Fraunhofer CSP partners with Exxosqel GmbH to develop ultra‑thin glass photovoltaic modules

Type: Partnership · Technology: Solar · Country: Germany · Announced: 2026-07-21

Fraunhofer CSP and Exxosqel GmbH announced a partnership to co‑develop a demonstrator solar module that uses 1 mm‑thick front and rear glass panes measuring 300 mm × 200 mm. The module incorporates standard encapsulant materials and nine‑busbar bifacial PERC M6 cells, each delivering approximately 1.58 W, and is fabricated on a conventional photovoltaic laminator with adjusted temperature and pressure settings. Laboratory tests reported that the special coating raises the fracture strength of 1 mm glass from 184 MPa to over 1,300 MPa, enabling up to a 40 % weight reduction and lower material, energy, and carbon footprints. The technology is positioned for building‑integrated photovoltaics (BIPV) and other lightweight solar applications, potentially lowering module manufacturing costs and transport expenses. The partnership, disclosed on 21 July 2026, marks the first joint effort between the German research centre and the startup to bring ultra‑thin glass solutions to market.

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