Clean coal + heating stoves
Compared with other clean energy heating methods, the costs of clean coal heating are relatively low and the supply guarantee is relatively stable. Clean coal is easy to burn and is high. calorific value and is sealed. It has a long fire life, resists combustion, saves coal and has low consumption. There is no need to add coal frequently, saves time and effort, is easier to use, and greatly reduces the amount of coal. coal used, and is more economical and energy efficient. Clean coal combustion has low sulfur, low ash, low volatility and more complete combustion, which can effectively reduce emissions of pollutants such as carbon monoxide, sulfur dioxide and nitrogen oxides. . Less smoke and dust are produced after combustionstion, which can effectively reduce air pollution and thus improve the living environment. Coal combustion is mainly discharged directly at low altitudes, and the combustion products are easily inhaled by the human body. The sulfur content of clean coal is less than 0.5%. It burns without black smoke or odor, produces fewer harmful substances and is minimally harmful to the human body. It can effectively reduce the phenomenon of gas poisoning in winter.
Is Huaxia Financial Leasing's photovoltaic reliable?
Distributed photovoltaic power generation can earn profits from the difference in electricity bills.
For example, if you invest in a 5MW photovoltaic power plant on the roof of your own company in Beijing, the construction investment is about 35 million yuan, which can produce 6 million kilowatt hours of electricity each yeare. You sell 50% of the electricity to yourself. For businesses (self-use), electricity is 0.8 yuan per kilowatt hour. The rest of the electricity is sold to the national grid (the remaining electricity is connected to the grid). 0.39 yuan per kilowatt hour. The state will grant you a subsidy of 0.42 per kilowatt hour (20 years). Beijing will give you 0.42 yuan per kilowatt hour. You will subsidize 0.3 (5 years). Then you equal 3 million kilowatt hours of electricity, sold for 5 years for 1.52 yuan, sold for 15 years for 1.22 yuan, and you still have 3 million kilowatt hours of electricity, sold for 5 years for 1.11 yuan, sold for 20 years for 0.81 yuan.
Translation In Mandarin, in the first five years, your annual electricity sales income is 7.89 million yuan/ year, and over the next 15 years, your annual income from electricity sales is 6.09 million. yuan/year.
Of course, you have toAlso consider the 0.05% annual attenuation of the solar panels, the 10-year straight-line depreciation of the equipment, the 3% annual inflation, the income tax from the 10th year, and the replacement of the inverter in about 10 years, various insurance investments, money for window cleaning and halved value added tax and many other factors.
In summary, the IRR of any equity investment in a PV plant mentioned in the example above for 20 years is approximately 16% to 18%.
If you When you rent someone else's roof, you typically have to pay extra fees of around 250,000-500,000 per year for a 5MW roof, so your IRR will likely drop to 14%-15%
Considering some people will I use the EPC price I gave to embarrass my peers, so I reserved some space (there should be some applauses for my peers. At the same time, I also ask owners to note that the scale of the photovoltaic project will directly affect). the cost, i.e. a 500k project and a 5MW project and a 20MW project have completely different costs!
Link: https://www.zhihu.com/question/46411593/answer/101193418
Source: Zhihu
Some details about the actual works of 'operation and maintenance of photovoltaic power plants
1 Skyworth will operate after September 21. 2021 All have been replaced by operating leases and the financial leasing model is closed to date.
The operating lease is fully financed by Party B. The bottom line is that the “chicken” is raised by you and you get a share of the eggs.
Financing is gone, but I still have to say that leasing is like a loan but it's not a loan. In fact, the “hen” is rented to you for 500 yuan per month.No matter how much money the "chicken" earns this month, you will repay 500 yuan every month. The reason this is different from a loan is that in the event of default, this is at most considered a rental dispute, and it is easy to resolve as long as the equipment does not is not damaged. Some buildings nearby block the way, some trees have grown, there is less sun in winter, etc., etc., etc., etc., etc., etc., all this will cause the power plant to not work. be able to generate income. At most it will be deducted from the next period, I don't think that's certain. This is basically not possible without damaging the hardware. The customer may be held liable, but so will the customer's revenue. reduce. Loans are also different. What you get is money, and you have to pay it back regularly, regardless of your situation. Margin financing and loan of titers have average risk and return. The risk is that income can vary from high to low. Typically, they represent around 30-40% of the power plant's total revenue.
Operational leasing means it has nothing to do with you, just let you raise it here, and don't sell the "hen" or anything. If the eggs are laid, we will share the rent even if you pay the rent. Even if the eggs are not laid, we will give you a guaranteed minimum of XX yuan every month. Leasing is low risk and low return. and you usually get 10-16% of the power plant's total revenue.
Author: Muggle Lover
Link: https://www.zhihu.com/question/474693288/answer/2299253456
Source: Zhihu< /p >
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What is the difference between a regular electricity grid and a smart grid?
The operational efficiency and efficiency of photovoltaic power plants will directly affect the operational stability and power generation of photovoltaic power plants. Several key points for everyone in daily maintenance or professional maintenance, simple and practical
1. Cleaning and maintenance of components
Cleaning conditions: The efficiency of the photovoltaic generator is lower than the initial state. (the last cleaning is completed) time) 85% of the output. That is, when the power generation efficiency (reference power generation) is less than 85% of the last operation and maintenance, it will be cleaned.
Cleaning precautions:
(1) For cleaning tools, choose a soft and clean cloth (2) Cleaning fluidage should be similar to the temperature difference of the components; . Don't get too hot. Too bright
(3) Cleaning time: Cleaning with cold water when there is no sunshine or in the morning and evening when the photovoltaic modules are heated by the sun will cause the glass. cover to bursting.
2. Component InspectionMaintenance
If the following problems are found, the photovoltaic modules should be adjusted or replaced immediately:
(1) The photovoltaic modules havebroken glass, bottom burnt basket and obvious problems. color changes;
(2) There are bubbles in the photovoltaic modules which form communication channels with the edge of the module or any circuit;
< p>(3) Photovoltaic moduleThe junction box is deformed, twisted, cracked or burned, and the terminal blocks cannot be connected well.The above presents the common operation and maintenance details of photovoltaic components in power plants. If you want to know more, please go to Zhihu~
Web Link -. How to better maintain photovoltaic power plants?
Imagine that the electrical grid is a person. When an ordinary power grid is damaged (failure), you need to find a doctor (for maintenance), you cannot stand up straight (when the frequency is unstable and the active power is insufficient), and you need to help (sending), and you are not very efficient at work (system stability and power quality are poor); emissions, linked to the energy structure); watching too much Zhihu and still not exercising, physical fitness It is up to people to remind him (manual line inspection) when the equipment is in decline (equipment working status). Is not its very annoying and cute? The Smart Grid is much smarter. Small problems (hidden faults and dangers) can be solved by themselves (network self-healing), and big problems can be isolated by themselves without infecting others (faults can be quickly isolated or even derailed) . and work hard (improve power supply reliability and power quality); have good teeth and a healthy body and eat well (intelligent access to new energy sources) and have less diarrhea (environmental protection); your own fitness and physical condition are clear (two-way flow of SCADA information and electrical energy).