A group of newly installed "smart seats" attract onlookers at the Yangzhong Binjiang Zero-carbon Park in Zhenjiang, Jiangsu province. In addition to being able to charge your phone wirelessly, the seat also has WiFi radio, Bluetooth radio and wireless charging capabilities. This "intelligence" is mainly thanks to the black solar panels laid on the seat, which can convert the absorbed solar energy into electricity to generate electricity and store energy.
These smart seats have now been put into use in several regions in China, including the Xiongan New Area. See here can not help but wonder, what are the advantages of solar energy, and can be applied in what fields?
Treasure energy - solar energy
Solar energy is a kind of new energy, through photovoltaic power generation technology, we can use solar cells to directly convert solar energy into electricity. Compared with traditional energy and other new energy sources, photovoltaic power generation technology has many unique advantages:
First of all, solar energy resources are abundant, huge storage, inexhaustible, inexhaustible, and do not need transportation;
Secondly, the photogenerating volt effect does not involve the conversion of mechanical energy to electromagnetic energy, so the whole process is noiseless and will not affect the daily life of surrounding residents, and solar power generation is clean, clean and environmental protection.
Finally, photovoltaic modules have long service life, stable operation, high reliability and low maintenance costs.
It can be seen that solar energy is a form of energy with great potential both in terms of the abundance and availability of resources and the sustainable development of ecological environment. Photovoltaic power generation is recognized as the most promising new energy technology in the world.
Anything can be done in heaven or in sea
Solar photovoltaics have played an important role in the exploration of the sky and the sea for 160 years.
Back in 1960, the Soviet-designed Soyuz-1, the first manned spacecraft powered by solar cells, made its maiden flight.
In 1962, The Telstar, the first commercial communications satellite developed by Bell LABS, was launched, powered by 14 watts of solar cells.
In 1973, the World's first photovoltaic home was built at the University of Delaware.
The Pv Pioneer Project was launched in the Sacramento City Public Utility District (SMUD) in 1992. This is the first extensive commercialization of a distributed, grid-connected photovoltaic system (" rooftop sun ").
Nowadays, photovoltaic power generation is gradually moving toward industrialization and market. Photovoltaic power generation is widely used around the world. Photovoltaic power generation footprint is almost everywhere involved in electricity, including satellite, spacecraft, irrigation, breeding, lighting, communications, nature reserves, seawater desalination, agriculture, exploration, uav and other fields.
Photovoltaic market, promising
Diversified use of solar energy will be promoted, according to a white paper titled "China's Energy Development in the New Era" released by The State Council Information Office on Dec. 21. It can be foreseen that the photovoltaic industry will enter the market development cycle.
According to the International Energy Agency (IEA) forecast, by 2030 the global photovoltaic cumulative installation is expected to reach 1721GW, to 2050 will further increase to 4670GW, huge development potential. At present, China's photovoltaic industry ranks among the top in the world in terms of manufacturing scale, industrial technology level, application market expansion and industrial system construction.
The world's largest supplier of photovoltaic modules is trina Solar, a Chinese company. On June 10, 2020, Trina Solar was successfully listed on the Science and Technology Innovation Board of the Shanghai Stock Exchange. Behind its growth, there is also the support of outside funds. For example, Legend Holding's Zhengqi Finance saw the potential and strength of Trina Solar and cooperated with it and invested in it in 2016.
According to trina Solar's recent report for the third quarter of 2020, the company's operating revenue in the first three quarters of 2020 is 19.9 billion yuan, with a year-on-year growth of 18.66%. Net profit attributable to shareholders of listed companies was 832 million yuan, up 118.94% year-on-year.
At the same time, the rapid development of China's photovoltaic market has also brought development opportunities to the upstream and downstream of the industrial chain. Photovoltaic modules are mainly composed of cells, glass, backplane and film. The film is used to bond the cells, glass and backplane. It is one of the key materials of photovoltaic packaging modules, and its cost accounts for about 5% of the modules.
Since August 2020, EVA demand has continued to increase thanks to the rapid growth of photovoltaic battery installations. EVA photovoltaic material VA content in 28%-33%, its production is ultra-high pressure process, process is more complex, technology monopoly is strong, only a few domestic enterprises master.
Among them, lenovo holding member enterprise lianhong xinke is one of them. The high-end EVA product FL02528 produced by Lianhong Xinke has changed the situation of over 90% import dependence and broken the foreign monopoly. On December 8, 2020, Lianhong Xinke (Stock code: 003022) was listed in Shenzhen Stock Exchange, marking another milestone in its 10-year growth and a solid step for Legend Holdings in industrial investment and high-tech exploration.
How to make good use of solar energy, there is still a long way to go. For example, the reduction of KWH cost depends on the installed scale and chip innovation, and the high frequency and high density penetration of photovoltaic power generation also needs the integrated development of AI, cloud, big data, 5G and other ICT technologies. These improvements and innovations still need the continuous support of policies, capital and talents. In the future, it can be predicted that with the continuous development of the global photovoltaic industry, the era of revolutionary changes provided by new energy represented by solar energy is coming.