“Fizika va texnologik ta’lim” jurnali | Журнал “Физико-технологического
образование” | “
Journal of Physics and Technology Education” 2021, № 4 (Online)
Journal of Physics and Technology Education | https//phys-tech.jspi.uz/
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perovskite is 12% [2], and for thin films based on cadmium telluride, the efficiency
reaches 22% [3]. Important factors that determine the efficiency are the level of
insolation in the installation region, the azimuth and the angle of inclination of the
solar panels [3].
It is well known that a solar photovoltaic station (hereinafter - FES) is
designed to provide electric power to household and other devices and is a power
plant belonging to the class of renewable energy sources. The principle of
operation of the FES is based on the direct conversion of solar radiation into
electrical energy with a constant voltage, its accumulation and conversion into
electrical energy of alternating voltage 220 V with a frequency of 50 Hz for use by
consumers.
Solar panels
The power of the solar radiation flux per square meter, excluding losses in the
atmosphere, is about 1350 watts. At the same time, the specific power of solar
radiation in very cloudy weather even during the day can be less than 100 W / m².
Using the most common solar panels, you can convert this energy into electricity
with an efficiency of 9-24%. In this case, the battery price will be about 1-3 dollars
per watt of rated power. In the industrial generation of electricity using photocells,
the price per kWh will be $ 0.25. It is expected that by 2020 the cost will drop to $
0.15. It is reported that solar cells with an efficiency of 44% have been received in
individual laboratories in the world. In 2007, information appeared about the
invention by Russian scientists (Dubna) of elements with an efficiency of 54%, but
these highly efficient panels cannot be massively used because of their high cost,
many scientists are working on this problem.
