Category: Solar Panels

Bifacial modules collect light on both sides. They are particularly effective above reflective surfaces such as snow, light-coloured ground or water and can increase the total energy yield by using reflected light on the rear side.

Full-black modules provide a uniform, elegant appearance and are popular on visible residential roofs. Their dark surfaces can become slightly warmer than modules with lighter components, which may marginally reduce output at high temperatures. The electrical performance ultimately depends on the cell technology and the specific module design.

N-type modules generally offer higher efficiency, better performance at high temperatures and lower light-induced degradation. P-type modules are established, widely available and often less expensive. The best choice depends on available roof area, price and the module’s overall quality.

Higher efficiency means that more electricity can be generated from the same roof area. This is particularly valuable where space is limited or solar irradiation is lower. Efficient modules allow a larger generator capacity on a restricted area and can therefore improve yield and profitability.

PERC (Passivated Emitter and Rear Cell) technology adds a passivation layer to the rear of a solar cell. This reflects unused light back into the cell and reduces electrical losses, improving efficiency and energy yield.