4 FAQs about There are many small lines on the back of the photovoltaic panel

What are the white lines on photovoltaic modules?

The white lines on photovoltaic modules serve one of three important purposes, depending on whether they're the gaps, the fingers or the busbars. The gap lines are spaces between the solar cells, through which you can see the panel's white backing. The gaps are necessary to allow for thermal expansion of the cells when the panels heat in the sun.

What are the gap lines on solar panels?

The gap lines are spaces between the solar cells, through which you can see the panel's white backing. The gaps are necessary to allow for thermal expansion of the cells when the panels heat in the sun. Both the fingers and the busbars are electrical conductors.

Why do PV panels have white lines?

The answer lies in the way PV panels are designed and constructed. The white lines on photovoltaic modules serve one of three important purposes, depending on whether they're the gaps, the fingers or the busbars. The gap lines are spaces between the solar cells, through which you can see the panel's white backing.

What are the parts of a solar panel?

Most panels include solar cells, tempered glass, encapsulant, a backsheet, a metal frame, an inverter, and a junction box. In the sections ahead, we'll walk through each part so you can better understand how solar panels work and why they're built to last for decades.

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