Featured in Yes, PV can – 10-2014

Enough of false potentials

Inverters: Many investors are afraid of potential induced degradation (PID) when they use inverters without a transformer. However, last year Omron presented a device with which the negative pole can be grounded, preventing degradation. Does it make a difference?

By

Michael Fuhs

01 Oct 2014

Currently PID has the potential to become a controversial topic. Omron has jumped on this bandwagon. The company offers inverter technology that it extols as an “innovative solution to prevent PID.” PID stands for potential induced degradation. The effect can occur with standard crystalline modules if the solar cells have a negative voltage in relation …

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