Mining of photovoltaic solar power
there are a few indivials whose monthly electricity bills are overspending, which can exceed the highest ladder. If the photovoltaic equipment is installed in this case, it can effectively play the role of power saving. In particular, some people use household electricity to make money from mining. If they have photovoltaic equipment, they can rece their mining investment
in addition, if you are the landlord of a farmer's house, there are hundreds of tenants, especially in Shenzhen, if you install photovoltaic equipment on the top floor and then supply power to the whole building. For landlords who rely on electricity price difference to make money, photovoltaic power supply can bring greater profits
in addition, if the photovoltaic power can be sold to the shops at the bottom and charged according to the standard of commercial electricity, you can get more profits. You can make a good profit with such a price difference
in a word, investment in photovoltaic equipment must be made under the condition of high price difference and high unit price of electricity. The same equipment can make profits hundreds of times in foreign countries, mainly because of the high electricity price in foreign countries, the equipment cost can be earned back within a few years, and then the profits can be realized
domestic electricity charges are subsidized. Ordinary residents only have 50 cents per kilowatt hour of electricity. Where it is a little more expensive, it is very difficult to make a profit. In this case, go to find customers with ladder electricity charges of more than 3 yuan and those with commercial electricity charges of more than 5 yuan in shops to give them their stores, so that you can have enough profit to support your equipment investment
of course, it is necessary to consult the relevant departments of electric power whether such electricity sales are legal or not. After all, you are moving the cake of the State Grid by selling your electricity to shops with higher profits
for some small enterprises, the power demand is high, but it does not meet the high standard of large enterprises. If the cost can be reced through photovoltaic equipment, it can be considered to invest in photovoltaic equipment and install it on the roof of the plant. The electricity bill saved is not a small expense.
photovoltaic power generation is essentially the same as hydropower generation
as long as the electricity is cheap
generally speaking, if the electricity charge is more than 30 cents, you can hardly earn money from mining.
make money
in the near future, solar photovoltaic power generation will occupy an important position in the world energy consumption. It will not only replace part of conventional energy, but also become the main body of the world energy supply. It is estimated that by 2030, renewable energy will account for more than 30% of the total energy structure, and solar photovoltaic power generation will account for more than 10% of the world's total power supply
by 2040, renewable energy will account for more than 50% of the total energy consumption, and solar photovoltaic power generation will account for more than 20% of the total electricity consumption; By the end of the 21st century, renewable energy will account for more than 80% of the energy structure, and solar power will account for more than 60%. These figures are enough to show the development prospect of solar photovoltaic instry and its important strategic position in the field of energy
extended information:
related information of solar photovoltaic power generation:
1. The provincial and lower energy authorities implement the record management of distributed photovoltaic power generation projects according to the investment project management regulations of the State Council and the annual guidance scale index of local distributed photovoltaic power generation issued by the energy authorities of the State Council. The specific record keeping measures shall be formulated by the provincial people's government
2. The distributed photovoltaic power generation projects that indivials use their own houses or build in residential areas shall be registered directly by local power grid enterprises and filed with local energy authorities. The projects that do not need the subsidy from the State shall be managed by the provincial energy authorities
3. According to the characteristics of distributed photovoltaic power generation project, the project filing work should simplify the proceres as much as possible, and avoid the supporting documents such as power generation business license, planning and site selection, land pre examination, soil and water conservation, environmental impact assessment, energy conservation assessment and social risk assessment
First of all, we need to know the principle of grid connected photovoltaic power generation system and what equipment needs to be used
I. working principle of photovoltaic power generation system:
high performance solar cell moles are centrally installed on the roof through brackets. After series connection and parallel connection, they form a solar cell array. The solar cell array absorbs sunlight and generates DC power, which is converted into AC power for home use after photovoltaic inverter and uploaded to the grid
2. System composition:
mainly includes: photovoltaic mole, inverter, bracket, DC cable, AC cable, subsidy meter, two-way meter
3. Market price:
the market price of photovoltaic system is generally 8-12 yuan per watt. The cost of installing 5kW solar power generation system in ordinary families is about 40000-60000 yuan
Fourth, the income of household photovoltaic power generation includes three parts:1. Subsidy: the national subsidy is 0.42 yuan / degree + provincial subsidy + city and county subsidy (different places are slightly different), no matter whether they use or sell, as long as the electricity is subsidized
Save electricity: generating electricity for your own use, without paying electricity, is equivalent to making money3. Making money by selling electricity: the electricity that cannot be used up is sold to the state, and the selling price is about 0.56 yuan / kWh according to the benchmark price of local coal-fired desulfurization unit Electricity prices vary slightly from place to place)
5. Investment return calculation taking three types of areas in Shandong Province as an example, a 5kW family power station is installed, and the investment is about 40000 yuan according to the market price. On average, it can generate 20kW / h a day and 7300kw / h a year. According to 30% for self use and 70% sold to the State Grid:subsidy income: 7300 * 0.42 = 3066 yuan (excluding provincial and prefecture level subsidies)
electricity saving income: 7300 * 30% * 0.52 (electricity fee) = 1138.8 yuan
electricity sales income: 7200 * 70% * 0.35 = 1764 yuan
overall, One year's income: 3066 + 1138.8 + 1764 = 5968.8 yuan
the cost can be recovered in almost six years. The average operation time of photovoltaic power station is 25 years, which is equal to the following 19 years. It is a net income
It is planned to install 3.36kw, 280W single crystal with unit price of 8.5 yuan and 12 moles. The total investment (280 * 12 * 8.5) = 28560 yuan
annual income: 3.36kw * 1.1 (light multiple ratio) = 3696 degrees / year
self use: 200 degrees / month plan * 12 months = 2400 degrees / year
saving: 2400 * 0.5 (household electricity price) = 1200 yuan
national subsidy: 3696 degrees * 0.62 = 2291 yuan
surplus power on Grid: 1296 * 0.5 = 648 yuan
Total (saving 1200 yuan + subsidy 2291 yuan + purchase 648 yuan) = 4139 yuan / year
< P >in terms of area, a 40kW system can be installed, but generally only half of the area can be installed
let's assume that half of the area is installed with 20kW, and the cost of such a grid connected system is about 200000 yuan, depending on the brand and quality of accessories, the price will vary
the operation is not very difficult, and generally it doesn't need too much maintenance. The main thing is to see if the equipment is normal, and the other is to clean up the st and debris on the surface of the solar panel (once a few months)
if the investment is made by ordinary households, it will take about 15 years to recover the capital without considering subsidies
if it's instrial and commercial electricity investment, without considering subsidies, it will take about seven years to recover the cost, because the instrial and commercial electricity price is twice as high
at present, there is no specific subsidy policy
First of all, we need to know the principle of grid connected photovoltaic power generation system and what equipment needs to be used
I. working principle of photovoltaic power generation system:
high performance solar cell moles are centrally installed on the roof through brackets. After series connection and parallel connection, they form a solar cell array. The solar cell array absorbs sunlight and generates DC power, which is converted into AC power for home use after photovoltaic inverter and uploaded to the grid
2. System composition :
mainly includes: photovoltaic mole, inverter, bracket, DC cable, AC cable, subsidy meter, two-way meter
3. Market price:
the market price of photovoltaic system is generally 8-12 yuan per watt. The cost of installing 5kW solar power generation system in ordinary families is about 40000-60000 yuan
Fourth, the income of household photovoltaic power generation includes three parts:1. Subsidy: the national subsidy is 0.42 yuan / degree + provincial subsidy + city and county subsidy (different places are slightly different), no matter whether they use or sell, as long as the electricity is subsidized
Save electricity: generating electricity for your own use, without paying electricity, is equivalent to making money3. Making money by selling electricity: the electricity that cannot be used up is sold to the state, and the selling price is about 0.56 yuan / kWh according to the benchmark price of local coal-fired desulfurization unit Electricity prices vary slightly from place to place)