Double glass component background

What is a double glass c-Si PV module?

Recently several double-glass (also called glass–glass or dual-glass modules) c-Si PV modules have been launched on the market, many of them by major PV manufacturers. These modules use a sheet of tempered glass at the rear of the module instead of the conventional polymer-based backsheet. There are several reasons why this structure is appealing.

What is the best double-glass module?

When it comes to double-glass, Trina Solar’s double-glass module is the most sought after product in the market. As one of the first batch of companies that promote and commercialize double-glass modules, Trina Solar makes its double-glass modules, which has won industry-wide recognition for its high quality.

What is double glass PV module?

Double glass PV module is known as the ultimate solution for the module encapsulation technique. Although double glass modules have many advantages, they are not yet widely used in photovoltaic power plants, for which one important reason is the large power loss due to the transmission of light in the cell gap region.

Why is white double glass PV module more powerful than transparent?

Due to the high reflectance of white EVA, the power of white double glass module is higher than that of transparent double glass module by 2-4%. Double glass PV modules is an area of significant investigation by many companies and institutes in recent years, for example Dupont, Trina, Apollon, SERIS, MIT, Meyer Burger and Talesun.

What changes have been made in glass-glass modules?

In the case of Glass-Glass modules, an important change has been made by replacing EVA with polyolefins as an encapsulating substance. This is due to the free radicals generated during the EVA cross-link lamination process. Traditional backsheets are somewhat permeable to free radicals, but the double glass module is not.

Why do we have higher expectations on double-glass modules?

We have already realized the high shipment goal to lead the industry, now we have higher expectations on double-glass modules. At present, double-glass modules are subject to some non-technical problems, failing to make due and effective breakthrough. It is a pity.