My Plan

[minefarmbuy]

Would you modify a home with one NFW?

[1714694823]

1714694823

[NotFuzzyWarm]

Would you modify a home with one NFW?

You mean mod a standard portable home genset to use NG/Propane? No. Why -- because Generac and others already sell them as permanent units and more to the point of this discussion they are not made to run 24x7x365 which is that the OP intends to do.

I have a 13kW permanent NG-fueled genset at home from GE that automatically kicks in after power is out for 15-seconds. Even so, it is a standby unit and requires filter/oil change after 40 hrs of run time. Brush replacement is supposed to be over 120hrs but again, that is a far cry from units designed for Prime-power operations.

[minefarmbuy]

I meant with the unit you're suggesting they use for this build.

Having a generator would be nice though for blackout.

[NotFuzzyWarm]

Well -- yes. I highly recommend ANY home owner install a permanent backup generator. I did mine around 10 years ago after a massive 2-week long blackout hit lower Michigan/Ohio/Ontario. Last major outage we had was 2 years ago after a huge storm took out a major substation in our area with power out for several days before temporary transformers/switches were installed.

After that one, the electric company did major rebuild of the infra around us and of course now outages are fairly rare but it is still nice to have backup even for the few hours power is out each year.

[Arcane423]

So with all the release of the new 7 nm miners, anyone else think the price of existing miners on the market plummet? Considering buying cheap miners since the power cost is irrelevant and I can ROI faster on a $280 T9+, hoping they may drop even lower. The building preparations have been made and I am in the process of finalizing my generator selection

[Steamtyme]

Had to read back a little.

Honestly right now you can get 741's for like 20 -50$.

Of the ones I've run they tend to average around 7.8 TH/S.

Realistically with shipping going up based on more units you could grab 4-10 of these right now and get hashing away. And be well ahead. Even grab a few extra in case you need parts, I've only had one board fail in the 12 I've run... and I'm pretty sure it was a heat issue .

I'll look again but I believe it was cryptouniverse that had them on extremely cheap. If you want i can also reach out to a Canadian guy i bought a few off a couple months ago, he got burned with a pricey pallet and held on to them to long.

https://www.cryptouniverse.at/shop/avalonminer-741-up-to-8th-s-august/ new
I look some more in a bit and see if I can find the other listings I had noticed

[ZimbaCardi]

Came across this:

https://pangolinminer.com/product/m3x-2ndh/

Not a clue if they're legit but hope the info helps

[HagssFIN]

Came across this:

https://pangolinminer.com/product/m3x-2ndh/

Not a clue if they're legit but hope the info helps

They are legit.

[philipma1957]

I have 3 used avalon 841's up for sale

https://bitcointalk.org/index.php?topic=5049376.0

don't go for the t9's

and other sellers have used s9's

this is a good deal below

https://www.ebay.com/itm/Bitmain-Antminer-S9-13-5-TH-Bitcoin-SHA-256-Miner-Pre-Owned/202450059173?

and he will give you 10% off if you buy 4

so 4 x 300 = 1200 - 120 = 1080  or 270 each

https://www.ebay.com/itm/Pre-Owned-Antminer-S9i-14TH/302918255154?
https://www.ebay.com/itm/Bitmain-Antminer-S9-13-5-Th-Bitcoin-Miner/223162578177?

psus good price
https://www.ebay.com/itm/APW3-Bitmain-Antminer-charger-1600W-ships-immediately/232861029655?
https://www.ebay.com/itm/Original-AntMiner-APW3-PSU-1600W-Power-Supply-for-Antminer-100V-240V-US-Stock/202402569184?
https://www.ebay.com/itm/Bitmain-Power-Supply-Antminer-Bitcoin-APW3-12V/202431849831?

[minefarmbuy]

Since power cost doesn't matter I'd just look at price per unit range you're looking at and efficiencies. I'd have to go back to on the thread but think of you racks how many units per line you can run will help you decide.

If you haven't gotten racks then your fine just figure out your unit model and count.

Also be careful of used units, not that others here are misleading you but a dud on a new venture is a unit that won't ROI.

[Hijack333]

Since power cost doesn't matter...

It always matters. Even if you have free natural gas.
Imagine what it would cost to buy a generator with credit and run it for many years compared to the output.
So my question: Whats your cost for one kwh?
And why do you want to start buying rigs? You also can provide hosting for other people.
People with rigs at home paying 10-20cents could send you the rig and you charge them 5cent.
I thought about such rig hosting service for europe, found some nice regions. Best one was kazachstan around 4cent nett.

[philipma1957]

Hosting could be an option but it has a lot of hidden costs and issues.
For me if I could have a nice generator with free fuel I think I would mine before I host.
Or cut a deal with one guy looking to dump his miners.

Let’s say he gets a good 50kwatt generator. And one guy brings him 30 s9is.

The deal they do is 50-50 on the coins mined.

His cost is the 50kwatt generator. He gets the coins from 15 machines.

The s9i guy gets free power for 30 machines and keeps coins from 15 machines.

This could work for op.

The gear will always earn money.

[Arcane423]

Hosting could be an option but it has a lot of hidden costs and issues.
For me if I could have a nice generator with free fuel I think I would mine before I host.
Or cut a deal with one guy looking to dump his miners.

Let’s say he gets a good 50kwatt generator. And one guy brings him 30 s9is.

The deal they do is 50-50 on the coins mined.

His cost is the 50kwatt generator. He gets the coins from 15 machines.

The s9i guy gets free power for 30 machines and keeps coins from 15 machines.

This could work for op.

The gear will always earn money.

My concern is the risk involved. There is effectively no way to test the health of a natural gas well. The pressure and line size can only give you a rough idea. What if I commit to hosting a bunch of miners and a month or two later the well stops producing? What if a generator fails and leads to downtime? What if a weather or other event causes peoples equipment to get destroyed or stolen? There is a lot of liability and risk involved that I do not feel comfortable with offloading to others, with nothing short of hiring a lawyer to draft a contract.

[Steamtyme]

I previously bought 3 741's from MiningBaby. They showed up new and packaged the same as other 741's I received from distributors. You can check their untrusted feedback in their trust to see details.

There is a lot of liability and risk involved that I do not feel comfortable with offloading to others, with nothing short of hiring a lawyer to draft a contract.

That makes sense. It is also something to consider for your own risk. I'm guessing though that you figure it will last long enough to ROI your Generator and equipment. Who knows in the long run you might find that an acquaintance or family/friend who decide to jump in. Hosting for these people would be a lot less risk as you could talk with them about the risks beforehand.

[minefarmbuy]

My concern is the risk involved. There is effectively no way to test the health of a natural gas well. The pressure and line size can only give you a rough idea. What if I commit to hosting a bunch of miners and a month or two later the well stops producing? What if a generator fails and leads to downtime? What if a weather or other event causes peoples equipment to get destroyed or stolen? There is a lot of liability and risk involved that I do not feel comfortable with offloading to others, with nothing short of hiring a lawyer to draft a contract.

Yea, don't host. It not a venture to start unless you have all the capital for logistic setup and liability.

I forget what you said your budget was or hash target but with free power you could grab any unit and power them up. New, cheap hardware is A951, S9i. The T2T 25T is decently priced as well but double the price. You can still find some cheap 841's floating around.

[VentMine]

Mining on natural gas is nothing new, just look at Upstream Data they do it on oil wells. www.upstreamdata.ca

[Steamtyme]

If you live near woodworking enterprises and have access to sawdust, straw, then you can design a generator not on natural gas but on wood gas https://en.m.wikipedia.org/wiki/Wood_gas_generator it will save your funds and reduce price of one kW of electricity. If you add a solar panel or wind generator, then you get an autonomous source of clean and cheap electricity.

Not sure if you read through completely. The reason they are looking at the Natural Gas Genset is because they have a tapped well on their land and have free access to the fuel.

Mining on natural gas is nothing new, just look at Upstream Data they do it on oil wells. www.upstreamdata.ca

Nice I had heard about some people trying to get projects off the ground, or convince some of the producers to invest in these setups. I didn't realize any had gotten off the ground in Canada.

Do you have any details on sites using this setup?

[mikeywith]

if you have access to free gas , then you might just sell the power to the electric company. I do not know about the law in your country/city. but in many countries if you access to any sort of power generation asset, be it gas, a river, wind etc, you can build a Power station, connect it to the main network. and get paid as you go.

anyway back to the topic !

let me start by telling you that I am afraid your estimated cost is way off !, excuse my poor English, but if the natural gas you talking about is the same one i know then to get a 60 kva you are talking about 20k++.  now that's the average Chinese thing. while looking for a more robust generator like say CAT then you are looking at 2x-3x the price, or at least the same price for a second hand.

another thing to keep in mind is, all these generators are not meant for 24/7/365 ! . even if it's not mentioned on their product manual, trust me. I know this because I worked for years in a remote area where the nearest power supply was 400km far and we had to use our own generated power mostly from Diesel and Gas generators. 

the second ugly truth is, those things need a lot of maintenance, they are not much different from the once that your electricity provider use. theirs are just much bigger and most likely of much better quality, but even those have to undergo scheduled and unscheduled maintenance.

to sum up this whole thing, i would just let you know that is IMPOSSIBLE to generate free or very cheap power in medium scale. you either go small, like using wind turbine or solar power for a few asics or go big ( Millions if not billions) to create your own infrastructure that will provide you with very cheap electricity.