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Partnering with pioneering developers to pilot next-generation daylighting

Retro Solar & Köster Lightplanning have partnered with leading universities to advance mirror-optic daylighting. We’re now seeking pioneering collaborators for the next generation of daylighting research — studying real buildings to quantify daylight gain, comfort, and ROI.

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proven success in flagship projects across 11 countries

Advancing the Daylighting Frontier

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RETROSolar daylighting uses mirror-optic louvers to channel daylight deep into buildings while reflecting unwanted heat outdoors. The result: bright, glare-free interiors with lower cooling and lighting costs.

The next level of groundbreaking daylighting research: our researchers will study your building for daylighting gain and ROI. 

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6.5M

square feet of demonstrated projects around the world. 

11

Countries with RETROSolar projects implemented. 

35+

Years of experience implementing daylighting systems.

5%

Achieving the lowest G (SGHC) values across our product lines.

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