Also called Photovoltaic (PV) Modules, are made of solar cells. A solar cell is THE electricity generating component of a solar power system.
There are various types, sizes and qualitiies of solar panels available depending on type and quality of solar cells used. Three most common types of solar cells are:
• Amorphous Silicon
Based on climatic conditions, poly-crystalline solar panels are well suited for use in Karachi. When compared with the other types of PV modules of same efficiency, poly-crystalline modules are the least expensive. Typical service life of a good quality solar panel is usually more than 25 years.