Why use Double Glass Panels?

Why use Double Glass Panels?

Solar panels normally comes with glass in front and plastic back-sheet at the rear. These are single sided glass panels that has frames to support the total structure. In recent years, manufacturers have come up with double glass panels. These are panels that has another layer of glass in the back rather than the plastic back-sheet.

There are a number of advantages of using these double glass panels.

Note that conventional panel (shown on the right hand side of the diagram above) has only a back-sheet that is made of plastic. The Double Glass panel (shown on the left hand side of the diagram above) as another layer of glass at the back. This gives the panel additional strength, protects and cells from micro cracks and extends the life.

Double glass panels have better protection against higher temperature, better acid and alkali resistance, better salt mist resistance; making it to be the most suitable for coastal area usage. On the other hand, they also have longer life. Double glass panels have a life of 30 years compared to 25 years of conventional back-sheet panels.

Double glass panels have a fire class A rating compared to fire class C rating of conventional back-sheet panels. The pictures above clearly shows the fire resistance superiority of double class panels.