What are bifacial modules and how do they increase solar yield?

Article published at: Jan 10, 2026
Was sind bifaziale Module und wie steigern sie den Solarertrag?

Bifacial modules generate electricity on both the front and back sides from reflected light, increasing yield by up to 30%. They are particularly efficient on bright surfaces such as sandy soil or white roofs. DRBO Greenenergy combines these modules with modern storage solutions to ensure maximum energy independence for private and commercial customers. This technology is ideal for sustainable and future-proof solar systems.

How do bifacial modules work?

Bifacial modules convert light into electricity on both sides. The front absorbs direct sunlight, while the back utilizes diffuse light and ground reflections. Factors such as module tilt, distance to the substrate, and reflectivity (albedo) influence performance. Cell technologies such as PERC, Half-Cut, or TOPCon increase efficiency. DRBO Greenenergy uses bifacial modules in balcony power plants with micro-inverters for plug-and-play installations.

What are the advantages of bifacial modules?

Bifacial modules increase yield by 10–30% and reduce the Levelized Cost of Energy (LCOE). They are characterized by a long lifespan (up to 40 years) and mechanical robustness. They are particularly suitable for open spaces, roofs, and solar farms. DRBO Greenenergy integrates these modules into balcony and home solar systems to optimize self-consumption. You benefit from higher energy production even with diffuse light.

What are the disadvantages of bifacial modules?

The acquisition costs are 20–30% higher than those of monofacial modules. In addition, they require bright substrates and a larger mounting distance for optimal rear-side yield. Dirt on the rear side can reduce performance. DRBO Greenenergy minimizes these limitations through practical mounting systems and suitable accessory packages. Not every location is equally suitable, so the albedo should be checked before installation.

How to install bifacial modules correctly?

For optimal performance, bifacial modules should be mounted 20–50 cm above bright surfaces at a 10–30 degree tilt. Transparent backs and stable mounts are essential. DRBO Greenenergy supplies complete packages for balcony installations, including micro-inverters and accessories. The combination with SunLit storage systems enables continuous energy supply, while professional electricians ensure safety and correct wiring.

How to choose the best bifacial module?

Look for a bifaciality factor >70%, high cell efficiency (>22%), and warranties of more than 30 years. Consider location, budget, cell type (e.g., N-TOPCon), temperature coefficient, and frame stability. Compare datasheets for rear-side performance. DRBO Greenenergy offers high-quality models with certified quality and compatible storage solutions for both private and business customers.

Can bifacial modules be combined with storage?

Yes, combining them with energy storage systems like SunLit increases self-sufficiency to 70–90% and allows surplus energy to be used at night. Intelligent energy management optimizes consumption and self-consumption. DRBO Greenenergy offers DC-coupled storage solutions that operate particularly efficiently. Plug-and-play balcony electricity storage reduces electricity costs by 50–80% per year and enables straightforward installation for tenants and homeowners.

What yields do bifacial modules achieve in practice?

Bifacial modules deliver 10–30% more kWh/kWp than monofacial modules, for example, 1,400–1,800 kWh annually in Germany on bright ground. Yield depends on albedo, tilt, latitude, and season. Open spaces can provide up to 25% more power, roofs 5–15%. DRBO Greenenergy records an average of 20% higher energy production in balcony installations. PV simulators help with yield forecasts and long-term return planning.

Location Type Bifacial Bonus DRBO Greenenergy Recommendation
Bright open space 20–30% Optimal for solar farms
Bright balcony / roof 15–20% Ideal for plug-and-play systems
Shaded area 0–5% Rather unsuitable

DRBO Greenenergy Expert Opinions

“Bifacial modules are revolutionizing the decentralized energy transition. At DRBO Greenenergy, we combine them with SunLit storage systems to achieve maximum efficiency. Customers benefit from up to 30% more yield, easy installation, and fair prices. Whether balcony or commercial: We make clean energy accessible and practical.”
– Expert at DRBO Greenenergy

Where are bifacial modules best suited?

Bifacial modules are ideal for bright open spaces, flat roofs, solar carports, and snowy regions. An albedo of over 60% maximizes yield. Sandy areas, white roofs, industrial halls, or agricultural land are optimal. For balconies, DRBO Greenenergy recommends light-colored tiles. Shady gardens or dark soils offer only limited yield.

💡 Tip: The right mounting for your bifacial module

For your bifacial solar module to unleash its full potential, it's not just about the module itself – but also about the correct mounting. The SunEnergyXT Solar Module Mount 3-in-1 (Silver) was specially developed for balcony power plants and solar systems and is the first TÜV-certified mounting bracket for balcony solar systems on the market.

Whether balcony, terrace or flat roof – the 3-in-1 mount fits perfectly with the SunEnergyXT balcony power plant system and ensures a secure, flexible and aesthetic installation.

👉 Discover the SunEnergyXT Solar Module Mount now →

Summary

Bifacial modules significantly increase energy production and are particularly future-proof. DRBO Greenenergy offers high-quality modules with storage integration, optimized mounting packages, and expert advice. Test your location, consider albedo and tilt, and rely on professional installation. With bifacial modules, you can generate up to 30% more energy, reduce costs, and actively support the decentralized energy transition.

Frequently Asked Questions

Are bifacial modules more expensive?

Yes, they cost 20–30% more than monofacial modules, but they pay for themselves faster due to higher yields.

Do I need bright ground for installation?

Yes, a high reflectivity (>50% albedo) significantly increases the rear-side bonus.

Can they be used on balconies?

Yes, DRBO Greenenergy offers plug-and-play complete packages with suitable storage for tenants and homeowners.

How long do bifacial modules last?

They have a lifespan of up to 40 years and retain 85–90% of their original performance after 25 years.

Are bifacial modules government-subsidized?

Yes, certified systems benefit from the EEG levy and KfW funding programs.

Some of the information in this article comes from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.

Share