The hottest photovoltaic industry you can think of

2022-10-24
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You can think of the photovoltaic industry in the next ten years

as early as 1986, human beings had the idea of space solar power plants, placing an extremely huge array of solar photovoltaic cells in earth orbit to form a solar photovoltaic power station, converting high-energy solar energy into thousands of megawatts of electric energy, converting electric energy into microwave energy, and using microwave or wireless technology to transmit to the earth. According to the data, theoretically, in the sunny geostationary orbit, the solar energy can generate 1336 watts of heat per square meter. A 1000 meter wide solar photovoltaic cell array ring is deployed on the upper part of the geostationary orbit. Assuming the conversion efficiency is 100%, then the solar radiation flux received in a year is about equal to the total energy contained in the known exploitable oil reserves on the earth at present

however, at present, there are many technical problems in space solar power plants according to the research reports of giansun securities. 1、 First of all, we should understand that Xiajian solar power station is relatively huge. With the existing spacecraft technology, it is difficult to achieve a space solar power station with a mass of more than 10000 tons (4 orders of magnitude higher than that of satellites). The application of new materials and the improvement of delivery technology are very important, and the design of special structures, space assembly and attitude control technology; Second, the service life is long (more than 30 years), twice that of traditional satellites, and the on orbit maintenance technology needs to be greatly improved; Third, high efficiency, large power generation, and the existing microwave conversion and transmission technology is difficult to achieve; Fourth, the cost. Some institutions predict that the construction of a space solar power station will cost 300 billion to 100 billion US dollars; Fifth, space and environmental issues. The space environment is relatively complex. Space debris is very easy to cause damage to space solar power plants, and space solar power plants may also become space garbage

in the next decade, with the improvement of solar cell technology, China's leading aerospace technology, the maturity of large-scale structure space assembly technology, wireless energy transmission technology and the maturity of space solar power station operation and maintenance technology, China is likely to become a leading power in space solar power station. The design schemes of space solar power stations such as the 1979 SPS benchmark system of the United States, NASA integrated symmetrical focusing system, Japan distributed tethered satellite system, and the European solar sail tower may really become a reality

second, smart micro electricity has entered the homes of ordinary people

the future of the solar photovoltaic industry is bound not to be the world of traditional crystalline silicon solar cells. In view of the theoretical efficiency limit of 28.8% of traditional crystalline silicon solar cells, crystalline silicon solar cells superimposed with other technologies, solar cells will certainly replace the existing solar cells, and the conversion efficiency of superimposed solar cells will also break this theoretical limit. With the improvement of efficiency and reliability and the decline of cost, household solar power generation system will also become the standard configuration of modern families. Just like household appliances, major manufacturers will optimize their photovoltaic power generation system in the truth, and solar power generation will therefore wear the coat of high technology, of which smart micro electricity is the most important part

in short, it is to carry out intelligent control of household photovoltaic power generation, match the corresponding software system, connect to the smart home, and the end app can monitor the safety and various performance indicators of the photovoltaic power station in real time. The computer in the photovoltaic power generation control center can intelligently allocate the use of electrical appliances, when to use it, and start the work of electrical appliances when the solar power station is at high power generation, such as heating the water heater Drive the sweeping robot and air purifier to work, so as to reduce the loss in the process of electric energy storage and damage to energy storage facilities, and improve the service life of energy storage facilities. The intelligent control center can also control the house to turn off the air conditioner and indoor lights when people leave, and people can start them as soon as they come home from work. The control center of the solar power generation system can also monitor the status of each solar power station component, and automatically short circuit abnormal components (such as blocked); At the same time, the sensor above the component can monitor the dust on the surface of the component and automatically search for driving the manipulator to clean up during the period of high power generation. At that time, the price of photovoltaic tracking system will also drop significantly. The daily power generation of household photovoltaic power stations with tracking system is enough to meet the power demand of a small residential building. These ideas are more than ten years in terms of current technology

third, photovoltaic extension products are blooming everywhere

solar photovoltaic power generation has become the most suitable for the development of portable because of its inherent advantages, such as being free from space and geographical restrictions, lower requirements for the environment and personnel compared with traditional energy, stable service life and so on. These problems have led to the fact that China's plastic machinery industry cannot meet the energy form of foreign plastic machinery level energy as soon as possible, However, at present, the portable photovoltaic industry is in an extremely embarrassing position. First of all, the power generation efficiency of solar cells is relatively poor, the unit power generation is low, and most of the market are crystalline silicon solar cells, which directly leads to manufacturers having no money to develop such products. Based on the rapid development of electronic products in the 21st century, micro transformers, energy-efficient batteries and excellent power management chips provide us with unlimited possibilities to create excellent portable photovoltaic systems. According to Ma Qianli, director of the technology center, the mass production of amorphous silicon solar cells and the continuous improvement of the efficiency of thin-film solar cells have provided a reliable space for the development of photovoltaic extension products. Portable photovoltaic power supply, military photovoltaic communication equipment with three prevention functions, solar power charging treasure that can be curled into your pocket and other mature products will appear on the market, rather than staying in a treasure stage

IV. photovoltaic building integration will become a rising star

photovoltaic building integration has always been a tepid sector in the photovoltaic industry. The reason is not that there is no market for photovoltaic building integration, but that the current level of photovoltaic technology has not yet reached the scope of implementing the requirements of photovoltaic building integration. At present, the market is still dominated by crystalline silicon solar cells, However, crystalline silicon solar cells are not suitable for photovoltaic building integration. Crystalline silicon solar cells are extremely sensitive to the incidence angle of light. When the incidence angle of sunlight is lower than a certain value, the power generation will drop sharply. However, in photovoltaic building integration, there are considerable restrictions on the design inclination and orientation of solar panels; Due to the nature of crystalline silicon solar cell modules, they can't withstand too many changes in shape, and they are helpless for all kinds of strange and complex structures; Cost reasons: the current photovoltaic building integration is mostly based on the cost of photovoltaic power generation. It is customized again according to the building. Due to the current cell technology, the cost increases again

amorphous silicon solar cells may be the best partner of photovoltaic building integration, such as CIGS. One of its relatively large characteristics is that the power generation is not much related to the incident angle of light. Within a certain angle range, the impact of power generation is much lower than that of crystalline silicon solar cells; Plasticity is one of the most important characteristics of thin-film solar cells. It can be deposited on a substrate whose surface is not flat, or even on a flexible substrate through the film making process; At the same time, the theoretical efficiency limit of thin-film solar cells is high and the development prospect is great, which is bound to become a lifesaver for the integration of photovoltaic buildings. At present, with the increasing land use cost of photovoltaic power stations, the integration of photovoltaic buildings is bound to have a new world

cast a brick to attract jade. The above content is the imagination of the editor with little talent and learning for the future of photovoltaic. Welcome to the exchange and discussion in the comment area of industry celebrities

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