Photovoltaic power generation owners concerned about the question and answer
Release time:
2019-01-08 15:55
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In recent years, household distributed photovoltaic has developed by leaps and bounds in our country. In some developed rural areas, distributed power stations have flown into the homes of ordinary people. However, there are still many people who do not quite understand distributed power stations. Today, some common problems are compiled for your reference.
1. Will the contact panel get an electric shock when it thunders?
A: Photovoltaic system has lightning protection measures.
Does the reflection of the battery panel affect the neighbors?
Answer: At present, the photovoltaic module basically uses coated glass, and the reflective effect is very small.
3. Does the battery panel have radiation?
Answer: The photovoltaic power generation system converts solar energy into electrical energy based on the principle of photovoltaic effect generated by light. It has no pollution and no radiation. Electronic devices such as inverters and power distribution cabinets have passed the EMC (electromagnetic compatibility) test, so there is no harm to the human body.
4. If the power grid is cut off, can photovoltaic still be used?
Answer: With the sun, the photovoltaic system can generate electricity. The grid-connected inverter has island protection, and the output is automatically stopped when the mains power is cut off. It can be understood that the system is generating power, but it is not connected.
5. Will the power be insufficient when it is cold in winter?
Answer: The factors that directly affect the power generation are the irradiation intensity, the sunshine duration and the working temperature of the solar cell module. In winter, the irradiation intensity will be weak, the sunshine duration will be short, and the power generation will be less than that in summer. Distributed photovoltaic power generation is connected to the grid. As long as the grid has electricity, the household load will not have power shortage and power failure.
6. How to clean photovoltaic modules?
Answer: Rain water can be cleaned and does not require special maintenance. If you encounter adhesive dirt, you can simply wipe it.
7. Will there be any danger of electric shock when wiping with water?
Answer: In order to avoid the electric shock injury and possible damage to the components by wiping the components under high temperature and strong light, it is recommended to clean the components in the morning or late afternoon.
8. Can I step on the components for cleaning?
Answer: The component has a certain load-bearing capacity, but it cannot be cleaned on the component, which will cause hidden damage to the component and affect the life of the component.
9. Will house shadows, leaves and even bird droppings on photovoltaic modules affect the power generation system?
Answer: May produce hot spot effect, will affect the power generation. If you find leaves and bird droppings, you need to clean them up in time.
10. Can it resist typhoon and hail?
Answer: The system is designed according to local conditions. Wind pressure, accumulation, and roof style will be considered.
11. When the sun is scorching, do vulnerable devices need to be replaced immediately if they are broken?
Answer: It cannot be replaced immediately. If the replacement is recommended to be carried out in the morning or late afternoon, the power station operation and maintenance personnel should be contacted in time and replaced by professionals.
12, thunderstorm weather need to disconnect the photovoltaic power generation system?
Answer: Distributed photovoltaic power generation systems are equipped with lightning protection devices, so there is no need to disconnect. In order to ensure safety, it is suggested that the circuit breaker switch of the combiner box can be disconnected, the circuit connection with the photovoltaic module can be cut off, and the direct lightning strike hazards that cannot be removed by the lightning protection module can be avoided. The operation and maintenance personnel should detect the performance of the lightning protection module in time to avoid the hazards caused by the failure of the lightning protection module.
13. What is the power generation effect in rainy weather?
A: It can also generate electricity, but the effect is not very good. If it is cloudy, the power generation is only about 20% of that of sunny days.
14, a month household 300 degrees or so how to match?
Answer: 300 degrees a month, with an average of 10 degrees per day. It is enough to install a 2KW system. The sunshine time is calculated by 5 hours.
15. The commercial electricity used in my home costs 1 yuan per degree. Can this commercial and residential dual-purpose building be connected to the grid and receive subsidies?
A: Absoltly, this electricity price is more cost-effective than civil electricity installation of solar power.
16. How to estimate the investment of family distributed photovoltaic power generation system? How long does it usually take to recover the cost?
Answer: The installation capacity of the general family distributed photovoltaic power generation system is about 3-10 kW yuan. According to the cost per watt of 10-12 yuan, the system investment is about 36000-120000 yuan. Depending on the lighting conditions, user-side electricity prices, subsidies and system costs, the cost can be recovered in 6-8 years, and the life of the photovoltaic system can reach and exceed 25 years, which means that the electricity revenue generated and the electricity saved in the remaining nearly 20 years will become a direct profit.
17. If various costs are considered, what is the cost price of electricity generated by distributed power stations?
A: 0.6 yuan -1 yuan/kWh varies greatly according to regional sunshine conditions and system capacity. The larger the system, the lower the cost.
18. If a solar tracker is added (the angle and direction of the panel are automatically adjusted), will it generate more electricity?
Answer: You can generate more electricity, but the cost is not proportional to the amount of electricity generated, but also increase the recovery period. In addition, the tracker is a mechanical device, and its reliability is not high, which will increase the cost.
19. Are there any restrictions on installing solar power generation equipment?
Answer: There are generally no conditions for home installation. You need to fill in a form at the power grid business hall to apply.
20. Is it difficult to install yourself?
Answer: Professional knowledge is required. Professional installation, power grid equipment qualification requirements.
21, can guarantee the power generation?
Answer: It can be guaranteed that it is recommended to find a regular professional roof photovoltaic installer.
In fact, as people who don't know much about photovoltaic, a new thing, it is only right to raise these questions. In the face of the vast distributed blue ocean and the urgent need to cultivate the terminal market, photovoltaic people still need to maintain a high degree of enthusiasm, plus twelve points of patience, seriously answer all kinds of questions.The popularization of photovoltaic has a long way to go and requires you and me to work together.
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Photovoltaic power generation owners concerned about the question and answer
In recent years, household distributed photovoltaic has developed by leaps and bounds in our country. In some developed rural areas, distributed power stations have flown into the homes of ordinary people. However, there are still many people who do not quite understand distributed power stations. Today, some common problems are compiled for your reference.
Not only in China! Photovoltaic in the United Kingdom, the United States, Sweden, Turkey as "hot"!
The hot development of photovoltaic power generation in China has been recognized globally. China's new installed capacity of photovoltaic power generation has been the world's first for 5 consecutive years, and the cumulative installed capacity has also been the world's first for 3 consecutive years. In fact, photovoltaic power generation is not only developing rapidly in China, but also in other countries around the world. It is also "favored" and develops rapidly.
Transformer capacity is not limited, photovoltaic power station want to install, hurry up!
In the past two days, Xiao Bian heard about such a thing. There was an old man in beipiao city, Chaoyang City, Liaoning Province. Because the local transformer capacity limit was lifted, the old man immediately added more than 20 kilowatts to his photovoltaic power station. At first, the old man learned on TV that the country was promoting household photovoltaic power stations. As soon as he listened to Coke, he was about to retire. His wife did not work at home for the aged. If his family could install a household photovoltaic power station, then the old two would not be a problem for the aged. He would do what he said. Under the introduction of relatives and friends, I found Lu Yang, the agent of the brand of household photovoltaic power station system in beipiao city. With the help of Lu Yang, I installed a 11 kW household photovoltaic power station on my roof. At first, he wanted to decorate more, but due to the local transformer capacity limit, his family only installed 11 kW at most. According to the old man, after connecting to the grid, he can receive more than 1000 electricity sales on time on the 12th of each month. In 2018, the old man read the news and said that the transformer capacity limit had been lifted, which made the old man happy. He quickly contacted Luyang to increase the capacity and installed 20.4 kW photovoltaic power station in his yard. He said that he would receive more than 3000 a month and earn more than 30000 a year! Transformer capacity limit has been removed! In the new standard "4 basic requirements", there is no mention of restrictions on the access capacity of photovoltaic projects. Researcher Wang Sicheng has made a speech report on "Distributed Market Policy and Development Trends. In the report, researcher Wang Sicheng also revealed that the "Measures for the Management of Distributed Photovoltaic Power Generation Projects" will be issued soon. The content mentioned that household photovoltaic projects are not subject to quota restrictions. According to the editor, many areas across the country have already liberalized the restrictions on transformers. If you want to install a roof, you can directly submit a grid connection application to the local power grid company. If we encounter another 25% requirement in the process of handling household photovoltaic power stations, we can further communicate with the local power grid company and inform them that the standard has been abolished and there are no relevant provisions in the new standard. Photovoltaic power stations can provide for the aged and make money. Now the transformer restriction has been lifted. While the subsidy is still there, install it quickly! After 2018, some local subsidies will also disappear, and then you can earn less money!
Some time ago, the signing ceremony of the strategic cooperation agreement between North University of China and Hunan Nuocheng Photovoltaic Technology Research Institute was successfully held at the headquarters of Hunan Nuocheng Group. The leaders of our company attending the signing ceremony are: Xiang Xiaolong, general manager of Hunan Nuocheng Group, Yao Yonghong, general manager of Hunan Nuocheng Power Generation Co., Ltd., and Sheng Hongsheng, deputy general manager of Hunan Nuocheng Inverter Division. Wu Xionghui, manager of inverter division, and Chen Mingzuo, manager of technology department, attended the signing ceremony. The strategic cooperation team led by Ren Yifeng, dean of the School of Electrical and Control Engineering of North University of China (front and left 2 in the figure below), attended the signing ceremony. The strategic signing ceremony was presided over by Xiang Xiaolong, general manager of Hunan Nuocheng Group, and delivered a welcome speech with deep feeling: North University of China is my alma mater, and I always miss my alma mater. Now because of the photovoltaic business, let me once again review the alma mater that deeply cultivated feelings. The joint efforts of Zhongbei and Nuocheng are a new era in the strategic development of Nuocheng, a grand event for Nuocheng, and a happy event for Nuocheng. The cooperation with Zhongbei is the strong backing for Nuocheng to go far and set sail. Let the alma mater photovoltaic technology give birth to Nuocheng photovoltaic more powerful and more powerful. Ren Yifeng, Dean of the School of Electrical and Control Engineering of North University of China, expressed his warm congratulations on the signing of the strategic cooperation framework agreement between North University of China and Hunan Nuocheng Group, and at the same time gave high hopes for the cooperation between the two parties. According to the content of the agreement, the two parties will conduct comprehensive cooperation in the field of solar photovoltaic technology based on the basic principle of complementary advantages, and implement a win-win strategic goal. Subsidiary of Hunan Nuocheng Group: Yao Yonghong (left), general manager of Hunan Nuocheng Power Generation Co., Ltd., and Ren Yifeng (right), dean of the Academy of Engineering of North University of China, are signing a contract. The two sides signed a text exchange. Witness after the signing of the cooperation agreement. Sheng Hongsheng (left), deputy general manager of Hunan Nuocheng Inverter Division, and Ren Yifeng (right), dean of the Academy of Engineering of North University of China, are signing a contract. The two sides signed a text exchange. Witness after the signing of the cooperation agreement. After the signing of the cooperation agreement, Xiang Xiaolong (2 on the right), general manager of Hunan Nuocheng Group, Yao Yonghong (1 on the left) of Hunan Nuocheng subsidiary Power Generation Co., Ltd., and Sheng Hongsheng (1 on the right), deputy general manager of Hunan Nuocheng Inverter Division, took a group photo with Ren Yifeng (2 on the left), dean of the Academy of Engineering of North University of China. Ren Yifeng, Dean of the Academy of Engineering of North University of China, took a group photo with our senior executives, middle-level cadres and some receptionists.
Rich PV Wands Gold and Silver at China-Africa Economic and Trade Expo
From June 27 to 29, 2019, the first China-Africa Economic and Trade Expo was successfully held at the Hunan International Convention and Exhibition Center. As an outstanding representative of the photovoltaic industry, Hunan Nuocheng Photovoltaic Technology Co., Ltd. was invited to participate in the Expo. Company leaders took photos with representatives of the organizers at the Expo site Company leaders took photos with representatives of African officials Company leaders took photos with representatives of African officials At the Expo, Hunan Nuocheng Photovoltaic Technology Co., Ltd. fully demonstrated its corporate shape.
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