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Why we are asking this now?
Solar energy does not require any introduction as a potential source of renewable energy. Sunlight is plenty through out the year in tropical and subtropical regions. And these regions consist all most 50 percent of total land mass in the world. So, if solar energy is harnessed efficiently along these areas, energy generation would become lot greener in future.
However, today’s solar technology has too many problems starting from capturing sunlight to storage and distribution of generated electricity. For power generation, generally, two types of technologies are used – photovoltaic and solar thermal type. And both the technologies are expensive to install. Photovoltaic cells are made of expensive silicon compounds while the thermal type system requires huge parabolic structures to concentrate heat.
