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What Is PID and How to Avoid It

Written by Tony Chang

October 26, 2020

what is solar pid

What Is PID and How to Avoid It

A solar installation for your home is a great way to future proof your energy bill against rising prices.

But to make sure your solar panels can last a long time, you need to watch out for some common solar panel defects that can ruin the overall energy production of your system.

One of such defects is PID or Potential Induced Degradation.

What Is Potential Induced Degradation?

PID is a solar cell defect caused by the high voltage potential between a solar module and ground.

The combination of long solar panel strings and grounding the panels’ aluminium frames creates a high voltage difference between solar cells and the frame, which can cause the solar cells to deteriorate due to unwanted charge carrier movements.

Since the string voltage of a rooftop solar system can range from a few hundred volts on a small roof, to a thousand volts in a large project, PID effect is a significant cause for power degradation in big rooftop installations.

What Is Anti-PID?

Anti-PID solar modules are created by selecting solar cells with PID-free design and choosing module encapsulation materials with high resistivity to prevent PID effects.

WINAICO’s solar modules are tested at 1000 V in 85°C, 85% humidity conditions and exhibit less than 5% power degradation as proof of anti-PID.

Which means WINAICO solar panels can be connected in strings without being damaged by the high string voltage, making your solar installation produce more energy for longer.

Our dedication to extensive reliability tests means WINAICO can provide the most dependable solar modules on the market.

You can be confident that your WINAICO installation will reliably generate energy throughout its expected lifetime and not be a victim of Potential Induced Degradation.

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Where to buy WINAICO Panels

Whether you are a customer looking for a beautiful and high-performing PV Array or an experienced PV installer looking to expand their product range, WINAICO is the best choice you can make. 

If you are a customer looking to find out more about installing WINAICO panels for your residential or commercial project, conatct us here to find your nearest WINAICO installer. 

If you are an installer or distributor interested in adding WINAICO to your range, contact us here and one of our sales team will be in touch. 

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