What are glass-glass solar panels?

In glass-glass solar panels, the solar cells are contained between two layers of tempered glass. This guarantees a very long durability. Because of their design, glass-glass solar panels have a high energy yield, last a long time and are eco-friendly. The price is higher than the alternative, glass-film panels, but the purchase pays for itself in the long run as these panels generate a lot of energy and require little maintenance.