When it comes to power loss, what we usually only realize is the power loss caused by equipment failure and shutdown. Another type of power loss is often overlooked, that is, the power loss caused by inefficient photovoltaic modules, which are used as the power generation of photovoltaic power plants. There are a large number of equipment, about 4,000 per MW, and a 50 MW photovoltaic power station has about 200,000 photovoltaic modules. After so many photovoltaic modules are operated for a period of time, some low power generation capacity will inevitably occur. Low-efficiency photovoltaic modules. These low-efficiency photovoltaic modules are hidden in the module string. Due to the loss amplification effect of series and parallel connection (equivalent to the short-board effect of wooden barrels), it is bound to cause the power generation loss of the entire power station, and with the passage of time, this There will be more and more low-efficiency photovoltaic modules, more and more serious, and the loss of power generation will increase.

      The loss of power generation by low-efficiency photovoltaic modules is not as strong as the power loss caused by equipment failure and deactivation. It is difficult for people to feel its existence, and it is also difficult for people to have a clear understanding of the power loss caused by it. However, this moderate power loss exists for a long time, so the power loss caused by inefficient photovoltaic modules actually accounts for the largest proportion of all power losses in photovoltaic power plants.