Backsheet Of Solar Panel

The solar backsheet plays a significant role in a solar pv panel.

Backsheet of solar panel. A solar backsheet is the last layer at the bottom of the solar pv panel and is typically made of a polymer or a combination of polymers. The illustrations from the report below show the 5 different categories of backsheet defects and their frequency. It is followed by cell side yellowing and cell side cracking. Tedlar pvf film based backsheet is the industry standard for solar backsheets.

Air side cracking on the bottom left occurs on the rear of solar panels and is the most common defect. While the backsheet contributes only 4 5 of the total cost of a solar panel the criticality of a solar panel backsheet is quite high compared to its cost contribution. Why do we need a solar backsheet in a pv panel. The panel s backsheet serves the same function that wire insulation serves in household wiring.

The impact can be significant ranging from severe brand and reputation losses to bodily harm. Less than 0 05 of tedlar based backsheets showed defects in global field inspections. A backsheet is a required insulating film in all solar photovoltaic panels. 84 backsheet manufacturers are listed below.

Types of solar panel backsheet defects. A reliable backsheet should be able to provide protection from moisture physical damage and uv rays while also minimizing the occurrence of electrical discharge and thermal. Companies involved in backsheet production a key sourcing item for solar panel manufacturers. Backsheet related failures can lead to catastrophic breakdown of panels significant power degradation and severe safety hazards.

Since 2011 dupont has conducted inspections of fielded solar modules in different geographies and climates in north america europe asia pacific and the middle east. The leader in backsheet durability over time. A solar backsheet is the last layer at the bottom of the solar pv panel and is typically made of a polymer or a combination of polymers. Most backsheets are made from petroleum based plastics.

Its primary purpose is to protect the solar panel components specifically the solar cells and wires from environmental elements such as stress or moisture which can degrade the 20 year life of solar panels. The backsheet is the outermost layer of the pv module placed at the non sunny side of it. The backsheet is typically a laminate of different polymer materials. The pv backsheet material you choose for your solar panel will have a considerable impact on how it withstands the elements and performs over the course of its lifetime.

To insulate and protect the user from shock and provide the most reliable and efficient electrical conductivity possible.