Solinved

Solar energy technologies are constantly evolving. Today, new-generation systems are available that generate energy not only from the front of the panel but from both sides. This technology is called a "Bifacial Solar Panel."

Solinved, with its bifacial (double-sided) panel solutions developed with the goal of high efficiency, provide 15–30% more energy production compared to traditional panels.

In this article, we will examine in detail how bifacial solar panels work, how they increase energy efficiency, and how Solinved optimizes this technology.

What is a Bifacial Solar Panel?

The word "bifacial" means "double-sided." While traditional panels absorb sunlight only from their front surfaces, bifacial panels generate electricity by receiving light from both their front and back surfaces.

This way, not only the direct light but also the light reflected from the ground (the albedo effect) contributes to energy production.

Solinved's bifacial panels are both durable and highly efficient thanks to their high-quality glass-glass structure.

How Do Bifacial Panels Work?

Front Surface: Generates electricity by capturing direct sunlight.

Back Surface: Collects light reflected from the ground or the surrounding environment. This light creates a secondary energy generation source on the back of the cells.

Double-Layered Glass Structure: Thanks to the transparency of both the front and back surfaces, both sides of the panels are active.

Increased Energy Efficiency: Overall, 10% to 30% higher energy production is possible compared to conventional panels.

Factors That Increase the Energy Efficiency of Bifacial Panels

1. Reflective Ground (Albedo Effect)

The amount of light reflected from the ground directly affects the panel's efficiency. White pebbles, light-colored ground, or snow increase reflection, allowing the back surface to receive more light.

Solinved recommendation: When selecting the panel installation area, a highly reflective surface should be preferred.

2. Panel Height and Tilt Angle

As the panel's height from the ground increases, the rear surface's "view" angle of the sky increases, resulting in more reflection. Furthermore, the optimal tilt angle ensures optimal reception of both direct and reflected light.

The Solinved engineering team performs custom installation simulations for each project to determine the ideal angle and height.

3. Double-Glass (Glass-Glass) Design

The double-glazed structure used in Solinved's bifacial panels provides high transmittance on both the front and back surfaces. This structure also protects the panel from moisture, UV rays, and environmental influences.

The result:

• Longer lifespan (25–30 years),
• High mechanical durability,
• Minimum performance loss.

4. High-Efficiency Cell Technology

The cells used in Solinved bifacial panels feature PERC (Passivated Emitter Rear Contact) or TOPCon (Tunnel Oxide Passivated Contact) technology. These cells provide high conversion efficiency by absorbing more light.

Panel efficiency: Can reach values ​​above 21%.

5. Temperature and Light Intensity Sensitivity

Bifacial panels experience less performance loss at high temperatures. This is particularly advantageous in hot climates like Turkey.

Solinved panels operate with high efficiency even in summer thanks to their low temperature coefficient.

Special Features of Solinved Bifacial Panels

• Double-Surface Energy Generation: Generates more electricity by utilizing both direct and reflected light.
• Glass-on-Glass Construction: Durable, long-lasting, and aesthetically pleasing.
• High-Efficiency Cell Technology (TOPCon/PERC): Conversion efficiency exceeds 21%.
• PID (Potential Induced Degradation) Protection: Minimizes performance loss.
• Long Lifespan and Warranty: Performance guaranteed for up to 30 years.
• Solinved Compatibility: Full integration with smart inverter, battery, and solar driver systems.

Where are Bifacial Panels Used?

1. Terrain-Type Solar Power Plants (SPPs): In systems installed in large open areas, maximum efficiency is achieved from the rear surface due to the ability to install them above the ground.

2. Commercial and Industrial Roofs: In large-scale facilities, the reflective properties of the roof provide high energy gain.

3. Snow or Sand Surfaces: Production increases significantly on white or light-colored surfaces thanks to the albedo effect.

4. Solar Agriculture Applications: Offers the advantage of bifacial production in systems that combine agricultural irrigation and energy production.

5. Solar Charging Stations: When used with Solinved Charge, energy production and storage efficiency are increased.

Solinved Recommendations for Increasing Energy Efficiency with Bifacial Panels

• Choose a Floor with a High Albedo Value: A light-colored floor can increase panel efficiency by up to 10%.
• Correct Angle and Mounting Height: The Solinved engineering team calculates specific angles for each project.
• Smart Inverter Integration: Solinved's MPPT-enabled smart inverters optimize bi-directional generation.
• Integration with Energy Storage Systems: Excess energy produced can be stored in Solinved lithium batteries.
• Periodic Cleaning and Maintenance: Cleaning both the front and back surfaces maintains efficiency.

Double-Faced Energy Efficiency with Solinved

Solinved operates on the principles of high efficiency, durability, and sustainability in solar energy.
Bifacial panel solutions not only produce more energy but also provide long-term investment advantages.

Thanks to Solinved's integrated system approach,:

• Panels (Bifacial + TopCon)
• Smart Inverters (MPPT supported)
• Lithium Battery Systems
• Solar Drives and Charging Stations

work in perfect harmony.

The result:

• More energy,
• Lower costs,
• Longer-lasting systems.

FAQs (Frequently Asked Questions)

1. How efficient are bifacial solar panels compared to single-faced panels?
With proper installation and suitable substrate selection, they produce 15–30% more energy.

2. Are bifacial panels suitable for all regions?
Yes, but higher efficiency is achieved in areas with reflective surfaces (snow, light-colored soil, concrete).

3. What is the lifespan of Solinved bifacial panels?
They have an average performance warranty of 30 years.

4. Does contamination of the back surface affect efficiency?
Yes, regular cleaning and maintenance maintain efficiency.

5. Can bifacial panels be used for energy storage?
Yes, Solinved can be integrated with lithium battery systems to store excess energy.