Statistics on the import & export of photovoltaic wafers, solar cells & solar panels in China in the first quarter of 2019

In the first quarter of 2019, solar cells, solar panels, and photovoltaic wafer export data were released. What is the export market like? Let’s take a look!

Solar cell

In the first quarter of 2019, China’s solar cell exports totaled US$400 million, an increase of 35.71% year-on-year; installed capacity was 2,777 MW, a year-on-year increase of 100.5%. Mainly exported to South Korea, India, Vietnam, Turkey and Germany. Among them, Aixu, Jingao, Tongwei, Suntech, Tianhe, and Shunfeng Optoelectronics have accounted for about 50% of the global market.

Solar panels

In the first quarter of 2019, China’s solar panel exports totaled US$4.39 billion, up 31.89% year-on-year; installed capacity was 16.78GWMW, up 77.63% year-on-year. Mainly in Vietnam, the Netherlands, India, Japan, Australia as the main market.

Photovoltaic silicon wafer

In the first quarter of 2019, the export value of photovoltaic wafers in China decreased significantly. The total export value of the world was 582 million US dollars, down 37.06% year-on-year; the installed capacity was 1.346 billion pieces, down 11.19% year-on-year. Most are sold to Korea, Malaysia, Taiwan, Vietnam, Thailand and India.

What is the test method for solar panels

Solar Panel Test

AM1.5 refers to the spectrum. Since solar panels are generally different in efficiency under different light intensity or spectral conditions, AM0 spectrum (1.367 KW/m2) is generally used for space solar panels, and AM1.5 spectrum is generally used for ground applications.
(ie, the ground at noon, clear sunlight, 1.000 KW/m2) as a standard source for testing the efficiency of solar panels. The solar panel’s spectral efficiency in AM0 is generally 2 to 4 percentage points lower than the AM1.5 spectral efficiency. For example, a Si solar cell with an AMO efficiency of 16% has an AM1.5 efficiency of about 19%.

Solar Panel Power Test
Test conditions: AM1.5, 1000W/m2, 25°C Output power Tolerance: ±5%
Standard test conditions: AM1.5, 1000W/m2, 25°C interpretation

AM1.5, 1000W/m2, 25°C is the test standard for IEC61646–Design and finalization of thin film photovoltaic modules for the ground (GB/T18911-2002). It is also the general test standard for GB/T11011-1989–Amorphous silicon solar cell electrical performance test.

AM means air-mass, defined as: path-length through the atmosphere relative to vertical thickness of the atmosphere, which is the vertical distance of the actual distance of light passing through the atmosphere from the upper atmosphere. AM1.5 is the actual distance of light passing through the atmosphere to 1.5 times the vertical thickness of the atmosphere.

1000W/m2 is the irradiance of the light of the standard test solar cell.

25 ° C is working at a temperature of 25 ° C. The efficiency of the solar cell will decrease with the increase of temperature. When it is used, the temperature will rise, and then the temperature coefficient will give the voltage and current and output power of his work.

Test Methods
If you don’t have a special instrument, you can buy one or several 500W metal halide lamps. Other heat sources are also available. When the area of ​​the solar panel is large, it can be arranged according to the illumination range of the lamp, and then equipped with a voltage regulator, the distance is about 15-20CM, and the data is measured by the light meter: 40,000 LUX, which is the currently recognized international standard test methods. Then put the solar panels to test.