How can we increase the efficiency of solar cells?
The solar cells / solar panels are environmentally friendly, but at the moment other sources of electricity cheaper than solar energy. How can we make solar cells more efficient and cheaper?
Each solar cell has a theoretical maximum efficiency. It is a property of that cell, and not independently of the conditions that can not be higher. The most efficient to date is ~ 35%. Factoring of materials and system limitations, the maximum efficiency we have achieved is 30%. Unless we with a new combination of materials for solar cell efficiency will remain low.