Bitcoin Forum

So far, the rental places i found all have something like 40 amp maximum load in the room. With 40 amp at 230volts, that means around 9200 watts only, about 6-7 antminer S9s can be used. Not very attractive considering the rental amount.

U guys ask the landlord permission to modify it somehow?

can still be worth it, what is the rental amount? consider that 7 of those thing can do 2.2k+ a month depend on btc value

even if you pay 500 for the rental you should come up with 1700 net or minus consumption

still only month to roi, I would try to gamble with this, seeing how the investment isn't too big

I am pretty sure the return isnt that high for mining BTC. It will take months to recover. Hmmm

Is there a trick to get the electrician to wire the area with more electricity? Does it cost more?

I would not put more than 5 Antminer S9s into a 40 amp  230 v circuit.  Don't forget to derate 80% if you are following NEC; you don't want to trip the breakers, or worse cause an electrical fire if the breakers aren't sized properly.  Hire an electrician to determine if there is more available power, get permits from the city, and also keep in mind the ventilation requirements to keep the equipment from overheating.

Too new for answering this question. I'm actually needing answer to these questions as I might get into mining if I start understanding it.

I haven't knew there is an amp limit. What the difference in having a building with thousands of PC's with way more amps? Probably the noise would be to loud anyway?

Does somehow pulling the electricity out from nearby cost alot. Any rough guidelines?

Is there any rental location in a city where there tends to be more availability of AMP for more use? :s11:
Or some kind of service that caters to these type of electrical needs? Juz look for industrial areas?


Hang around here then buddy.


There is only so much a socket can handle.
The problem is u can have even 5-6 sockets in a room and it could be such that all 5-6 can only handle up to 40ampere max....

The amp limit was simply referencing the available power specific to the OP.  The closer you get to the breaker limit the greater the chance or breaking the circuit or if not properly protected, starting a fire.  Also, you have to make sure the wires are sized properly for the current flowing through the circuit. An S9 pulls nearly 1500 watts, a general use computer pulls an average of 500-750 watts depending on the setup.  You can have a building with thousands of computers or thousands of S9s as long as you have enough power and ventilation for your setup.  On a 40 amp 230 v circuit you can only have 5 S9s or 10-15 computers, assuming they are running 24 hours a day.  I'm not talking about mining rigs, I've haven't built one yet, just talking about general computers.

Yup, be very careful about loading a single circuit with too many rigs, the biggest worry is starting a fire. Most circuits are setup to match the type of wire in the wall so that they will trip before too much current is passing through the wire to heat it up and cause a fire. Just make sure that not only the circuit on the breaker, but the wiring in the wall was setup to code and the landlord didn't just swap out the breaker for a bigger one without putting new wiring to handle the additional current.

It practically never makes sense to rent an apartment, even one with electricity included, solely for the purpose of hosting a few miners. If the primary purpose is to have a place to live and hosting the mining operation is secondary, then it makes sense.

well just go over the calculator, it's actually that high now a bit less because there was a recent dump

but an antminer is doing $350+ per month, you do then an easy math and see that it's true, roi isn't that long, but the diff won't sit there

well for wiring the area for sure it cost you something, but this must be asked to your local electrician

Where are you?  That must be some other country because there is no place here that can control the amps going into your unit and room or whatever.  The worst that I have seen here is a sublet situation where they might kick you out or raise your rent if the end of the month showed a high electric bill, but that is it.

Most of the time you either go big with a larger location that was built to have a lot of electricity or you find ways around it, like asking the landlord to permit having a larger power supply installed, which, when I was going through and trying to get involved in the mining game, was something most landlords were willing to accommodate provided the area was already industrially developed, meaning a warehouse or some similar form of storage location. If ti was a domestic or commercial location then there was zero chance from any of the landlords I asked.

Most places that offer larger supplies are industrial areas, in my area at least, anyways.

This is what id like to say too theres no way that you can able to control the flow of current on a particular place since you do still pay up for the consumption that you would made. It do sounds new to me that theres a limitation on a certain room or place on its electricity unless if the landlord/lady told so that restrictions but talking about current I don't think soo. Theres no limitation and it would be sky is the limit usage. In doing mining this is really a big factor to consider first.

Warehouse space can be fairly cheap if you are willing to shop around.  Plus, in areas zoned as light/medium industrial, commercial power can be on average cheaper than residential.

I'm looking at a place with 1600 sqft w/ 600 amps of service.  Costs less rent than a similarly sized apt.

Sounds good idea. You can also register as company for which government or area manager will provide you electricity transformers which can cut your costs even more. Plans can be made depending upon size of your company. That depends on local authorities though.

If you do electric subscription of course you can increase your electricity requirement. Raising the level on the electric panels you have.
It certainly will happen an increase in price, but it is a very reasonable thing because you will get more results.

oh, and oaz7t, if you cannot answer the question in the thread, then do not speak.  You appear to be putting that in there just to increase your posts count . If you just read, you will get all the information.

As a general rule, you need to be looking at small business locations to get into the > 40KW power available range.

 Many homes have 100 amp 220V service, some newer ones might go to 150 amp, but about the only ones you will find with 200 amp service are
 (1) areas with ELECTRIC heat might get to 200 amp service on NEWER homes
 (2) places where the owner had the place custom-designed with more-than-usual power available
 (3) places where a previous owner had the power upgraded for some reason


 I have never seen an apartment with more than 100 amp service, and only ONE condo complex that had more than 100 amp service to an individual condo (it had electric heat AND attached garages).

 Rents on warehouses tend to be a LOT lower per square foot than for apartments - even "shop" spaces are usually lower on a square-foot basis than an apartment, with occasional exceptions where a shop is in a busy downtown location in a large town or in a high-traffic part of a city.
 Office spaces tend to be pretty close to shop space for rental rate per square-foot but rarely have enough power for mining usage.

 You can't assume that ANY warehouse has a lot of power though - a lot of them were strictly for storage and won't have much.
 You have to CHECK first.

 Warehouse/small industrial type spaces tend to have decent power available (like auto repair shops and light manufacturing spaces).

i m at same spot i have multiple antminers (20+)
if add friend to we need a space some where near queens  new york
for 20 s9

- commercial zones with 3 phase (possible adding more rigs)
- what amp and awg cable  from outside to inside of office or basement etc ? (not sure yet searching)
https://www.amazon.com/gp/product/B01IU9L0XS/ref=ox_sc_act_title_1?smid=A1SJV7Q7GQM4PE&psc=1
this look like good for every 10 antminer s9 ?
is 50 amp on 220v enough for antminer s9  ? (7/24 and let say 1500 watt each )
i want to go 220v because psu for 220v are always cheaper i had bitminer psu but next time i ll look for cheaper options.

50 amp service on 220 v is 11 KW before derating 80% for 24/7 service to 8800 watts - so no, that WON'T handle 10 S9 miners.

 200 amp service after derating would be almost 35 kw, that's what you need for 20 x S9 miners, with space to grow a VERY FEW more depending on the batch of each miner.


 3 phase service IME tends to start at 440 V 400 amps, though I would not be shocked to see a 3-phase 440 V 300 amp service somewhere.