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At present, there is no such product or complete set of technology, but the traditional house is equipped with additional panels or thin films to generate electricity. The roof of the farmhouse is now flat-topped cement concrete, or any cement board is built, and slag is poured on top of it, and waterproofing membrane is paved for waterproofing. There is almost no glass roof.
Individual greenhouses are glass houses, and there are too few of them.
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At present, household rooftop solar power generation is leak-proof and insulated. Insulation can be done very well, just the cost of the problem, how much to make the countryside accept, there is no specific concept, people and people's concepts are not the same, for example, you think 5,000 less, there are more than 5,000 people, the family power station can be connected to the grid to sell electricity from last year, so at present, in addition to the high cost, other aspects have been done very well.
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At the exhibition, I have seen the U-shaped glass photovoltaic modules launched by Quanzhou Juyang Electronic Technology, which are formed into U-shaped glass profiles by continuous calendering method, and then composite with monocrystalline silicon photovoltaic panels. Compared with the original aluminum edge banding, the traditional photovoltaic panel has high strength (can stand directly on the photovoltaic panel), permanent waterproof (the same as the roof of the glass sunshine house), and I heard that the cost is also similar to that of the glass sunshine room.
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Rooftop photovoltaics can do some of the things you want, but they need to be designed.
In addition, in terms of cost, there is no way to popularize it at present.
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Now there are many ways to insulate the roof, you can choose to lay a 10 cm thick pearl sand insulation layer on the roof of the thief, and then make a layer of cement prefabricated insulation board; If it is a reinforced concrete cast-in-situ roof, a 20 cm thick soil layer can be stored on it, and it can also be used for greening and planting flowers and plants, which not only plays a role in thermal insulation, but also beautifies the environment.
The roof insulation method can also be a roof leak-proof insulation method, which is to cover the entire roof with FRP plates and bond the FRP plates as a whole. Compared with the current technology, it has the advantages of easy construction, high material strength, light weight, long service life, and good leakage and heat insulation.
If the users on the top floor adopt the method of laying ceramsite concrete insulation, it has a good inhibitory effect on the indoor temperature, which can not only have a comfortable summer, but also effectively save electricity consumption and reduce electricity expenses. In addition to the roof insulation layer, ceramsite concrete also plays a good role in moisture-proof and waterproof effect with effective heat insulation, and has been widely used as a bathroom backfill and roof insulation layer application.
We can also use air circulation insulation. You can build a hollow mezzanine of about 30 cm on the roof, when the sun is exposed to the sun in summer, because the air below is flowing, it can effectively isolate the heat transfer effect, if there are conditions, we can make a shallow puddle of about 15 cm on the roof, using this method, we can also effectively insulate water. Nowadays, many people use this method of insulation, but the requirements for the roof are also relatively high.
We can also use foam material to make thermal insulation wall, this practice is simple and economical, but the difficulty of construction on the roof is larger, between the existing concrete wall and gypsum board plus thermal insulation material, the thermal insulation performance and air conditioning effect of the living room are well improved, you can also lay a layer of white light paper with smooth surface on the roof, use tin foil as the material, it is not easy to get oily, and it can also be strongly reflective and insulated. Master the roof insulation method and you will no longer be afraid of the summer heat.
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Set up a canopy on the roof, the roof can fully shade the strong sunlight and achieve the effect of heat insulation, the effect of this way is still good, but it will shade the light.
You can also plant vegetables and fruits on the roof of the building, you can directly spread the soil layer to plant, plant some climbing vines or vegetables, which can play a role in heat insulation, and at the same time you can eat fresh vegetables, the best of both worlds.
Another method is to do waterproofing on the roof, and then inject water with a height of about 20 cm, the specific heat capacity of the water is large, the heat absorption capacity is strong, and it can effectively insulate heat.
You can also lay an insulating layer on the roof of the building, which can effectively prevent the exposure of the sun in summer, lay insulating bricks, brush insulating paint, and paste reflective materials tin foil.
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In fact, it depends on the installation method of the installation company's straight frame.
There is a way not to destroy the tile structure.
The average company will only remove the tile and go directly to the straight frame.
If you don't do it well, it will leak.。。。
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My house has a tile roof, which is installed by Shanghai Waterfall Energy.
Target. When installing, some tiles were lifted, hooks were installed under the tiles, and then the brackets were fixed and the panels were installed, and the roof was not damaged, and the tiles were not broken. My friend's house has also installed a solar power system, and his house has a concrete flat roof, and the brackets are fixed to the poured cement piers, so the roof will not be damaged.
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There is no effect, not only does it not have an effect, but it can also play a role in heat insulation in summer.
1. The main principle of photovoltaic power generation is the photoelectric effect of semiconductors. When a photon irradiates a metal, its energy can be absorbed by an electron in the metal, and the energy absorbed by the electron is large enough to overcome the internal gravity of the metal to do work, escape from the metal surface, and become photoelectrons. A silicon atom has 4 outer electrons, and if an atom with 5 outer electrons such as a phosphorus atom is doped into pure silicon, it becomes an n-type semiconductor; If an atom with three outer electrons such as boron atoms is doped into pure silicon, a p-type semiconductor is formed.
When p-type and n-type are combined, a potential difference is formed at the contact surface, which becomes a solar cell. When sunlight hits the p n junction, the holes move from the p pole region to the n pole region, and the electrons move from the n pole region to the p pole region, forming an electric current.
2. No matter from the perspective of the world or China, conventional energy is very limited. China's primary energy reserves are far below the world average, only about 10% of the world's total reserves. Solar energy is an inexhaustible renewable energy source for human beings, which has the advantages of full cleanliness, absolute safety, relative extensiveness, long life and maintenance-free, resource adequacy and potential economy, and has an important position in the long-term energy strategy.
3. The production of solar panels has the characteristics of high pollution and high energy consumption, under the existing conditions, the production of domestic solar panels for their own use is still said in the past, but a large number of exports are equal to polluting China, benefiting the world, according to statistics, the production of a 1m solar panel must burn more than 40 kg of coal, but even China's most inefficient thermal power plant can use these coal to produce 130 kilowatt-hours of electricity (generally a solar panel generates more than 250 kilowatt-hours a year) - That's enough watts of light-emitting diode (LED) bulbs to emit light for 30 years based on a 12-hour day.
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There is no impact, at present, the battery module is on the roof and is completely supported by the bracket at a 35-degree slope, which not only does not affect it, but also plays a role in heat insulation in summer.
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1 Pros:
1) It is usually easy to receive solar energy resources.
2) Installing a photovoltaic array on the roof allows you to use the space that would otherwise be useless and save space in the yard.
3) It is close to the existing power system, which helps to reduce the overall cost of construction.
4) Roof-mounted installations have less impact on the site.
2 Disadvantages: 1) The orientation of the phalanx is dominated by the building.
2) Due to their proximity to rooftops, PV modules operate hotter (and therefore less efficient).
3) The square lineup size is subject to the usable area.
4) When the roof needs to be renovated, the phalanx also needs to be removed (the roof is in good condition at the beginning, so this will not happen until 15 years later).
5) The phalanx may not be easy to approach, in which case it will not be possible to clear the snow and ice from the phalanx.
6) Penetrating the roof (which requires punching holes when fixing the phalanx in the roof) may cause roof leakage.
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Rooftop solar panels can absorb the sun's light to achieve the effect of power generation, which can save us a lot of electricity bills. The disadvantage of rooftop solar panels is that there is more investment, and they are easy to be corroded by wind and sun when placed on the roof for a long time.
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Rooftop solar panels have a large investment, and then it may be **, the effect may be uh, the light brightness of the sunny day and this sunny day and cloudy day is not enough, and the electricity will be affected.
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How many milliliters is 100 grams? Let's take a look at the detailed calculation formula.
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Benefits: From a macro point of view, the energy is green and renewable, and from the micro point of view, it is an investment with stable long-term returns to save electricity bills for yourself.
Disadvantage: The construction of a power station requires additional expenditure, ranging from 5 150,000 yuan.
If you want to install photovoltaic ground power stations, it is recommended to find some more reliable companies that are still doing photovoltaic operators after 2018, such as carbon silver photovoltaics, trina photovoltaics, etc.
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First of all, we need to know the principle of the grid-connected photovoltaic power generation system and what equipment is needed. 1. The working principle of the photovoltaic power generation system: the high-performance solar cell modules are centrally installed on the roof through the bracket, and the solar cell array is formed after series and parallel, and the solar cell array absorbs sunlight and generates direct current, which is converted into alternating current for home use after the photovoltaic inverter and uploaded to the power grid.
2. System composition: mainly including: photovoltaic modules, inverters, brackets, DC cables, AC cables, subsidized meters, and two-way meters.
3. Market**: The market price of photovoltaic systems is generally 8-12 yuan per watt. Generally, the cost of installing a 5kw solar power generation system in a family is about 4-60,000 yuan.
Fourth, the income of household photovoltaic power generation includes three parts: 1. Subsidies to make money: national subsidies + provincial subsidies + city and county subsidies (slightly different from place to place), whether they use it or sell it, as long as the electricity is subsidized.
2. Save electricity bills: power generation for your own use, no need to pay electricity bills, which is equivalent to making money. 3. Sell electricity to make money:
The unused electricity is sold to the state, and the electricity is sold according to the benchmark electricity price of the local coal-fired desulfurization unit. (Electricity prices vary slightly from place to place). Fifth, the return calculation takes the three types of areas in Shandong as an example, and installs a 5kw family power station, according to the market, about 40,000 yuan.
An average of 20kw h can be sent a day, and 7300kw h can be sent a year, according to 30% for self-use, 70% sold to the State Grid to calculate: subsidy income: 7300 * yuan (excluding provincial and prefecture-level subsidies) to save electricity income:
7300 * 30% * electricity fee) = yuan electricity sales income: 7200 * 70% * yuan combined, a year's income: 3066 + yuan can be repaid in almost 6 years, the average operating time of photovoltaic power stations is 25 years, which is equal to the net income of the next 19 years.
National Policy Remarks: 2013 "Several Opinions on Promoting the Healthy Development of the Photovoltaic Industry" The photovoltaic industry is a sunrise industry with great development potential, and it is also a strategic emerging industry with international competitive advantages in China. The state supports the construction of 100 demonstration zones for the large-scale application of distributed photovoltaic power generation.
1,000 photovoltaic power generation application demonstration towns and demonstration villages. State Grid 2015 "Notice on the Further Implementation of Relevant Policies of Distributed Photovoltaic Power Generation by the National Energy Administration" Units at all levels should actively do a good job in service work in terms of grid-connected access, electricity fee settlement, subsidy transfer, etc., and break the key constraints on the application of distributed photovoltaic power generation. Distributed photovoltaic power generation projects can be selected by the user to choose the mode of Internet access.
According to the 2015 "Opinions on Promoting the Application and Industrial Upgrading of Advanced Photovoltaic Technology Products" of the three ministries and commissions, the newly purchased photovoltaic modules of photovoltaic power generation projects should meet the technical index requirements of relevant products in the Ministry of Industry and Information Technology's "Photovoltaic Manufacturing Industry Standard Conditions" (2015), of which the photoelectric conversion efficiency of polycrystalline silicon cell modules and monocrystalline silicon cell modules shall not be less than and 16% respectively.
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There is no impact. On the contrary, it can reduce the amount of sun exposure to the roof. Rooftop PV has been developed for many years, or even earlier, and there have been no reports of adverse harm.
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There is no radiation, and it can be installed on the roof to insulate the heat, killing two birds with one stone. An empty roof is also empty. Dejiu has the answer for you.
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1. The roof increases the load-bearing;
2. In the future, it will be more troublesome to do waterproofing on the roof in summer, because there is a bunch of equipment on it;
Radiation? Because of the addition of solar panels on the roof, the impact of solar radiation on the house and people is blocked, and the radiation is reduced. After all, sunlight is a particle emitted by the fusion of the sun's nuclei, and if there is no ozone protection in the atmosphere and it hits the surface like other planets or the hollow area of the Earth's South Pole, it can seriously harm people.
Antarctic cavitary animals are blinded and cancerous because of this.
As for the presence of electricity and radiation? Then you should go back in time, live in a mud or wooden house, burn wood for cooking, light wax for lighting, and disable all electrical appliances. After all, you think that if there is electricity, there will be radiation, and the wires are now embedded in the wall, and the home is full of electrical appliances, and if you use electricity, there will be radiation in the whole building, which is terrible and can't live.
Let's go back and read the high school textbook.
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The electricity generated by solar energy in your own home is used for the lighting and home appliances of the whole family;
If you have excess electricity generated by solar energy at home, you can send it back to the power supply department and sell it for money, and the power supply department will buy your electricity at the market price;
Environmental protection, your home is a miniature power plant;
The cost of using solar power in your own home will not take long to be able to **, and your family will be profitable in the future; Wait a minute.
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