Electricity isall around us. We use electricity to light up our homes, schools, hospitals,factories, and all places where a man works. We use electricity every minute ofevery day.
Because the demand of electricity in the country is graduallyincreasing, the energy reserves and generating plants couldn’t fully satisfythe needs of the consumers. This leads to power shortage, which is a majorproblem in the electric industry. To overcome this problem, alternative sourcesof energy are used to supply electricity, one of which is sunlight.Solar energy isa radiant light and heat that is produced by the sun. One way to produceelectricity from solar energy is using the photovoltaic cell. A photovoltaiccell is a device used to convert the energy of light directly into electricity.These photovoltaic cells are the building blocks of photovoltaic modules, knownas the solar panels. Solar panels are effective when it faces perpendicularlyto the rays of the sun.
Commonapplications of these solar panels are solar powered cars, toys, calculators,roadside telephone call boxes, residential lighting and solar powered streetlights,which is the primary subject of this topic.Solar poweredstreetlights provide a high quality, sustainable lighting solution for peopleespecially in areas who don’t have access to the conventional electricity grid.During the day, the solar panel converts solar energy into electrical energy thatis stored in a battery. When the night falls, the battery discharges, releasingenough power to light a road. Since thesolar powered lights do not consume any conventional energy, its carbonemissions during use are zero.
In 2015, aneconomic feasibility study of solar powered streetlight s was conducted by thestudents of the Department of Telecommunication and Electronic Engineering inHajee Mohammad Danesh Science & Technology University, Dinajpur,Bangladesh. The study focuses on energy efficiency with the replacement ofexisting street lights with solar power as the source of energy. The studyproposed to replace lighting of city roads in Bangladesh with this more efficientlight source and solar PV modules for energy generation.This topic isabout creating a cost effective and cost efficient solar powered LED streetlights. The solar powered street lights’ charging rate will be considered todetermine the amount of charge the panel can accumulate in 12 hours.
This will not only help the government lessenthe expenses of the city for the electricity consumption, it will also improvethe attractiveness of a street without compromising the lumen output of thelamp.