New method to measure cell voltages in operational PV modules

Scientists in Japan have proposed a new model to estimate cell voltages in solar modules by irradiating the cells with a weak modulated laser light. The method could be used to detect hot spots and other panel-degradation issues, such as potential induced degradation (PID) peeling, cracking, and poor contacts.Scientists at Japan's Teikyo University have proposed a new method to quantitatively estimate voltage cells in operational PV modules. The new model - which the researchers describe in A proposal of a procedure to estimate a standard line for contactless estimation of a solar cell voltage ...

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