The working principle of double-glass solar panels, also known as bifacial or glass-glass solar panels, is based on the photovoltaic (PV) effect. This effect is a process by which solar cells convert sunlight into electricity. In double-glass solar panels, solar cells are sandwiched between two layers of glass, which provide protection and support while allowing light to pass through. This unique design allows the panels to generate electricity from both the front and rear sides, resulting in increased efficiency and energy production.
“Passivated Emitter and Rear Contact” solar cells, known as PERC solar cells, are becoming more common today as an option for making solar panels. PERC solar cells are modified conventional cells that enable the cells to produce 6 to 12 percent more energy than conventional solar panels.