If a solar panel has 20 percent efficiency that means it s capable of converting 20 percent of the sunshine hitting it into electricity.
Efficiency of photovoltaic solar panels.
The efficiency of the solar cells used in a photovoltaic system in combination with latitude and climate determines the annual energy output of the system.
Most solar panels are between 15 and 20 efficient with outliers on either side of the range.
Solar cell efficiency refers to the ratio of the power output of a solar cell to its power input while considering its surface area.
High quality solar panels can exceed 22 efficiency in some cases and almost reach 23 but the majority of photovoltaic panels available are not above 20 efficiency.
The highest efficiency solar panels on the market today can reach almost 23 percent efficiency.
It is true that solar cell efficiency directly affects the solar panel efficiency.