26/07/2024
(PV) modules are a type of solar panel that can generate electricity from both the front and back sides of the module. This technology has gained popularity in recent years due to its increased energy production compared to traditional monofacial modules.
The mechanism of involves several key components and processes:
✅️ Front-side solar cells: Bifacial PV modules contain solar cells on both the front and back sides of the panel. The front-side solar cells are typically made of silicon and are similar to those found in traditional monofacial modules. These cells convert sunlight into electricity through the photovoltaic effect.
✅️ Back-side reflectors: The back side of a bifacial PV module is equipped with reflectors that help direct sunlight onto the back-side solar cells. These reflectors can be made of various materials, such as glass or aluminum, and are designed to maximize the amount of sunlight that reaches the back-side cells.
✅️ Albedo effect: In addition to direct sunlight, bifacial PV modules can also generate electricity from indirect sunlight that is reflected off surrounding surfaces, such as the ground or nearby buildings. This phenomenon, known as the albedo effect, allows bifacial modules to capture more sunlight and produce more energy than monofacial modules.
✅️ Mounting system: Bifacial PV modules are typically mounted on a raised structure, such as a ground-mounted rack or a rooftop mounting system, to allow sunlight to reach both the front and back sides of the panel. The mounting system must be designed to optimize the angle and orientation of the modules for maximum energy production.
✅️Electrical connections: The front and back-side solar cells in bifacial PV modules are connected in series or parallel to generate electricity. These electrical connections are typically made using busbars and interconnectors that allow the flow of current between the cells and to the external electrical system.