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Q1. what is distributed photovoltaic power generation? It is a new and promising way of generating and energy comprehensive utilization, which is different from the traditional centralized power generation (thermal power generation, etc.). It advocates the principle of near-by power generation, near-grid connection, near-conversion and near-use; it can not only effectively provide the same scale of system power generation, but also effectively solve the problem. The loss of power in boosting or long-distance transportation. What are the advantages of Q2. photovoltaic? Economy and energy saving: generally spontaneous, excess electricity can be sold to the power supply company through the State Grid, when insufficient power supply by the grid, since then greatly saving electricity costs can also be subsidized; heat insulation and cooling: in summer can be insulated by cooling 3-6 degrees, winter can reduce heat transfer; green environmental protection: distributed photovoltaic power generation projects in the generation process No noise, no light pollution, no radiation, is the true sense of zero emissions, zero pollution static power generation; aesthetic personality: the perfect combination of architecture or aesthetics and photovoltaic technology, so that the whole roof looks beautiful atmosphere, strong sense of technology, and enhance the price of the property itself Value. Q3. if the roof doesn't face the south, is it impossible to install photovoltaic power generation system? It can be installed, but it generates a little less electricity, which is generated according to the direction of the roof. The south is 100%, and the East and West may be between 70-95%, and the north is 50-70%. Does Q4. need to operate on its own everyday? Not at all, because the system monitoring is fully automatic, it will start its own shutdown, without manual control. Q5. how can I get the proceeds from the sale of electricity and subsidies? Before connecting to the grid, the power supply bureau needs you to provide a bank card number for the local power supply bureau to settle monthly / every three months; when connecting to the grid, it will sign a power purchase agreement with the power supply company; after connecting to the grid, the power supply bureau will take the initiative to settle with you. Q6. is the intensity of my photovoltaic system power generation? The intensity of illumination is not equal to the power generation of local photovoltaic system. The difference is that the photovoltaic system is based on the local light intensity, multiplied by a performance ratio, the actual local use of photovoltaic system power generation, the efficiency system is generally below 80%, close to 80% of the system is a better system. In Germany, the best system can achieve 82% system efficiency. Q7. does rain or cloudy weather affect power generation? Will have an impact. The amount of electricity generated will decrease as the illumination time decreases and the intensity of illumination decreases. However, the annual average power generation (such as 1100 degrees / kW / year) is calculated. Q8. on rainy days, the power generation of photovoltaic system is limited. Will the electricity consumption be insufficient? This fear does not exist, because the PV system is a grid-connected power system with the State Grid. Once the PV system can not meet the electricity demand of the owners at any time, the system will automatically take the electricity from the State Grid to use, but the household electricity habit has become partly dependent on the State Grid. Q9. if the system has dust or garbage on the surface, will it affect the power generation? The effect is small, because the photovoltaic system is related to the sun's irradiance, not obvious shadows will not have a significant impact on the system's power generation. Moreover, the glass of the solar module has a self-cleaning function, that is, in rainy days, the rain can wash away the dirt on the surface of the module. Therefore, the operation and maintenance cost of PV system is very limited. Is there any light pollution in the Q10. PV system? Non-existent. In principle, the photovoltaic system uses tempered glass coated with anti-reflective film to maximize light absorption, reduce reflection and thus increase power generation efficiency, without light reflection or light pollution. The reflectivity of traditional curtain wall glass or automotive glass is 15% or more, while that of first-line component manufacturers is less than 6%. Therefore, the light reflectivity of glass is much lower than that of other industries, so there is no light pollution. How does Q11. ensure that the PV system operates efficiently and reliably for 25 years? First, strictly control the quality of product selection, must choose a first-line brand component manufacturers, so as to ensure from the source that the component power generation 25 years without any problems: 1 component power quality assurance for 25 years, to ensure that the efficiency of components, 2 has a national laboratory (with strict quality control system of production lines) 3 scale Big (the larger the capacity, the bigger the market share, the more obvious the scale economy) Good faith (the stronger the brand effect, the better the after-sales service) Whether only focus on solar photovoltaic (100% of photovoltaic enterprises and only subsidiary companies do photovoltaic industry persistence attitude is different) in system configuration, we must choose compatibility. The optimum counter, collector box, lightning protection module, distribution box, cable and so on are matched with components. Second, in terms of system structure design and roof fixing, choose the most appropriate fixing method, try not to destroy the waterproof layer (i.e. not to fix the expansion bolt on the waterproof layer), even if the repair is also a hidden danger of future leakage. Structurally, we must ensure that the system is strong enough to deal with extreme weather such as hail, thunder and lightning, typhoon, heavy snow, or the roof and property safety are 20 years of hidden dangers. Q12. my roof is made of cement + tile structure. Is it able to withstand the weight of photovoltaic system? Photovoltaic systems weigh no more than 20 kilograms per square meter, as long as they are able to withstand the weight of solar water heaters
Top bearing is fine. How can the power supply bureau accept the Q13. system after installation? System design and installation should be done by professional installation company.


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