Advantages :
1. Cheap,
2. Only installation cost (maintenance cost is too low to mention)
3. Environment friendly (no pollution at all, green energy)
4. Renewable energy
Disadvantages :
1. No sun, no power (rainy days, cloudy days)
2. Power generation per unit surface area is low. To power a house completely by a solar panel, the surface area of the panel required would be 8-10 times of that of the house.
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