China has become the world's largest producer of solar cells for many years in a row. The photovoltaic industry has embarked on the road of independent research and development of new technologies, and it has been very effective. The average conversion efficiency of high-efficiency polysilicon cells, the average conversion efficiency of monocrystalline silicon cells, and Hanergy thin-film power generation technology have all reached the international advanced level. Verified by Fraunhofer Institute of Solar Energy Systems, Germany, the highest conversion rate of copper indium gallium selenide components in China reached 21%; gallium arsenide components were certified by the National Renewable Energy Laboratory, and the highest conversion rate reached 30.8%. World record. The integrated cost of polysilicon production in backbone enterprises has dropped to 90,000 yuan/ton, the average integrated power consumption in the industry has dropped to 100 KWh/kg, and the industrialization process such as the silane fluidized bed process has been accelerating; the single crystal and polycrystalline cell technologies have been continuously improved, and the industry The chemical efficiencies reached 19.5% and 18.3% respectively, and the technological route such as passivated emitter back contact (PERC), heterojunction (HIT), back electrode, and high power spotlight accelerated development; and the photovoltaic module packaging and anti-photovoltaic attenuation technologies continued to improve. The production cost of leading corporate components fell to 2.8 yuan per watt. The investment cost of photovoltaic power generation systems fell below 8 yuan per watt, and the cost of electricity was reduced to 0.6-0.9 yuan per kilowatt-hour.
By the end of 2016, the total output value of photovoltaic manufacturing exceeded 336 billion yuan, and the installed capacity of photovoltaic power generation exceeded 34 GW. The output of polysilicon is approximately 194,000 tons, accounting for 33% of the world's total production. In 2015, the output of silicon wafers was approximately 6.8 billion, and the output of solar cells was approximately 28GW, which accounted for 60% of the world's total output, maintaining the global production of solar cells. The status of a big country. Photovoltaic power generation has been rapidly developed in China in recent years as a power generation method with limited use area and relatively simple and easy installation of equipment. According to the statistics of the National Energy Administration, by 2015, China's total photovoltaic installed capacity has reached 43.18 GW, and the newly installed capacity is 15.18 GW, which has become the largest installed capacity of photovoltaic power generation in the world. In China's current total photovoltaic installed capacity, photovoltaic power station installed 37.12GW, distributed power station installed 6.06GW, annual power generation of 39.2 billion kwh, accounting for 0.7% of the national power generation.
In order to improve the situation in which photovoltaic products rely heavily on the export market, the government has formulated a series of policies, increased support, and vigorously promoted the construction of the domestic demand market. Domestic photovoltaic installations are still expected to perform strongly. With the gradual saturation of ground power stations in the northwestern region of China, and the conditions for access to photovoltaics at parity, the future of domestic distributed photovoltaics will usher in a period of high development. In line with the maturity of energy storage technology, the construction of distributed power stations will be initiated in the eastern and southern regions. upsurge.
With the continuous increase in the cost of traditional energy, the technology in all aspects of the photovoltaic industry chain continues to progress and costs continue to decline. Solar PV will become one of the mainstream energy sources by 2030. It is believed that under the background of advocating energy-saving, emission-reducing and low-carbon economy, the mainland solar photovoltaic industry will surely usher in a more brilliant tomorrow.