Mining of low-voltage residential electricity price
bitcoin mining machine is a kind of computer used to earn bitcoin. This kind of computer generally has professional mining chips and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server
the popular digital currencies in 2013 include bitcoin, Leyte coin, zeta coin, pennies (Internet), invisible gold bar, red coin, pole coin, barbecue coin and prime currency. At present, hundreds of digital currencies are issued all over the world
the price of bitcoin mining machine ranges from two or three hundred yuan to 200000 yuan. From 2011 to 2013, high configuration bitcoin & quot; Mining machine & quot; From 10000 yuan to 300000 yuan, but the performance is much better than before. According to instry insiders, the old machine can only dig 1 bitcoin in 100 days, but now (2013) machine can dig 3.5 bitcoins in 100 days
according to the miner information published by the domestic assembly team, a miner with the lowest configuration at the price of 3000 yuan can be returned in more than 30 days according to the bitcoin mining speed. The machine with mining speed of 10G / s can dig about 0.03 bitcoins 24 hours a day, while the machine with mining speed of 13g / s can dig about 0.035 bitcoins 24 hours a day according to the computing power and difficulty of the whole network in 2013.
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
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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
it must be illegal for civil power to be used in instry,
and do you have a mining license
this is not a joke
Power consumption for lighting, air conditioning, electric heating (excluding infrastructure construction lighting, underground railway lighting, underground air defense lighting and temporary flood control lighting) and power consumption with total capacity of electric equipment less than 3KW, except for residential electricity consumption, commercial electricity consumption, large instrial electricity consumption and workshop lighting
for example:
1. Power consumption of railway, highway, shipping, bridge and other signal lights, as well as facilities such as neon lights, fluorescent lights, municipal street lights, public toilets, government loan repayment road charges, etc
2. The total capacity of less than 3KW printer, medical X-ray machine, shadowless lamp, disinfection, other non instrial power, electric heating, etc
3. Instrial single-phase motor with total capacity less than 1kW, or instrial single-phase electrothermal motor with total capacity less than 2kW and no other instrial power consumption
4. Power consumption for proction lighting in general instrial and non instrial customers, office lighting and factory street lighting in non instrial and instrial customers
5. Lighting power consumption of organs, troops, hospitals, etc
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the general principles of pricing in the world are cost compensation principle, reasonable profit principle and fair burden principle
Cost compensation principle. The principle of cost compensation requires that electricity price can compensate the cost of the whole process of power proct proction, that is, the material and human costs from power generation to power sales. Like the pricing of ordinary commodities, the pricing of electricity price should also be based on the average social labor cost under normal conditionsthe proction cost of power procts is ultimately recovered from the users in the form of electricity charges, and the electricity prices of different types of electricity should match their electricity costs. Therefore, some countries have set a minimum price for power procts to protect the interests of power procers. China mainly through the coal electricity linkage policy to ensure that the cost of power procers get reasonable compensation
2. The principle of reasonable profit. The principle of reasonable profit requires that the electricity price can make the power enterprises obtain a reasonable profit level. Many countries have set a ceiling price for power procts to protect the interests of power consumers. The price of electricity should be able to ensure that the income of power enterprises and their investors reach a reasonable level 3. The principle of fair burden. The principle of fair burden requires that the price of electricity must be fair, and different electricity prices should be set according to different time, place and condition of electricity consumptionThis is the power supply department's definition of the nature of users. Low voltage is generally the normal home of 220 V electricity. Sometimes the 380 is defined as high pressure
the line that directly supplies power to users is called distribution line. If the user's voltage is 380 / 220 V, it is called low-voltage distribution line, which is also called strong current in home decoration (because it is the highest voltage used by the family). Strong current generally refers to the AC voltage above 24 v. For example, the voltage of electric lamp and socket in the family is 110V ~ 220V
According to the requirements of power supply reliability and the loss and impact caused by accidental interruption of power supply, the power load is divided into level 1 load, level 2 load and level 3 load
(1) main load
I load refers to the electrical load that will lead to human death and injury, damage the economy of main equipment and waste main procts, need a long period of time to resume proction, or interrupt the power supply after the occurrence of accidents that cause significant adverse political effects
(2) secondary load refers to the power load that will cause major equipment damage, a large number of procts scrapped, unable to resume proction in a short time, affect the normal work of important units, or cause social security chaos (3) the third level load refers to other electric loads except the first and second level load. The third level load should meet the characteristics of short-term accidental interruption of power supply without serious consequences
protective grounding is a reliable connection between the metal shell and frame of electrical equipment and the earth. If the metal conctor collides with the enclosure e to the insulation damage of the electrical equipment, the grounding resistance of the grounding device is small, which greatly reces the grounding voltage of the enclosure. When the human body contacts with the shell, a parallel branch is formed between the shell and the earth. The smaller the grounding resistance of the equipment, the smaller the current passing through the human body, so as to prevent electric shock
electrical equipment grounding or grounding protection is a safety measure