PV panels, or photovoltaic panels, are devices designed to convert sunlight into electricity. Widely used in residential, commercial, and industrial settings, they serve as a reliable source of renewable energy. There are two primary types of PV panels: polycrystalline and monocrystalline.
Polycrystalline panels are constructed from multiple silicon fragments that are melted together, making them less expensive to produce than monocrystalline panels. They are often employed in large-scale installations. However, their efficiency is generally lower than monocrystalline panels, resulting in less energy production for the same surface area.
Conversely, monocrystalline panels are created from a single silicon crystal. While their production costs are higher than polycrystalline panels, they boast greater efficiency. This higher energy yield for the same surface area makes them an ideal choice for smaller installations where space is limited.
TOPCon, a new technology in monocrystalline panel production, utilizes passivated emitter and rear contact (PERC) techniques to enhance panel efficiency. By adding a layer of material to the panel's backside, PERC technology captures more sunlight passing through the front. This innovation can increase panel efficiency by up to 25%, making it a promising advancement in solar energy's future.