There are many disadvantages of the solar energy. First,the initial cost.Solar panels are relatively very expensive mainly due to material cost and complexity of the design in solar energy. Second, Weather cloudy,rainy conditions Can interfere in the amount of sunlight that reaches the solar panels to light.This in turn affects the amount of energy and power that printed.Third, what about the time when there is no sunlight and How is solar energy production at night, Of course it can not be produced at night.