Bifacial glass-glass modules from Heckert Solar - robust, efficient, future-proof


With the Zeus 2.1 and 2.2 series, Heckert Solar offers high-performance bifacial glass-glass modules "Made in Germany" that have been developed for demanding applications - from commercial roofs to ground-mounted systems. Thanks to n-type cell technology, bifacial design and double glass construction, they deliver stable energy yields even under extreme conditions. High mechanical resilience, a long service life and a particularly good temperature coefficient make the modules the ideal choice for projects with a focus on efficiency and investment security.

Find out more about bifacial solar technology and glass-glass technology.

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Heckert Solar - Glass-glass modules with bifacial technology for maximum yields


Heckert Solar combines German quality manufacturing with high-performance solar technology. The bifacial glass-glass modules of the Zeus series, in particular the Zeus 2.1 and Zeus 2.2 variants, have been specially developed for large-scale systems and demanding PV projects. They combine maximum efficiency, double-sided energy generation and extreme durability - making them a future-proof solution for ground-mounted systems, industrial projects and PV systems with maximum area utilization.

Technological highlights of the Zeus glass-glass series

  • Bifacial cell technology
    The Zeus 2.1 and 2.2 modules use n-type M10 solar cells that utilize light on the front and back.
    The bifacial efficiency is up to 80 % back-surface power, which - depending on the substrate - enables significant additional yields.

  • High module efficiency
    The modules achieve up to 22.19 % efficiency on the front side, making them one of the most powerful solutions on the market.

  • Glass-glass construction for maximum stability
    Both sides of the module are covered with 2 mm tempered glass. This reliably protects the solar cells from environmental influences and ensures mechanical strength - even in snow, wind and hail.

  • Maximum fire protection and corrosion resistance
    The modules comply with fire protection class A and are tested for resistance to ammonia and salt spray in accordance with IEC 62716 & 61701, making them ideal for coastal areas and agricultural applications.

  • Long-term guarantee & service life
    Heckert offers a 30-year linear performance guarantee, with a guaranteed output of at least 84.95 % after 30 years - a clear sign of longevity and quality.

Which projects are the modules suitable for?


The bifacial glass-glass modules from Heckert Solar are ideal for

  • Large ground-mounted systems with a reflective substrate

  • PV projects with increased mechanical requirements

  • Applications near the coast, in agriculture or industry

  • Installations where maximum energy yield per m² counts

Discover more technologies from Heckert Solar

  • Zeus 1.0 & 1.1 - Glass-glass modules for small and medium-sized projects

  • All Black modules - Aesthetic solar solutions for demanding roofs

  • Modules with n-type TOPCon technology - High efficiency & low degradation

  • Various power classes - e.g. 445 Wp, 615 Wp, 710 Wp