Bifacial Solar Panels generate power from both the front and the rear side. In projects with suitable reflectivity and sufficient installation clearance, the additional yield typically ranges from 5% to 25%. These bifacial Solar Panels are particularly attractive for ground-mounted solar plants, highly reflective environments, and commercial projects with sufficient rear-side irradiance.
Bifacial Solar Panels use a cell structure that can generate electricity from both the front and rear side. Unlike conventional monofacial solar panels, they capture not only direct irradiation on the front, but also reflected light on the rear side. This allows bifacial solar panels to deliver additional yield under suitable conditions.
In a bifacial solar panel, both the front and rear side contribute to power generation. In addition to direct sunlight on the front, the rear side can also make use of light reflected from the ground, the roof surface or the surrounding environment.
That is why the value of such a solar panel depends not only on nominal power, but also on installation height, surface reflectivity and overall system layout.
Bifacial Solar Panels are not automatically the best choice for every project. What matters is whether enough reflected light reaches the rear side, whether installation height is sufficient, and whether the system layout actually allows useful rear-side irradiance.
Ground-mounted projects usually offer more space, wider row spacing and greater installation height. This allows the rear side to benefit much more effectively from reflected light.
Snow, light-coloured concrete, white gravel and other bright surfaces reflect more light onto the rear side of the solar panel. In these situations, a bifacial solar panel can make far better use of its strengths.
Carports, canopies and certain commercial structures often provide more ground clearance and a more open rear side than standard roof-parallel systems. This frequently makes them better suited to bifacial Solar Panels.
A commercial roof is not automatically a sensible application for bifacial solar panels. What matters is whether enough usable light actually reaches the rear side.
On many residential roofs, the extra benefit of bifacial Solar Panels is relatively modest. This is usually not due to the solar panel itself, but to the site conditions.
The yield gain from bifacial Solar Panels is not a fixed value, but depends strongly on the installation scenario. In practice, the performance uplift is often around 5% to 25%. In individual projects with high reflectivity and an optimised structure, it can be even higher.
Reflectivity and installation height are often limited. The bifacial effect is present, but usually remains an incremental benefit.
With tilt-mounted systems, light-coloured roof surfaces or a more favourable layout, rear-side output can be utilised much more effectively.
More space, better reflectivity, and optimisable tilt angle and row spacing make ground-mounted solar particularly suitable for bifacial Solar Panels.
Bifacial Solar Panels are particularly attractive when higher energy yield and stronger long-term ROI are the priority. Monofacial Solar Panels, by contrast, are often better suited to budget-driven projects or systems with limited rear-side irradiance.
| Comparison point | Bifacial Solar Panels | Monofacial Solar Panels |
|---|---|---|
| Energy yield | usually higher, but strongly dependent on installation conditions | solid standard yield, easier to forecast |
| Upfront investment | generally higher | generally lower |
| Typical applications | ground-mounted, carports, selected commercial roofs | standard roofs, low-reflectivity environments, cost-focused projects |
| Decision logic | more focused on long-term yield and ROI | more focused on investment control and standardisation |
The underlying cell technology affects efficiency, temperature behaviour and also the potential for rear-side performance. For project decisions, the key point is to understand how these technologies perform in real applications.
A proven technology with well-controlled costs. It remains relevant in many standard projects, although bifacial gain is usually more limited.
One of today’s mainstream technologies, offering a strong balance of efficiency, temperature performance and bifaciality. Widely suitable across many project types.
Often associated with higher bifaciality and very good temperature performance. Particularly attractive for highly reflective environments and projects focused on long-term yield.
We offer bifacial Solar Panels for a wide range of project types — from commercial rooftop systems and ground-mounted plants to carports and agri-PV applications. The key is not only which solar panel is technically available, but which solution genuinely fits the project.
Suitable for many commercial rooftops, carports and ground-mounted solar plants. This solution combines solid efficiency, good bifaciality and broad system compatibility.
Particularly suitable for highly reflective environments, carports and specialised structural solutions. A strong option for projects where rear-side performance, long-term yield and temperature behaviour matter most.
Tell us your project type, roof or ground conditions, target capacity and installation method. We can help you assess quickly whether bifacial solar panels make sense or whether monofacial solar panels would be the more economical choice.
In bifacial projects, solar panel specifications are not the only factor that matters. In practice, supply stability, the right technology, project alignment and reliable availability are often just as important as individual performance figures.
Different technologies can be matched more precisely to rooftops, ground-mounted systems, carports or agri-PV, rather than forcing every project into the same solar panel type.
Local stockholding and more flexible delivery options help reduce project lead times and lower uncertainty in the procurement process.
For customers with ongoing projects, repeat delivery needs and standardised power classes, availability and supply planning can be managed more effectively.
These are exactly the points that often matter most in practice when customers compare bifacial and monofacial solar panels.
Not always — on many standard roofs, the additional yield remains fairly limited.
This is usually because typical roof surfaces reflect little light and installation height is low. As a result, the rear side receives only a limited amount of usable light. With tilt-mounted systems, light-coloured roofs or more open structures, the situation can look very different.
Typically, the additional yield is around 5% to 25%.
The real figure depends on the ground surface, reflectivity, installation height, solar panel tilt angle and system layout. The same solar panel can deliver very different results in two different projects.
Where reflectivity is weak or there is little scope for rear-side irradiance, they are usually not the first choice.
Typical examples include standard residential roofs, roof-parallel systems or installation scenarios where the rear side receives very little light. In such cases, the additional yield is often not sufficient to justify the higher cost.
Higher reflectivity, more ground clearance, and an optimised tilt angle and row spacing can make a noticeable difference.
In ground-mounted systems, light-coloured surfaces, white gravel or a carefully designed row layout can make rear-side performance much more usable.
In most cases, yes — the upfront investment is usually higher than for monofacial solar panels.
However, if the project offers good conditions for rear-side performance, the additional power generation can partly or fully offset the higher cost over the project lifetime and improve ROI.