Solar cells, commercially referred to as photovoltaic (PV) cells, are highly sophisticated optoelectronic devices prepared for directly converting sunlight into electrical energy. When these cells are interconnected in series or parallel, they produce a PV module. This helps the module achieve levels of current, voltage, and power output that are required for various applications. Depending on the design by the PV module manufacturers, a PV module has 60, 72, or 96 cells.
Now, PV modules form an essential part of any photovoltaic system. When two or more modules are connected, they become a string of modules when connected in series. Strings can be connected further in parallel to become a larger unit, which is known as a PV array. This array can generate the desired energy output for specific power requirements.
What is a PV Module?
A PV (Photovoltaic) module, commonly referred to as a solar panel, plays a crucial role in harnessing solar energy to generate electricity. These modules are comprised of numerous solar cells arranged in a grid pattern. The cells are primarily made from silicon, a semiconductive material that is highly responsive to sunlight.
When sunlight strikes these cells, it triggers the photovoltaic module, a process that converts light energy into electrical energy. This phenomenon occurs because the semiconductive material releases electrons upon exposure to sunlight, creating an electric current. The collected electrical energy can then be used to power various applications, ranging from small household devices to large industrial systems.
How Do PV Modules Work?
Photons are tiny particles that carry sunlight. When a photon contacts a semiconductive material, it can either bounce off, pass through or be absorbed. When enough photons are absorbed, the substance can release some electrons from the sunlight. These liberated electrons have a negative charge, resulting in a charge difference between the front and back of the cell. This discrepancy creates a voltage potential between the positive and negative particles, much like the terminals of a battery. Conductors absorb electrons and transport them through a circuit, generating electrical power.
Basic Structure of a PV Module
A PV (Photovoltaic) module is a module created to convert sunlight into electrical energy, commonly termed a solar panel. The following paragraphs describe its essential components and how it is fabricated:
Solar Cells: The main components of a PV module are the solar cells that, by composing silicon, are responsible for the conversion of sunlight to electricity through the photovoltaic effect. Then solar cells are arranged in a matrix; the usual configurations are 60, 72, or 96 cells per module, depending on the wanted power output.
Encapsulation: It is necessary to protect fragile solar cells with some form of encapsulation. Usually, the solar cells are embedded within ethylene-vinyl acetate. This layer is meant to guard the cells against humidity, dirt, and mechanical impacts.
Front Cover: Normally, high-transparency toughened glass forms the front cover of the module. This glass is structured to permit the most significant degree of sunlight while protecting the cells from environmental variables like hail, wind, and snow.
Back Sheet:The back sheet covers the back side of the module and is typically constructed out of a rugged, weatherized material. It protects the module's components from environmental stress and electrical insulation.
Frame:The module has a strong aluminum frame, providing mechanical robustness while handling, mounting, and installing. It also acts as an edge protector for the glass and back sheet.
Junction Box: Houses the electrical connections and diodes in its interior; it is fastened on the back of the module structure. This allows the module to be connected safely and effectively to the rest of the PV system while preventing reverse current flow that can cause damage to the cells.
Interconnections: The solar cells housed by the module are interconnected either in parallel or series configurations using conductive materials. These help to ensure proper electricity flow and contribute to the module's voltage and current features.
Learn: How Solar Panels Reduce Your Electricity Bills
Bypass Diodes: In most cases, bypass diodes are assembled in the junction box so that power loss can be prevented when there is partial module failure or shading. Such diodes take the current past the shaded/damaged cells, ensuring the module's performance.
Each one of these elements is of paramount importance in making sure the PV module works appropriately and reliably. What they do is work together, forming a solid network that can convert sunlight into electricity, which produces clean and renewable energy.
Types of solar PV Modules
P - Series Solar Module: Polycrystalline solar modules, made from multiple silicon crystals in each cell, account for 50% of global module output. These cells convert sunlight into electric current by energizing electrons at the PN junction. Ideal for residential rooftops, these modules feature a simple frame for easy installation
- Polycrystalline Module Series
- Available In 60 & 72 Cell Variants
- 260W – 335W Modules
- Also Available In Smaller Variants of 30W-250W
- 1500v System Voltage For Longer String Lengths
- PID & Salt Mist Corrosion Resistant
- IEC & BIS Compliant Modules
X - Series Solar Modules: The X Series Modules are more efficient and generate more power in smaller spaces with fewer panels. X Series Modules provide multiple benefits, including higher voltage, superior aesthetics, high efficiency, and increased power and energy.
- Bifacial, Twin Peak, High Voltage Modules
- Highest Efficiency
- Higher Outputs
- Maximized Savings
- IEC Compliant
G - Series Solar Modules: G Series modules use a glass-glass design, enhancing durability and reducing microcracks. They offer longer service life and higher electricity generation, providing stable green electricity for decades.
- Standard Variants of 40, 60 & 72 Cells
- Customized BIPV Solutions (Building Integrated Photovoltaics)
- Lower Degradation Rates
- Better Lifespan than Standard Modules
- IEC Compliant
Why Choose Contendre Solar?
For many strong reasons, Contendre is a lending solar PV module manufacturing company in Maharastra, provides a wide choice of solar PV modules that are tailored to satisfy different energy requirements, all while maintaining a strong commitment to innovation and quality. This is the reason you
- Advanced Technology: Contendre Solar integrates cutting-edge technology in all its products, ensuring high efficiency and reliability. Our modules, including the P-Series, M-Series, X-Series, and G-Series, leverage the latest advancements to maximize energy production.
- Quality and Durability: Our modules are built to last, featuring robust construction and materials such as glass-glass designs for enhanced durability and reduced degradation.
- High Performance: Contendre Solar modules deliver exceptional performance with high-efficiency ratings and superior power output. Whether for residential rooftops or large-scale commercial installations, our modules provide maximum energy yield to optimize your investment.
- Environmental Commitment: By choosing Contendre Solar, you contribute to a cleaner and greener future. Our modules enable sustainable energy generation, reducing carbon emissions and dependence on fossil fuels.
- Customer Satisfaction: We prioritize customer satisfaction by offering reliable products backed by comprehensive support and service. From initial consultation to installation and beyond, Contendre Solar ensures a seamless experience for every customer.
Choose Contendre Solar for a reliable, efficient, and sustainable future
Conclusion
Solar PV modules, such as Polycrystalline, Monocrystalline, Thin-Film Solar Modules, Bifacial Solar Modules etc play a crucial role in harnessing solar energy to generate electricity. These modules convert sunlight into clean and renewable energy, making significant contributions to environmental sustainability. Whether for residential, commercial, or industrial applications, solar energy offers a viable solution to reduce carbon footprints and achieve energy independence.
