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Efficient solar storage battery conversion efficiency reflection

Return Listsource:Gratene date: 2022-06-17

Efficient solar storage battery conversion efficiency reflection  China has attached great importance to the research and development of solar storage batteries. During the Seventh Five-Year period, the research work of amorphous silicon semiconductors has been included in national major topics; during eight or five and 1995, China puts the focus of research and development in large-area solar storage batteries. etc. In October 2003, the National Development and Reform Commission and the Ministry of Science and Technology have developed the future five-year solar resource development plan, and the Development and Reform Commission.“Bright engineering”It will be used to raise 10 billion yuan to promote the application of solar power technology. It is planned to reach 300 megawatts in 2015.

  At the moment, the core of the third industrial revolution is the new energy revolution. The efficient solar storage battery technology is the key to improving the use of solar utilization, which represents the advanced technology development direction, which has an important impact on the structural adjustment and sustainable development of my country’s photovoltaic industry. One of the major technologies currently developed. For example, CIGS thin film solar technology has been listed as a green environmental protection project of national energy-saving and carbon reduction, and is one of the projects of national key support.

  The solar photovoltaic market is widely used in the field, diversified, and adapts to the variety of photovoltaic products, which is constantly being introduced. In addition to large-scale grid-connected photovoltaic power plants, the photovoltaic power generation system, small photovoltaic system, and the net photovoltaic system, etc. Rise. The cost of solar storage and photovoltaic systems continues to decline and approximates conventional electricity costs, still the theme of the development of photovoltaic industry, and solar storage will continue to walk on high efficiency and low cost roads.

  Our well-known crystalline silicon batteries are divided into single crystal and polycrystals, which differ in the silicon wafers. The single crystal silicon wafer is made of a polycrystalline silicon feedstock into a single crystal rod, and the polysilicon sheet is made of polycrystalline silicon-cast polycrystalline silicon ingot after the polycrystalline silicon is formed. However, the current photovoltaic market is still a polysilicon battery.

  The basic configuration of the solar storage battery is to use the p-type to engage the n-type semiconductor. In terms of it, the most important parameters are photoelectric conversion efficiency. In a single crystal battery, the industrialization level of the N-type single crystal battery currently developed is approximately 21% -24%, and the domestic industrialization level of the P-type single crystal battery is about 18.7% -19.2%, 19.2% overseas. -20%. The industrialization level of the polycrystalline battery is from 17% to 17.5%. 

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