SolarWindow ships 0.85 mm 'peel-and-stick' solar film with 24.4% efficiency

SolarWindow launches 0.85 mm-thick, self-adhesive solar film

SolarWindow ships 0.85 mm 'peel-and-stick' solar film with 24.4% efficiency

US-based SolarWindow Technologies has launched ElectroFlex, an ultra-thin, flexible solar film that sticks to flat or curved surfaces without frames or rigid glass. At just 0.85 mm thick and with a power-to-weight ratio of 73 W/kg, it targets weight-sensitive applications like truck roofs, trains, drones, and aircraft. The film uses interdigitated back-contact cells with 24.4% efficiency, and SolarWindow is initially offering it to Tier 1 OEMs in the US, with plans to expand to North America and Asia.

The company describes ElectroFlex as a “peel-and-stick” solution that can be applied directly to various surfaces without frames, rigid glass, or conventional support structures.

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2026-08-31