28T power consumption of T2T miner
1. Machine cost: the cost of purchasing mining machine
2. Power cost: the power cost consumed by machine mining
3. Auxiliary costs: personnel maintenance, network, cable consumables, heat dissipation, etc.
for a simple example, take the mining machine of ant S9, which consumes less power on the market, for example, the calculation power is 13.5T, and the power consumption is 1400W
when the mining machine runs for 24 hours: 1.4kw * 24 = 33.6 degrees
Shenma m3, which consumes more power on the market, has a calculation power of 11.5t, The power consumption is 2150w
under 24-hour operation, the power consumption of a single machine is 2.15kw * 24 = 51.6oc
which is roughly equivalent to the power consumption of energy-saving air conditioning, but the bitcoin miner needs 24-hour uninterrupted operation, the power consumption of a single machine is very large after a year's calculation, and the step price cost of household electricity is too high, When the market is not good, the income may not be enough for the electricity expenditure, so at present, mining will choose to be hosted in the mine, which can get cheap electricity and rece the cost price of mining. The price below 30% is the ideal price, which can keep the price of bitcoin falling to a low level, and there is still some income< According to the current mining difficulty of bitcoin:
BTC revenue per ton: 1th / s * 24h = 0.00007087btc
calculated by the comprehensive 12t machine computing power, the daily output is:
0.00007087t * 12t = 0.00085044btc
then the time required for a single machine to dig a BTC:
1 / 0.00085044 = 1175 days
the time required for ten mining machines to dig a BTC:
1 / 0.0085044 = 117 days
100 days In other words, according to the current difficulty, it takes about three years for a single miner to proce a bitcoin, 3.9 months for ten miners to dig a bitcoin, and 11.7 days for a hundred miners to dig a bitcoin. The cost of a single miner is about 8500, Ten are around 85000, one hundred is 850000, less than one million, and one month's income is more than two bitcoins. According to the current price of bitcoin, the price is about 120000. So, although the income of bitcoin mining is not as good as before, it is still considerable compared with other investment projects
however, these benefits do not include decting the cost of electricity charges and later maintenance of machines, so the premise of mining is to find a mine with low electricity charges. If the quantity is large, we need to find a safe, reliable and stable mine. What's more, we need cheap electricity to lower the cost price.
Taking t2t-30t as an example, the calculation force of t2t-30t is 30t, and the power consumption is 2200W, that is, 2.2kW. The power consumption of a single miner in 24-hour operation is 2.2kW * 24 = 52.8kwh, and the electricity charge is once calculated as 0.56rmb, the daily power consumption cost of a single miner is 52.8kw * 0.56 = 29.57rmb
to "mine" with bitcoin mining machine, if the graphics card is fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. There are many professional mines at home and abroad in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even some people in a residential area in Yunnan carried out crazy mining, which led to a large area trip of the residential area, and the transformer was burned
extended data
mining principle of bitcoin mining machine:
bitcoin mining and node software mainly initiates zero knowledge proof and verification transactions through point-to-point network, digital signature and interactive proof system. Each network node carries out broadcast transactions to the network. After these broadcast transactions are verified by miners (computers on the network), miners can use their own work proof results to express confirmation. The confirmed transactions will be packaged into data blocks, and the data blocks will form a continuous data block chain
every node of bitcoin will collect all the unconfirmed transactions and gather them into a data block. The miner node will add a random adjustment number and calculate the sha256 hash value of the previous data block. The mining node keeps trying again and again until the random adjustment number it finds makes the hash value lower than a specific target
the power consumption of bitcoin mining machines is different according to different machines take Shenma 68T, the fastest mining machine in wet season, as an example. Suppose that the electricity charge is 0.22 per kilowatt hour in half a year in wet season and 0.34 per kilowatt hour in dry season, the wall power consumption of Shenma 68T's second-hand machine is 3264w, and the actual power consumption is 3500W, then the daily power consumption of a Shenma M20S 68T machine is 3.524 = 84 degrees, Annual power consumption 84 * 365 = 30660 degrees
according to the latest mining difficulty, a Shenma 68T machine can dig 0.00064836 BTC a day, and 10 machines can dig 2.366514 coins a year. The mining difficulty of the premise remains unchanged, but according to the current situation, it is assumed that the mining difficulty will increase by 30% from now to next June, and by 2.5% every month. It is estimated that 85% of the original coins should be g, that is, 2.012 coins. Ten machines of Shenma 68T can dig almost 2 coins a year
to sum up, the power consumption of ten Shenma 68T machines in a year is 306600 kwh, which can dig almost two coins
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extended data
the risk of mining machine
1. Hardware expenditure
< P > mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With tens or even hundreds of graphics cards, the hardware price and other costs are very high, There is considerable expenditure in miningin addition to the display card burning machines, some ASIC (application specific integrated circuit) professional mining machines are also put into the battlefield. ASIC is specially designed for hash operation, and the computing power is quite strong. Moreover, because their power consumption is far lower than that of the display card, they are easier to form scale, and the power cost is also lower. It is difficult for single chip display to compete with these mining machines, This kind of machine costs more
2. Currency security
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
3. System risk
system risk is very common in bitcoin, and the most common one is bifurcation. Bifurcation will lead to a drop in currency price and a sharp drop in mining income. However, many cases show that the forking will benefit the miners, and the forked competitive currency also needs the miners' computing power to complete the minting and trading process. In order to win more miners, the competitive currency will provide more block rewards and handling charges to attract miners. Risk makes miners
for example, the power of an ant V9 mining machine 4T is 1.05kW, 20kW can drive 19 mining machines
the power of an ant T9 + miner is 1.45kw, 20kW can take 13
the power of a Shenma mining machine is 2.1kw, 20kW can take 9 sets
according to the different power of mining machines, the number of mining machines that can be carried is also different
the above mining machine power data comes from bitfan website
if you have any other questions, you can consult me, hope you can help, thank you
these are illusory things, so work hard!
the acquisition cost of human resources is the cost in the process of recruiting and recruiting employees. Specifically include the following: (1) recruitment cost, it is to attract and determine the cost of human resources required by the enterprise, including advertising costs inside and outside the enterprise 2) Selection cost is the cost that an enterprise incurs in order to select qualified employees 3) Employment cost refers to the cost incurred by an enterprise in order to obtain the legal right of employment 4) Placement cost refers to various administrative expenses for the employed employees to be assigned to certain posts; The time lost by the employing department for the placement of personnel; The cost of providing equipment for new employees; Expenses for special tools or equipment for special types of work according to personnel allocation; The employment department arranges the personnel service fee, the consultation fee and so on
2. The cost of human resource development
the cost of human resource development is the cost incurred by an enterprise in order to improve the proction and technical capacity of employees and increase the value of human resources. Specifically including the following: (1) the cost of pre employment ecation is the cost of the enterprise to ecate the new employees in the ideological and political, rules and regulations, basic knowledge, basic skills and other basic aspects 2) The cost of on-the-job training is the cost of training the staff to meet the requirements of the post 3) The cost of off-the-job training refers to the cost that the enterprise allows the employees to leave their jobs to receive short-term (within one year) or long-term (more than one year) training according to the needs of proction and work. Its purpose is to cultivate high-level management personnel or specialized technical personnel for the enterprise
3. The use cost of human resources
the use cost of human resources is the cost incurred in the process of using employees. Specifically includes the following: (1) maintenance cost is to ensure that human resources to maintain its labor proction and reproction costs 2) Reward cost is a kind of bonus paid for the excess labor or other special contributions in order to motivate the employees and make human resources play a greater role 3) The cost of adjustment is the cost of adjusting the rhythm of work and life of employees, making them play a greater role in eliminating fatigue, meeting the necessary needs of employees, stabilizing the workforce, and attracting external personnel to work in the enterprise
4. Human resource insurance cost
human resource security cost is the cost that must be paid to protect the right to life of human resources when they lose their use value temporarily or for a long time. Specifically include the following: (1) health accident protection cost is the economic compensation cost that the enterprise should pay for the employees' poor health caused by reasons other than work 2) The cost of labor accident security is the economic compensation that the enterprise should pay to the employees e to instrial accidents 3) The cost of retirement security is the pension and other expenses that the society, enterprises and employees bear to ensure that the retirees have a sense of security and reward their hard work 4) The cost of unemployment insurance is the compensation given by enterprises to the employees who have the ability to work but temporarily lose their jobs e to objective reasons
5. The turnover cost of human resources
the turnover cost of human resources is the cost of employees leaving the enterprise. It includes the following items: (1) the cost of severance compensation is the cost that the enterprise should pay to the employees when the employees are dismissed or resigned automatically 2) The low efficiency cost before leaving is the cost of work or proction low efficiency loss caused by the employee leaving the enterprise 3) The cost of vacancy is the loss cost of the vacancy after the employee leaves the post
after confirming the content of human resource cost items, we should choose a certain measurement basis and method to quantify the human resource cost. According to the different characteristics of human resource cost items, we should add the expenses involved in each item directly or by calculation. It will not be explained in detail here. Human resource cost accounting is divided into account setting, account processing and financial report. In terms of account setting, human resource itself is a special resource, which determines the characteristics of human assets different from other assets, so account setting is different from the account setting of cost items in traditional accounting. It mainly includes the following subjects: human assets, human resources, acquisition cost, human resources development cost, human resources guarantee cost, human assets expense, human assets amortization, human assets loss preparation, human assets profit and loss
labor distribution rate = labor cost / added value of instrial enterprises
personnel cost rate = labor cost / sales income
average labor cost = labor cost / number of employees
labor cost output coefficient = added value / labor cost
labor cost sales income coefficient = sales income / labor cost
labor cost content = labor cost / total cost
labor cost wage content = labor cost Total capital / labor cost
total labor proctivity = added value of instrial enterprises / number of employees