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Solar Cell

March 18, 2024

single solar cell

What is a Solar Cell?

A solar cell is the converting mechanism within a solar panel that absorbs sunlight and turns it into electricity. This physical and chemical process that occurs is called the photovoltaic effect.

What is are solar cells made of?

Solar cells are primarily made of pre-stressed glass, aluminum, and monocrystalline silicon. Glass is the outer-most layer of the cell. It’s thermally pre-stressed to increase durability and is equipped with anti-reflection technology. The internal layer is mostly monocrystalline silicon, a semi-conductive material that makes the sunlight to electricity conversion process possible. The cell is backed with a composite film and framed with anodized aluminum for extra strength.

How many solar cells are in one panel?

Between 60 and 72 solar cells make up an average sized residential solar panel. Each solar cell produces electricity individually and the panel’s wattage is reflective of the total output of all the cells.

Each solar cell’s rate of converting sunlight to electricity will determine the panel’s overall efficiency and power capacity. For example, a 425-watt panel with a 21.8% efficiency is directly correlated to the performance of each solar cell.