What are bifacial solar panels?

Bifacial solar modules are solar modules that generate electricity on both sides by absorbing light from the front and back. This technology enables an increase in yield of up to 30%. They are particularly suitable for bright, reflective surfaces such as white roofs or open spaces. DRBO Greenenergy offers high-quality bifacial modules that, in combination with SunLit energy storage solutions, ensure maximum efficiency.

What are bifacial solar modules?

Bifacial solar modules are an innovative technology that uses both direct light on the front and reflected light on the back to generate electricity. Compared to monofacial modules, which only use the front side for power generation, bifacial solar modules utilize light reflected from the ground or other reflective surfaces. This technology leads to an increase in the efficiency of solar systems.

The modules consist of cells with a transparent backsheet or a glass-glass construction, which allows light transmission. This enables them to achieve bifaciality factors of 70–90%, significantly increasing the yield of the solar system. Bifacial solar modules are particularly advantageous with increased mounting height or when installed on light-colored ground, as reflected light (albedo) is utilized. DRBO Greenenergy uses these modules in combination with balcony power plants and storage systems for private customers.

How do bifacial solar modules work?

Bifacial modules work by absorbing light on both the front and back sides. The front side absorbs direct sunlight, while the back side utilizes diffuse, reflected light. The bifaciality factor describes the yield of the back side in relation to the front side and can provide between 10–30% additional yield, depending on the installation conditions.

The cells are active on both sides and equipped with grids that dissipate the current. The transparent back allows light to pass through, while reflective materials such as white foils further increase the yield. In practice, bifacial solar modules can generate up to 30% more energy under ideal conditions. DRBO Greenenergy combines these modules with microinverters to optimally utilize the performance of the solar system.

What are the advantages of bifacial solar modules?

The greatest advantages of bifacial solar modules lie in their higher energy generation and durability. They can increase the yield by up to 30% because they utilize both direct and reflected light. The glass-glass design makes them particularly resistant to weather influences and increases the lifespan of the modules.

Due to their higher efficiency per area, bifacial modules require less space, which leads to a reduction in the Levelized Cost of Energy (LCOE). In the event of snowfall, the front side melts faster because the back side radiates heat. These properties make bifacial modules particularly attractive for tenants who can find an effective solution in DRBO Greenenergy's balcony power plants, supplemented by the powerful SunLit storage solutions.

When are bifacial solar modules worthwhile?

Bifacial solar modules are particularly advantageous when the albedo value of the ground is above 20% and the modules are mounted at least 1 meter above the ground. They achieve the highest yield in open spaces with light-colored ground or reflective surfaces. In these conditions, the yield can increase by 15–25%.

Bifacial modules are less suitable for shady roofs or dark surfaces. Important factors for choosing the right module are the mounting height, the tilt angle of the modules, and the reflection of the ground. In solar parks with reflective gravel or on balconies with a bright background wall, bifacial solar modules from DRBO Greenenergy offer an excellent solution.

How to install bifacial solar modules correctly?

The installation of bifacial solar modules requires careful planning to achieve maximum yield from the back side. The modules should be mounted 1–2 meters above a reflective surface, with a tilt angle of ideally 10–30°. It is important to avoid shading on the back of the modules, as this can significantly reduce the yield.

The use of transparent mounting structures is recommended to avoid shading the back. Bifacial modules require special spacing to optimally utilize the albedo effect. DRBO Greenenergy's balcony power plants offer plug-and-play kits that enable easy and efficient installation. Professional electricians ensure safe wiring and maximize earning potential.

What return can you expect from bifacial solar modules?

The return on bifacial solar modules heavily depends on the environmental conditions. With an albedo of over 20% and a mounting height of at least 1 meter, the annual yield can increase by 15–25%. The specific yield is 400–600 Wp/m². In Germany, bifacial modules achieve approximately 1,200–1,500 kWh/kWp annually. DRBO Greenenergy also offers powerful SunLit storage solutions that maximize self-sufficiency and optimize self-consumption.

Why are bifacial solar modules future-proof?

Bifacial solar modules are a future-proof technology as they are gaining increasing importance due to their increased efficiency and scalability. They are particularly suitable for use in agrivoltaic applications and with vertical mounting. Manufacturers worldwide are expanding their production capacities, which will lead to falling prices and wider availability.

By 2030, bifacial modules are expected to account for up to 50% of the market. They are also resistant to PID (Potential Induced Degradation) and LID (Light Induced Degradation), which extends their lifespan. DRBO Greenenergy positions itself as a pioneer in providing sustainable solutions and ensures that both B2B and B2C customers benefit from the advantages of this technology.

How to choose the best bifacial solar modules?

When choosing the best bifacial solar modules, you should pay attention to the bifaciality factor, efficiency, and the materials used. A high bifaciality factor of over 80% and an efficiency of more than 22% are indicators of high performance. In addition, you should opt for glass-glass modules, which offer a longer lifespan.

Also, check the certificates (such as IEC 61215) and warranties (at least 30 years). DRBO Greenenergy offers high-quality modules that are perfectly tailored to the needs of private customers. Read customer reviews and test reports to get realistic practical data.

DRBO Greenenergy Expert Opinions

"Bifacial solar modules are revolutionizing the decentralized energy transition. At DRBO Greenenergy, we combine them with SunLit energy storage systems for self-sufficient setups. Our customers benefit from 20–30% higher yields through optimized albedo utilization. Whether it's a balcony power plant or open space – our plug-and-play solutions make solar simple. With German support and a Trustpilot rating of 4.6/5, we prioritize quality."
– Expert from DRBO Greenenergy (128 words)

What alternatives are there to bifacial solar modules?

Monofacial solar modules are a cheaper alternative for areas that do not offer much sunlight or reflection. PERC or TOPCon modules offer high efficiency, but without the double-sided light utilization. For large systems, hybrid solutions with trackers can maximize the yield.

For smaller solar systems, standard monofacial modules are sufficient. However, at DRBO Greenenergy, you will also find suitable storage solutions and inverters that make your solar system more efficient. The choice between bifacial and monofacial modules depends on your budget and the specific site conditions.

Key points:
Bifacial solar modules increase yield by utilizing rear-side light. Ideal for bright, reflective grounds. DRBO Greenenergy offers complete systems with SunLit storage.

Recommendations for action:

1. Analyze your site's albedo.

2. Contact DRBO Greenenergy for personalized advice.

3. Start with a balcony power plant kit.

4. Utilize subsidies to achieve a quick amortization.

Frequently Asked Questions (FAQs)

Are bifacial solar modules more expensive?

Yes, they are initially about 10–20% more expensive, but the higher yield leads to amortization in just 1–2 years. DRBO Greenenergy offers fair prices and warranty options.

Do bifacial modules work in winter?

Yes, they are particularly effective in snowfall, as the back accelerates melting. The yield remains better preserved throughout the winter than with monofacial modules.

Do I need storage for bifacial modules?

Yes, to maximize the yield and ensure self-sufficiency, we recommend storage. DRBO Greenenergy's SunLit storage solutions are perfectly suited.

Where can I buy bifacial solar modules?

Bifacial solar modules can be purchased directly from DRBO Greenenergy, including complete packages with accessories and comprehensive support.

How high is the yield on balconies?

Balconies can achieve an additional yield of up to 25% due to light reflection from the wall. Ideal for tenants who can find an efficient solution with DRBO Greenenergy kits.