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On-site PID testing

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By Dr Volker Naumann; Dr Nadine Schüler; Dr Christian Hagendorf

Potential-induced degradation (PID) is still one of the main reasons for unpredictable power losses in PV power plants. Volker Naumann, Nadine Schüler and Christian Hagendorf of Fraunhofer CSP and Freiberg Instruments present an approach for quick on-site PID testing of mounted PV modules, allowing PID diagnosis and prognosis of PID-related yield losses

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Welcome to the latest edition of PV Tech Power. Installed solar power capacity already rivals nuclear power and could well surpass it by the end of 2018. Rapid improvements in solar cell technology, module configuration, system design and financial innovation have been a big driver. Increasingly, we are seeing this mammoth legacy fleet continue to benefit from technical improvements ranging from intelligent monitoring to using machine learning and energy storage to predict when charging a battery offers a better return than feeding the grid. We’ll explore a range of activities covering hardware and software, from module to market, that are helping asset owners maximise the value of solar.

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