Do photovoltaic inverters need to be protected against corrosion

What is galvanic corrosion in solar PV?

The life of a solar PV system may be seriously effected by galvanic corrosion. The type of metal and the atmospheric conditions such as moisture and chlorides can cause serious structural failures in racking and mounting components. Galvanic Corrosion and Protection in Solar PV Installations | Greentech Renewables Skip to main content menu

Can solar PV racking corrosion occur?

The metals in solar PV racking and mounting systems can be faced with corrosion if wrong metals are used together. The life of a solar PV system is 25 years, therefore system installers must target a similar life span for the racking materials. How does galvanic corrosion occur?

How do I protect my solar panels from galvanic corrosion?

For example, when installing solar panels onto mounting rails, some thought should go into preventing galvanic corrosion between dissimilar metals. A good installer will use an anti-seize compound on the fasteners or an anti-corrosion coating designed for dissimilar metals.

How to prevent corrosion in PV systems?

The installer has to be careful in choosing the right material. We usually suggest using anodized components to prevent corrosion for the PV systems that are near ocean (salt conditions). Below is a list of best practices for corrosion prevention: Use one material to fabricate electrically isolated systems or components where practical.

Are solar panels corrosion resistant?

If you live in a coastal or high-humidity environment, this one’s for you. IEC 61701 is an international standard that addresses the resistance of solar panels to salt mist corrosion. It involves subjecting the modules to prolonged exposure to a salt mist environment to assess their corrosion resistance.

What happens if a solar panel is carried incorrectly?

A quality installer knows that carrying and handling a solar panel incorrectly can cause micro-cracks , resulting in moisture ingress into the panel over time and deterioration to the cells or corrosion on the interconnecting conductors.