Solar energy is abduntly available but then also it is not a concentrated source of energy. Explain it.
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Answer:
Because Solar cells are not very efficient. They convert very little sunlight to energy. Also they are cost effective.
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The position of the sun is changing in a day. Therefore sun rays will not be perpendicular to the solar panel and hence a relative harvesting will be done based on the angle of incidence of the solar ray.
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