Alternative Energy Essay example
Engineering and Construction
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Photovoltaic (PV) solar cells as alternate energy sources for electricity generation Abundance of free and seemingly infinite quantity of sunlight available to the earth is a resource of energy, which has remained relatively untapped. Harnessing of this energy for conversion to electricity by photovoltaic technology is of recent origin and offers considerable potential for its commercial exploitation in the years to come, amidst dwindling resources of fossilized fuels…


Its biggest advantage is that it is virtually maintenance free and absolutely reliable, because of the absence of moving parts; it is designed for ease of assembly, use and maintenance. Its yet another significant benefit is that, it offers an option for nations to rid themselves of avoidable dependence on oil for fulfilling their gross energy needs. It is a nascent technology possessing the long term potential to create additional jobs for strengthening of economies. It does not generate hazardous waste or cause atmospheric pollution by release of gases like carbon dioxide, sulphur dioxide, nitrous oxide or mercury like many traditional forms of electrical generation do. It does not require liquid or gaseous fuel to be transported or combusted. It does not contribute to global warming, acid rain or smog. Its far reaching benefits outweigh the high initial cost of the systems. Innovations in product design in recent times have led to the feasibility of execution of maintenance of roof mounted PV systems from ground level, without taking recourse to body harnesses, ladders and cranes for accessing the roofs in compliance with the safety requirements. ...
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