microcracks in solar cells

Do not let micro-cracks in Solar Panels become macro troubles

The little splits– microcracks– are one of the significant reasons for solar component destruction and failing.

Solar cells are made from a super-thin layer of silicon (around 150 micrometres), making them extremely fragile. That’s why solar components receive a durable tempered external glass covering that shields them from the atmosphere. Still, problems can take place, bypassing that glass covering. These microcracks are not visible to the human eye.

An electroluminescence (EL) examination is called for to find microcracks in solar cells.

An installer’s body weight can cause problems if he is careless. Stooping or strolling on a photovoltaic panel might not break the safety glass. Still, it can develop small fractures in the cells beneath, triggering unnoticeable damages and also starting the downhill spiral to fading performance. These small splits– microcracks– are one of the main factors for solar module destruction and even failure.

The leading causes of microcracks are:


Once in a while, solar components come from the factory with microcracks. A reliable manufacturer that performs stringent quality assurance testing does not be ship modules with microcracks.

Mechanical loads and inappropriate installing:

A solar component is designed to hold a mechanical load of up to 5,400 Pa. Clamping should be done very carefully. If an installer makes use of the wrong place for clamping, cells can potentially result in not just microcracks but severely damaged glass.

Installer mistake:

Negligent installers might walk on the component surface throughout installation without realizing they can trigger microcracks. Carelessness can seriously deteriorate panel performance and also lead to disappointed consumers.

Most solar panel manufacturers utilize a production process that makes them smaller, more powerful, and also more versatile. All solar modules undergo EL testing to guarantee they’re devoid of microcracks. Yet, it is essential installers adhere to manufacturer install installation standards to make sure robust, safe, and secure installations.

When a cell is broken, its power output reduces a little extra annually. Over time, the entire panel becomes much less efficient and also reveals the impacts of long-term damages.