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The sampling results of 29 years of photovoltaic module use provide a basis for module lifespan!

Source: 本站 | Release date: 2023-04-11 14:06:20 | Views: 197

Summary:

The Birth of the First Photovoltaic Power Plant In 1983, Yuanzicha Township, Yuzhong County, Lanzhou City, Gansu Province, was one of the poorest villages in China at that time, and the first photovoltaic power station in China was born here. This bat…

The Birth of the First Photovoltaic Power Plant

In 1983, Yuanzicha Township, Yuzhong County, Lanzhou City, Gansu Province, was one of the poorest villages in China at that time, and the first photovoltaic power station in China was born here. This batch of solar single crystal panels was manufactured and donated by Kyocera Corporation in Japan, and installed by Gansu Natural Energy Research Institute, with a total installed capacity of 10kW.
There are 36 households in the village, each with 2 fluorescent lamps. At that time, the 10kW photovoltaic power plant met the electricity consumption of the entire village!
As this is an off grid power plant, it is impossible to know its specific power generation capacity at that time, but it can also be roughly estimated from its power supply situation.

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In the late 1980s, with the rapid development of China, national electricity was delivered to this small village, and this photovoltaic power plant also fell out of favor.
Many photovoltaic panels have been dismantled by villagers and used as pigsty gates

After learning about this situation, the team from Gansu Energy Research Institute negotiated with local government villagers to transport back the photovoltaic power plant, which only had about 7kW left, for a fee.

At that time, there were two disposal methods for the returned photovoltaic power plant:

1、 Take it to Tibet and install it for those who need it. 2、 Stay at the research institute

Weighing the value, it was ultimately left at the research institute.


Greater value

Decades of spring and autumn have passed, and in 2018, this photovoltaic power plant was already 35 years old! Nowadays, it is still generating electricity! It still has 6.4kw installed capacity left! In recent years, due to various considerations, it has also been integrated into the State Grid.

How is its attenuation status now? Take a look at the photovoltaic module sampling data of the research institute after 29 years of operation:


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From this data, it can be seen that after 29 years of use, its average power reduction is 16%, and the severely attenuated photovoltaic modules are less than 20%!
Not to mention that the current technology is more mature, the examples from over 30 years ago also fully confirm that photovoltaic modules can be used for more than 25 years!


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