitcoin price). Since then, I only buy new miners with BTC, so I have no outstanding loan payments to make - only the rent (which is peanuts as they are derelict buildings) and energy cost (which is low due to locations). So I sell bitcoin to cover costs, and also when I want something nice for myself But otherwise, my plan is to hold for long-term and watch it grow.

I'm not sure there is any system that could prevent a farm from catching fire, however this is an area I am currently thinking more about. My line of thought so far is that it would be beneficial to have some kind of suppression system that cuts power to the miners and fans via a contactor (e.g. when fire alarm is triggered) - but also Co2 extinguishers with heat activation (I have some in the engine bay of my yacht, they have a glass bulb that breaks at a certain temperature, causing the extinguisher to fully discharge).

I'm interested in the commercial component, if it's not a commercial secret.
What is the total monthly consumption (kW or MW) of your mining rig?
How much does 1 kW of energy cost you? Are you likely to pay industrial/commercial rates?
Do you immediately sell the mined bitcoins to cover current expenses or hold it until it can be sold at a favorable rate?

Have you provided a fire extinguishing (warning) system to prevent the mining farm from catching fire?

oooooooooohhhhhhhhhh, that looks sooo HUGEEEEEEEEEEEEE

This question was asked, and answered earlier in the thread I'd estimate this setup was approx. $8000 for everything except the miners, however I did the electrical work myself so you'd probably need to allow an extra $1500 - $2000 if you needed an electrician.

So, assuming you were making a similar setup today, $100k would get you:

$10,000 - similar setup to mine including labour
$90,000 - lots of options here (depending on your available power and cost):

   * 64 x S19KPro - 120T
   * 27 x S21 - 188T
   * 23 x S21 - 200T
   * 32 x T21 - 190T

You would need a large commercial electricity supply though. I have 200A 3-phase 240V, which was already in the premises before I started mining. If you had to have a big supply like that installed, I imagine it would add several thousand $ to the setup cost

Damn, I am jealous of your set up, I wonder if I can pull something this similar off on my own, I am still rocking Asic miners tilll today, I don't have such an idea to run more than 5 Asic miners but I am looking forward to that day.

I think it will be in 2026, I plan to go big on good numbers of Asic miners at the time I am curious though about how much this must have cost you, apart from the Asics how much have you spent on cooling components alone?

I need this information just to get me prepared, I believe that I will have an extra $100,000 in 2025 to start or risk on a Bitcoin mining farm, I wanted to do this for a long and I dont want to leave this world behind without fulfilling my dream.

To the experts in the house, what can $100,000 do in terms of building a Bitcoin mining farm? Or how can one spend this in a very smart way on Bitcoin mining?

The supply at this address is 240V / 200A 3-Phase. The distribution board in the photos is rated for 250A, however it is fused at 160A at the supply end (due to using a 50mm cable). I have a second (smaller) distribution board in the mining room (not photographed) to spread load.

The 2.5mm cables were ESSENTIAL. I fitted 1.5mm cables first, they overheated (which is why I upgraded to 2.5mm). Bear in mind these were only for my Whatsminers which have only one power input, therefore you are delivering all power for the miner through one cable (vs. 2 x cables with old Antminers). I used 1mm flex cables for my Antminers. The Whatsminers draw up to 3700w each.

You should also consider cable length when calculating appropriate cable size. The longer the cable length, the more voltage-drop - so where 1.5mm cable might be fine for a 3m run, it may not be ok for a 25m run etc.

As for old rigs, they've all been replaced since this post was made (4 years old now)! It's just at the top of the forum because I fixed some missing photo links recently. I'm running S21 / T21 at this farm now.

it will fix itself maybe by April 2 as you will be here for 2 weeks.

keep posting.


takes 30 days according to this.

https://bitcointalksearch.org/topic/m.63880748

Thanks philip, but im still classed as a newbie account. 

I gave you a merit you should not be a newbie any more

It's more affordable than other building materials, but it can also contribute to spreading the fire fast ^{[no matter how flawless our setups appear, we shouldn't rule it out (unfortunately)]}...

• e.g. The wood frame that's supposed to act as a divider between the hot and cold sides with the help of the somewhat combustible insulation board, scares me ^{[especially since it's next to the mining rack]}.

Brilliant - thank you! Photos updated and all working again.

P.s. interested to know why you have "mixed feelings" about wooden structures?

It has or rather had something to do with "Imgur's imposed limits on IPs" and to put a stop to this recurring issue ^{[at the time]}, "theymos decided to also put a limit" on Imgur's embedded images.
^{- It's worth mentioning that you can post direct Imgur links without any issues.}

Alternatively, you can show them the "archived link" instead.

Use another image hosting to reupload/repost them: e.g. TalkImg.com - Image hosting for BitcoinTalk

---

BTW, I quickly went through some of the images and honestly, I have mixed feelings about wooden structures ^{[will take a better look when you reupload them]}.

Could someone advise why my images no longer show in this post? I want to send this to someone I've sold some miners to (to help them build their first hot/cold setup).

The images have not been removed at the source site (imgur).

What do I need to do to fix this so images show again?

49c is very hot.

s9's have after market software. Braiins +

You can clock the s9's down to 1000 watts set the fans to 95%. and still get about 12.4 th from them

https://bitcointalksearch.org/topic/braiins-os-braiins-os-custom-asic-firmware-optimize-performance-efficiency-5036844

do it for the 3 hottest months.

So I think assuming 270cfm would be a safe number. Assuming I have this number, for 50 miners that would be 270 x 50 = 13,500cfm. Assuming every miner burns 1450W, I saw an online calculator to calculate the W to BTU/hr which is 1W=3.412BTU/hr ( I don't know if this is correct.) So 1450W x 50 x 3.412 = 247,370 btu/hr. I don't know if this is correct or not.

But if anybody knows how to calculate to get rid of this heat please help me. In the summer the ambient temperature here reaches upto about 49 degree Celsius sometimes.

Since the dimensions of the fan are identical to 17/19 series, you 'could' assume 250cfm (500 / 2), however it's just a guestimate.

Do you happen to know how much is expelled by the antminer s9?

I'd estimate this cost about £6000 GBP to install and setup (everything apart from the miners). That's around $8000 USD