Influence of operating temperature on efficiency Chinese made silicon solar cells
Currently, as a result of increasing the efficiency of industrial
designs monocrystalline silicon solar cells to 17-18% with a
significant decrease in their cost Chinese manufacturers were the
largest importers of photovoltaic products in the world. Much of
enterprises engaged in the industrial production of photovoltaic
modules as initial photovoltaic cells use solar cells in China. In
addition to the market segment, most imported PV modules
products also occupy Chinese manufacturers. However, in the
operation of such devices according to the size of only a fraction
of the efficiency of solar energy used to generate electricity.
Most of the solar radiation is converted to heat in the device
structures. This increases the operating temperature of photovoltaic
cells, in accordance reduces their effectiveness.
Based on the above, the purpose of this work was to study
the effect of temperature on the efficiency of photovoltaic processes
in the industrial design of photovoltaic cells in China.
СОНЯЧНА ЕНЕРГЕТИКА ISSN 1819-8058
Відновлювана енергетика. 2017. № 3 41
The influence of operating temperature on the efficiency
silicon photovoltaic Chinese production showed that with increasing
operating temperature reduction efficiency is 0,07
%/°C, which is significantly higher than in device structures of
European and domestic production due to unconventional and
reduce short-circuit current density.
The method of computer modeling of quantitative exposure
light diode characteristics on efficiency have been shown that
lowering efficiency silicon photovoltaic Chinese production is
due not only to the traditional reduction diode saturation current
density but also decrease in shunt resistance.
Identified temperature dependence of efficiency demonstrates
the feasibility of using Chinese-made photovoltaic cells in
the construction of photovoltaic thermal plants, which together
with the heat pump is part of a combined hot water, heating and
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