Asian Journal of Multidimensional Research (AJMR)
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AJMR
2.
Boiling and using the required amount of water in kettles;
3.
Water heaters (Areston) must always be filled with water;
4.
Switch off unused lighting fixtures;
5.
Use of low-power consumer devices;
The above suggestions and recommendations are things that can be done in normal daily life and
can save a huge amount of electricity. Therefore, it is important to provide students with
knowledge and skills on how to save and use electricity wisely in physics classes and science
clubs. Consider light bulbs as an example. It is known that a certain part of the population still
uses incandescent lamps in the lighting system. This leads to a very large amount of electricity
consumption. Thanks to the use of modern energy-saving LED lamps instead of incandescent
lamps, we can chance comparing and contrasting examples with examples of how much
electricity can be saved can help students get a clearer picture. For example,
a 100 W incandescent lamp consumes 0.9 kWh per day for 9 hours. The cost of this energy is 0.9
kWh ∙ 295 soums = 265.5 soums. If you do this for a month, that is, for 30 days, 265.5 ∙ 30 =
7965 soums, and for a year (365 days, which is 12 months) it is 7965 ∙ 12 = 95580 soums.This
means that a single incandescent lamp with a power of 100 W consumes an average of 0.9 ∙ 365
= 328.5 kW per year. Now, with the use of 3 incandescent lamps with a power of 100 W, this
figure will increase threefold. That is 328.5 kWh ∙ 3 = 985.5 kWh, the cost of this energy is
985.5 kWh ∙ 295 = 290722.5 soums. This means that an average of 3 lamps in a single lighting
system consumes 290,722.5 soums of electricity per year at home. If we take this indicator in
relation to the households of the Republic, a quantitative measure of the amount of electricity
consumed can be seen in the consumption of a very large amount of electricity.
Now
let's
look
at
the
power
consumption
of
energy-saving
LED
lamps:
A single energy-saving LED lamp with a power of 20 W consumes 0.18 kWh of electricity for 9
hours a day.The average cost of this electricity is 0.18 ∙ 295 = 53.1 soums per day,53.1 ∙ 30 =
1593 soums per month and 1593 ∙ 12 = 19116 soums per year.That is, a 20 W LED energy-
saving lamp consumes 64.8 kWh per year, 64.8 ∙ 295 = 19116 soums for electricity. Now, if we
compare this figure with a 100 W incandescent lamp, 328.5 kWh – 64.8 kWh = 263.7 kWh plus
energy consumption. The cost of this excess electricity is 77,791.5 soums. It turns out that,the
use of energy-saving LED lamps in the lighting system allows us to save a significant amount of
electricity. By explaining this information to the students in detail, it is possible to compare the
possibilities of efficient use of electricity. At the same time, students have the opportunity to
develop a culture of correct and rational use of electricity.
Another way to achieve energy efficiency is to develop and improve the use of alternative and
renewable energy sources. The practice of introducing elementary concepts of alternative and
renewable energy sources to students as new teaching materials in physics classes and study
circles is being introduced. At that time, the use of solar energy, which is one of the types of
energy, is now considered as one of the main issues in all developed countries.Because while
solar energy is an inexhaustible source of energy, it is also an environmentally friendly, energy-
efficient energy source.
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