Mono S4 Halfcut BC Series

Available from fall 2025

Back Contact technology - the next generation of solar modules

The demands placed on modern solar modules are constantly increasing: maximum efficiency, attractive design and long-term reliability are decisive factors today. With back-contact technology, we offer a pioneering solution that meets these requirements – and sets new standards in the solar industry.

Back Contact technology revolutionizes the solar industry

By moving all electrical contacts to the back of the cell, the entire front side is available for light absorption. The result is higher efficiency, less shading and an impressively homogeneous, elegant module appearance. Thanks to this technology, solar modules today not only offer more power, but also a flawless design that can be perfectly integrated into any architecture. The BC Series combines these advantages with the latest cell technology to ensure maximum energy yields – today and for the future.

Advantages of Back Contact solar modules

Maximum energy yield

Increased performance through full utilization
of the cell surface.

High reliability

Improved durability and reduced degradation
of the modules.

Modern design

Homogeneous, contact-free cell optics for sophisticated architectural projects.

Optimized shading tolerance

Better performance in partial shade or unfavorable lighting conditions.

Solar Factory Mono S4 Back Contact Module Teaser

Our solution:

The Mono S4 Halfcut BC Series

The BC Series modules combine the highest quality with state-of-the-art technology. With the Mono S4 BC White and the Mono S4 BC Full Black, we offer two high-performance variants that are tailored to the different requirements of our customers. Both modules impress with their excellent manufacturing quality, exceptional durability and state-of-the-art technology.

Features of the Mono Halfcut S4 BC Series

Rear contacting

All electrical cables are located on the back of the cell – more light absorption on the front.

Reduced Hot Sport Education

More even power distribution reduces the risk of heat islands.

N-Type TOPCon technology

Advanced cell technology with extremely low degradation and higher energy yields even at high temperatures.

Robust double-glazed design

Increased mechanical strength, better resistance to environmental influences and longer service life.

Minimized electrical losses

Shorter cable runs reduce resistance and increase
efficiency.

Increased mechanical stability

Better load capacity of the cells due to reduced material stresses

Bifaciality

Energy generation on the front and back of the modules – for up to 30 % additional yields, depending on the installation environment.

Long-term guarantees

A 15-year product guarantee and 30-year performance guarantee ensure reliable use for decades.

Conclusion

With the Mono S4 BC Series, you get solar modules that impress with maximum efficiency, first-class design and extreme durability. The combination of innovative back-contact technology, N-type TOPCon cells, double-glass construction and bifacial energy generation makes our modules the ideal choice for future-proof and sophisticated solar solutions. Invest in quality that you can rely on for decades.

Mono S4 Halfcut Transparency Project with 290 watts

Mono S4 Halfcut | BC White

480 W / 485 W

Mono S4 Halfcut Transparency Project with 380 watts

Mono S4 Halfcut | BC Full Black

475 W / 480 W

Our contacts for personal advice and support with questions about solar systems are available to you at any time

Do you have any questions

Our team is always at your disposal. We will help you find the right module for your project and offer you sound advice.