mining hardware – Higher cost running Antminer S9 w/ APW3++ when running at 220v?

The AntMiner S9i 13.5 TH/sec model requires 101.5 Amps DC. Since power (watts) is equal to voltage multiplied by amps, the total power consumed by the AntMiner is 1218 watts (+/- 10%). Note, this is regardless of whether that’s AC or DC, and regardless of voltage. 1218 watts is 1218 watts, or if you run it for an hour, 1.218 KW/hr. In my case, that works out to about $54.44 USD per month, regardless of voltage.

The APW3++ power supply doesn’t care what A/C voltage you supply it with, in the range of 100 to 240 volts, it simply converts that into the required amps output in DC. If the AntMiner is puling 1218 watts, that will translate (at 93% efficiency) to 11.85 amps at 110 volts, or 5.43 amps at 240 volts. Running two AntMiner S9s on a single 120 volt 15 amp circuit is pushing the boundaries of safe operation. You should ensure you only run a single AntMiner per 110 volt circuit, unless those circuits are fed with 12 gauge or lower wiring, and are rated for at least 20 amps.

Attaching the APW3++ power supplies to 240 volt circuits simply means you are pulling less amps per hour than if it is connected to a 120 volt circuit, and you can connect two, or possibly three, AntMiners to a single 240 volt circuit.

So, to answer your question, no, it’s not more expensive to run at 240 volts than 120 volts. In fact, due to power efficiency, it’s probably very slightly cheaper to run at 240 volts.

Currency Mining – Currency-mining.com

I am not owner of this project! Information has been posted here only for discussion! All HYIP projects are risky games, so don’t invest what you can’t afford to lose.

Description

Currency mining is a platform that makes the processes of mining, trading, and cryptocurrency investment easy for a regular user.

Digital Assets Global Cryptocurrency LTD aims to change the existing mining systems, which bring low profit, are overly complicated and require control, to a more user-friendly service with an intuitive interface. Data center, where you can lease equipment for cloud mining, is already available.

The pool has already been launched and software for managing mining equipment has already been developed. Also the platform allows you to invest in order to trade on a modern cryptocurrency stock exchange with an integrated professional software and invest in the investment fund managed by a robotic system that partly operates according to the self-learning neural network principle. Regular users can get access to all services of the project, and purchase capacities for cloud mining in the data center.

Program Start: 2020-04-30

My deposit: $200

The amount of 200 USD has been withdrawn from your account. Accounts: U3869878->U22454680. Memo: Shopping Cart Payment. . Date: 01:18 25.05.20. Batch: 315933054

Investment Plans

(1) Deposit 10-499 dollars, earn 0.5% daily for 12 months and principal of deposit is returned at the end
(2) Deposit 500-4999 dollars, earn 1.5% daily for 18 months and principal of deposit is returned at the end
(3) Deposit 5000-10000 dollars, earn 2.5% daily for 24 months and principal of deposit is returned at the end

Payment Options: PerfectMoney, Payeer, Bitcoin, Ethereum, YandexMoney, Qiwi and Russian Bank Card

Withdrawal Type: Instant

Referral Commissions: 5%-3%-2%-1%-0.5%

Official website: https://currency-mining.com/ref/hyiper

Currency Mining – currency-mining.com – HYIPs

I am not owner of this project! Information has been posted here only for discussion! All HYIP projects are risky games, so don’t invest what you can’t afford to lose.

Description

Quote

 

Currency mining is a platform that makes the processes of mining, trading, and cryptocurrency investment easy for a regular user.

Digital Assets Global Cryptocurrency LTD aims to change the existing mining systems, which bring low profit, are overly complicated and require control, to a more user-friendly service with an intuitive interface. Data center, where you can lease equipment for cloud mining, is already available.

The pool has already been launched and software for managing mining equipment has already been developed. Also the platform allows you to invest in order to trade on a modern cryptocurrency stock exchange with an integrated professional software and invest in the investment fund managed by a robotic system that partly operates according to the self-learning neural network principle. Regular users can get access to all services of the project, and purchase capacities for cloud mining in the data center.

 

Program Start: 2020-04-30

My deposit: $200

The amount of 200 USD has been withdrawn from your account. Accounts: U3869878->U22454680. Memo: Shopping Cart Payment. . Date: 01:18 25.05.20. Batch: 315933054

Investment Plans

(1) Deposit 10-499 dollars, earn 0.5% daily for 12 months and principal of deposit is returned at the end
(2) Deposit 500-4999 dollars, earn 1.5% daily for 18 months and principal of deposit is returned at the end
(3) Deposit 5000-10000 dollars, earn 2.5% daily for 24 months and principal of deposit is returned at the end

Payment Options: PerfectMoney, Payeer, Bitcoin, Ethereum, YandexMoney, Qiwi and Russian Bank Card

Withdrawal Type: Instant

Referral Commissions: 5%-3%-2%-1%-0.5%

Official website: https://currency-mining.com/ref/hyiper

In the ASIC-age, is it worth starting mining Bitcoin at home?

Generally, it’s not worth your time and effort to mine at home! (Some exceptions may apply.)

Age of ASIC mining

CPU mining has been unprofitable since 2011, GPU mining just slightly later.

Today, ASICs rule mining. The Bitcoin network has more than 1.7 Ehash/s (Oct 2016) now which is 1,700,000,000,000 Mhash/s. Your graphics card will be running full blast to churn out a few hundred Mhash/s, your CPU maybe a few dozen.

With CPU or GPU you will never collect a sufficient balance with a mining pool that you could even get paid out. It’s a waste of time, even if you don’t pay for power.

Mining has gone big scale

Meanwhile, ASIC mining has gone industrial. Corporations are building mining centers in regions with very cheap power, and filling them with millions of USD worth of ASIC miners. Greater mining power in one hand does have some slight advantages which adds to their more efficient processes.

Finally, ASIC miners have been catching up quickly technologywise: Every few months new chips get announced moving the scale down a few more nm. Currently, we are reaching 16nm technology (Oct 2016), which is already pretty close to the general state of the art. The problem with that is that every step of miniaturization comes with a leap in power efficiency, quickly obsoleting older generations of ASICs. Chances are that your investment will outdate before it pays for itself – even when you are just looking at cost of acquisition and have no cost of power.

Mining profits tend to zero

The mining market tends to reach an equilibrium: While it is very profitable to mine, there is room for investments. The additional mining power increases the difficulty for all which in turn reduces the profitability. When the difficulty rises, it drives out the least cost efficient mining operations, in turn increasing the profitability of the remaining miners. If you’re not in a particularly advantageous position, you will be quickly pushed out of the market.

Also see: Why does mining profitability tend towards zero?

If you’re not paying for your power, someone else is

Anyway, if you’re “not paying for your power”, because it’s included in rent (e.g. in a dormitory), you’re either privatizing profits by socializing costs, i.e. stealing from your neighbors, or you’ll be paying for it next year when your landlord increases your rent to cover the higher power bill.

If you produce a power surplus or use the ASIC to replace electric heating, hey, you might be one of that exceptions I mentioned going in.

There might be some altcoins that can still be profitably CPU/GPU mined and traded for Bitcoin thereafter, but I am not sure whether even they are worth it when you factor in your time investment.


If you have understood all of the above, please feel free to check out

bitcoin core – can I have a mining node and only accept a transaction for an ip?

I would like to have mining node to mine bitcoin transactions but I want only do it for a specify ip, can do that ?

or it’s better to have a mining node and join it to a mining pool and and make it mining transactions
for a specify ip, which sends the transactions ?

I don’t want a third party in this case.

thanks a lot .

mining reward – Why miners choose low fee transactions sometimes?

Miners prefer high fee transactions to low fee ones, but the part which I don’t understand is that why miners put a low fee transaction has been waiting for hours in mempool, into their blocks While they can find higher fee transactions in terms of sat/byte in mempool.
Is it some kind of moral thing to help those transactions to get confirmed or what?

bitcoin core – I can have a mining node and only accept a transaction for an ip?

I would like to have mining node to mine bitcoin transactions but I want only do it for a specify ip, can do that ?

or it’s better to have a mining node and join it to a mining pool and and make it only mine block
for a specify ip, which sends the transactions ?

I don’t want a third party in this case.

thanks a lot .