"Waste turning treasure" sophomore students make their own photovoltaic power station

Zhang Qiang's self-made single-crystal battery assembly.

The new semester of Sichuan Vocational College of Science and Technology in Unity Town, Gifu County has a highly sought after man with a large number of “fans” at the school. His name is Zhang Qiang and he is a sophomore student in the New Energy Engineering Department of the School of Transportation. The "fans" don't give flowers to him or sign him. They only discuss the professional issues all around him.

What is the reason why an ordinary student is so concerned about? Zhang Qiang has his own famous "magic weapon" - a household photovoltaic power station.

Transformed into "inventor" 90 boys homemade power station

The 20-year-old Zhang Qiang was born in an ordinary rural family in Ningnan County, Xichang City. In 2011, he was admitted to the Department of New Energy, Sichuan Vocational College of Science and Technology. In the school, Zhang Qiang specialized in photovoltaic power generation technology and applications. After studying for more than a year, in August of last year, he used his knowledge to manually create a set of home photovoltaic power stations on his house roof, using solar power to generate power for his own home. Household appliances supply power.

According to Zhang Qiang, PV power stations can also be called photovoltaic systems. They consist of solar cell arrays, battery packs, charge and discharge controllers, inverters, and AC power distribution cabinets. The production process is complex.

Although it is difficult to make photovoltaic power stations by hand, Zhang Qiang, who has mastered solid professional knowledge and skills in the school, has completed all the production and installation of the entire power plant except for the previous ones in only three days. It is understood that although the production time is short, the power supply effect of this hand-made and tailor-made household power station is very good.

According to Zhang Qiang, the total power of this household photovoltaic power station is 330 watts. Apart from being unable to supply power to high-power electrical equipment, it can basically meet the basic daily life of households. Zhang Qiang introduced that this power station is entirely using solar energy, and electricity consumption at home can be reduced by about 2 degrees a day, which is cheaper than using hydropower and thermal power, and environmental protection and energy conservation.

Turn waste into treasure products have promotion value

It is worth mentioning that the materials used by Zhang Qiang to make photovoltaic power stations are all waste materials collected during the usual internship, or are not used in the production of photovoltaic systems. The entire production cost is only about 1,000 yuan, which is very low. The production cost of production in the market.

“The photovoltaic power station made by Zhang Qiang is entirely handmade. In fact, it is not easy to make solar cell modules by hand. In ordinary factory production, this module has 11 main processes and the related equipment investment is 100 million yuan. Yuan Yuan and above.” Professor Zeng Xinyi of the new energy industry expert and Sichuan Vocational College of Science and Technology learned that after Zhang Qian made a photovoltaic power station by hand, he could not help but put up a thumbs up.

“The materials he uses are mostly 'scraps' that cannot be used for mechanical production, but he can combine materials with different structures and different properties and use the knowledge he has learned to solve the problems in hand-making. It is already an invention. According to Professor Zeng Xinyi, the home photovoltaic power station produced by Zhang Qiang has a market price of about RMB 30,000 and a service life of about 20-25 years, which has certain market promotion value. Reporter Dong Feng

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