Study on the Causes and Countermeasures of Power Loss of Photovoltaic Modules

In this paper, major causes of photovoltaic modules power lose are divided into two basic categories during encapsulation, the optical power lose and electrical power lose. The effect of encapsulating materials on the power lose of photovoltaic modules is analyzed by comparative test. The result shows that these some encapsulating materials have a great effect on the photovoltaic power loss. Calculation of electrical power loss is carried out in this paper. It is shown that the power loss of the interconnection solder ribbon plays a dominant role in electrical power loss